X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FMEDLoader%2FMEDFileField.hxx;h=d26ae7a69424035616bea54a74201012c650e66f;hb=cdd09520be1ff9d51b7f67e39fb0866bb71db901;hp=e7539a889a80e798cb7d3c7415a21bd9410daeb2;hpb=c5873d1cac2ac6b6becd4d64a76049adc5a44595;p=tools%2Fmedcoupling.git

diff --git a/src/MEDLoader/MEDFileField.hxx b/src/MEDLoader/MEDFileField.hxx
index e7539a889..d26ae7a69 100644
--- a/src/MEDLoader/MEDFileField.hxx
+++ b/src/MEDLoader/MEDFileField.hxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2014  CEA/DEN, EDF R&D
+// Copyright (C) 2007-2016  CEA/DEN, EDF R&D
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
@@ -26,8 +26,11 @@
 #include "MEDFileFieldOverView.hxx"
 #include "MEDFileUtilities.hxx"
 
-#include "MEDCouplingAutoRefCountObjectPtr.hxx"
+#include "MCAuto.hxx"
+#include "MEDLoaderTraits.hxx"
+#include "MEDCouplingTraits.hxx"
 #include "MEDCouplingRefCountObject.hxx"
+#include "MEDCouplingFieldInt.hxx"
 #include "MEDCouplingMemArray.hxx"
 
 #include "NormalizedUnstructuredMesh.hxx"
@@ -40,7 +43,7 @@
 
 #include "med.h"
 
-namespace ParaMEDMEM
+namespace MEDCoupling
 {
   class MEDFileFieldGlobs;
   class MEDCouplingMesh;
@@ -58,7 +61,7 @@ namespace ParaMEDMEM
     static MEDFileFieldLoc *New(const std::string& locName, INTERP_KERNEL::NormalizedCellType geoType, const std::vector<double>& refCoo, const std::vector<double>& gsCoo, const std::vector<double>& w);
     std::size_t getHeapMemorySizeWithoutChildren() const;
     std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDFileFieldLoc *deepCpy() const;
+    MEDFileFieldLoc *deepCopy() const;
     MEDLOADER_EXPORT int getNbOfGaussPtPerCell() const { return _nb_gauss_pt; }
     MEDLOADER_EXPORT void writeLL(med_idt fid) const;
     MEDLOADER_EXPORT std::string repr() const;
@@ -93,16 +96,17 @@ namespace ParaMEDMEM
   class MEDFileFieldNameScope;
   class MEDFileFieldGlobsReal;
   class MEDFileFieldPerMesh;
+  class PartDefinition;
 
   class MEDFileFieldPerMeshPerTypePerDisc : public RefCountObject, public MEDFileWritable
   {
   public:
-    static MEDFileFieldPerMeshPerTypePerDisc *NewOnRead(MEDFileFieldPerMeshPerType *fath, TypeOfField type, int profileIt);
+    static MEDFileFieldPerMeshPerTypePerDisc *NewOnRead(MEDFileFieldPerMeshPerType *fath, TypeOfField type, int profileIt, const PartDefinition *pd);
     static MEDFileFieldPerMeshPerTypePerDisc *New(MEDFileFieldPerMeshPerType *fath, TypeOfField type, int locId);
     static MEDFileFieldPerMeshPerTypePerDisc *New(const MEDFileFieldPerMeshPerTypePerDisc& other);
     std::size_t getHeapMemorySizeWithoutChildren() const;
     std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDFileFieldPerMeshPerTypePerDisc *deepCpy(MEDFileFieldPerMeshPerType *father) const;
+    MEDFileFieldPerMeshPerTypePerDisc *deepCopy(MEDFileFieldPerMeshPerType *father) const;
     void assignFieldNoProfile(int& start, int offset, int nbOfCells, const MEDCouplingFieldDouble *field, const DataArray *arrr, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
     void assignFieldProfile(bool isPflAlone, int& start, const DataArrayInt *multiTypePfl, const DataArrayInt *idsInPfl, DataArrayInt *locIds, int nbOfEltsInWholeMesh, const MEDCouplingFieldDouble *field, const DataArray *arrr, const MEDCouplingMesh *mesh, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
     void assignNodeFieldNoProfile(int& start, const MEDCouplingFieldDouble *field, const DataArray *arrr, MEDFileFieldGlobsReal& glob);
@@ -125,6 +129,7 @@ namespace ParaMEDMEM
     int getNumberOfTuples() const;
     int getStart() const { return _start; }
     int getEnd() const { return _end; }
+    int getNumberOfVals() const { return _nval; }
     DataArray *getOrCreateAndGetArray();
     const DataArray *getOrCreateAndGetArray() const;
     const std::vector<std::string>& getInfo() const;
@@ -146,15 +151,19 @@ namespace ParaMEDMEM
     static std::vector< std::vector< const MEDFileFieldPerMeshPerTypePerDisc *> > SplitPerDiscretization(const std::vector< const MEDFileFieldPerMeshPerTypePerDisc *>& entries);
     static bool RenumberChunks(int offset, const std::vector< const MEDFileFieldPerMeshPerTypePerDisc *>& entriesOnSameDisc,
                                const DataArrayInt *explicitIdsInMesh, const std::vector<int>& newCode,
-                               MEDFileFieldGlobsReal& glob, DataArrayDouble *arr, std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileFieldPerMeshPerTypePerDisc> >& result);
+                               MEDFileFieldGlobsReal& glob, DataArrayDouble *arr, std::vector< MCAuto<MEDFileFieldPerMeshPerTypePerDisc> >& result);
     static MEDFileFieldPerMeshPerTypePerDisc *NewObjectOnSameDiscThanPool(TypeOfField typeF, INTERP_KERNEL::NormalizedCellType geoType, DataArrayInt *idsOfMeshElt,
                                                                           bool isPfl, int nbi, int offset, std::list< const MEDFileFieldPerMeshPerTypePerDisc *>& entriesOnSameDisc,
                                                                           MEDFileFieldGlobsReal& glob, bool &notInExisting);
+    static MCAuto<MEDFileFieldPerMeshPerTypePerDisc> Aggregate(int &start, const std::vector<std::pair<int,const MEDFileFieldPerMeshPerTypePerDisc *> >& pms, const std::vector< std::vector< std::pair<int,int> > >& dts, TypeOfField tof, MEDFileFieldPerMeshPerType *father, std::vector<std::pair< int, std::pair<int,int> > >& extractInfo);
+    MEDFileFieldPerMeshPerTypePerDisc(MEDFileFieldPerMeshPerType *fath, TypeOfField type):_type(type),_father(fath),_start(-1),_end(-1),_nval(-1),_loc_id(-5),_profile_it(-1) { }
   private:
-    MEDFileFieldPerMeshPerTypePerDisc(MEDFileFieldPerMeshPerType *fath, TypeOfField type, int profileIt);
+    MEDFileFieldPerMeshPerTypePerDisc(MEDFileFieldPerMeshPerType *fath, TypeOfField type, int profileIt, const PartDefinition *pd);
     MEDFileFieldPerMeshPerTypePerDisc(MEDFileFieldPerMeshPerType *fath, TypeOfField type, int profileIt, const std::string& dummy);
     MEDFileFieldPerMeshPerTypePerDisc(const MEDFileFieldPerMeshPerTypePerDisc& other);
     MEDFileFieldPerMeshPerTypePerDisc();
+  private:
+    void goReadZeValuesInFile(med_idt fid, const std::string& fieldName, int nbOfCompo, int iteration, int order, med_entity_type menti, med_geometry_type mgeoti, unsigned char *startFeedingPtr);
   private:
     TypeOfField _type;
     MEDFileFieldPerMeshPerType *_father;
@@ -167,6 +176,7 @@ namespace ParaMEDMEM
     //! only on assignement -3 : ON_NODES, -2 : ON_CELLS, -1 : ON_GAUSS_NE, 0..* : ON_GAUSS_PT
     mutable int _loc_id;
     mutable int _profile_it;
+    MCAuto<PartDefinition> _pd;
   public:
     mutable int _tmp_work1;
   };
@@ -175,10 +185,10 @@ namespace ParaMEDMEM
   {
   public:
     static MEDFileFieldPerMeshPerType *New(MEDFileFieldPerMesh *fath, INTERP_KERNEL::NormalizedCellType geoType);
-    static MEDFileFieldPerMeshPerType *NewOnRead(med_idt fid, MEDFileFieldPerMesh *fath, TypeOfField type, INTERP_KERNEL::NormalizedCellType geoType, const MEDFileFieldNameScope& nasc);
+    static MEDFileFieldPerMeshPerType *NewOnRead(med_idt fid, MEDFileFieldPerMesh *fath, TypeOfField type, INTERP_KERNEL::NormalizedCellType geoType, const MEDFileFieldNameScope& nasc, const PartDefinition *pd);
     std::size_t getHeapMemorySizeWithoutChildren() const;
     std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDFileFieldPerMeshPerType *deepCpy(MEDFileFieldPerMesh *father) const;
+    MEDFileFieldPerMeshPerType *deepCopy(MEDFileFieldPerMesh *father) const;
     void assignFieldNoProfile(int& start, int offset, int nbOfCells, const MEDCouplingFieldDouble *field, const DataArray *arr, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
     void assignFieldProfile(bool isPflAlone, int& start, const DataArrayInt *multiTypePfl, const DataArrayInt *idsInPfl, DataArrayInt *locIds, int nbOfEltsInWholeMesh, const MEDCouplingFieldDouble *field, const DataArray *arr, const MEDCouplingMesh *mesh, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
     void assignNodeFieldNoProfile(int& start, const MEDCouplingFieldDouble *field, const DataArray *arr, MEDFileFieldGlobsReal& glob);
@@ -188,6 +198,7 @@ namespace ParaMEDMEM
     void loadBigArraysRecursively(med_idt fid, const MEDFileFieldNameScope& nasc);
     void writeLL(med_idt fid, const MEDFileFieldNameScope& nasc) const;
     void getDimension(int& dim) const;
+    bool isUniqueLevel(int& dim) const;
     void fillTypesOfFieldAvailable(std::set<TypeOfField>& types) const;
     void fillFieldSplitedByType(std::vector< std::pair<int,int> >& dads, std::vector<TypeOfField>& types, std::vector<std::string>& pfls, std::vector<std::string>& locs) const;
     int getIteration() const;
@@ -198,6 +209,7 @@ namespace ParaMEDMEM
     void getSizes(int& globalSz, int& nbOfEntries) const;
     INTERP_KERNEL::NormalizedCellType getGeoType() const;
     int getNumberOfComponents() const;
+    bool presenceOfMultiDiscPerGeoType() const;
     DataArray *getOrCreateAndGetArray();
     const DataArray *getOrCreateAndGetArray() const;
     const std::vector<std::string>& getInfo() const;
@@ -209,32 +221,37 @@ namespace ParaMEDMEM
     void changeLocsRefsNamesGen(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
     MEDFileFieldPerMeshPerTypePerDisc *getLeafGivenLocId(int locId);
     const MEDFileFieldPerMeshPerTypePerDisc *getLeafGivenLocId(int locId) const;
+    int getNumberOfLoc() const { return _field_pm_pt_pd.size(); }
     void getFieldAtLevel(int meshDim, TypeOfField type, const MEDFileFieldGlobsReal *glob, std::vector< std::pair<int,int> >& dads, std::vector<const DataArrayInt *>& pfls, std::vector<int>& locs, std::vector<INTERP_KERNEL::NormalizedCellType>& geoTypes) const;
     void fillValues(int& startEntryId, std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
-    void setLeaves(const std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileFieldPerMeshPerTypePerDisc > >& leaves);
+    void setLeaves(const std::vector< MCAuto< MEDFileFieldPerMeshPerTypePerDisc > >& leaves);
     bool keepOnlySpatialDiscretization(TypeOfField tof, int &globalNum, std::vector< std::pair<int,int> >& its);
+    bool keepOnlyGaussDiscretization(std::size_t idOfDisc, int &globalNum, std::vector< std::pair<int,int> >& its);
     static med_entity_type ConvertIntoMEDFileType(TypeOfField ikType, INTERP_KERNEL::NormalizedCellType ikGeoType, med_geometry_type& medfGeoType);
+    static MCAuto<MEDFileFieldPerMeshPerType> Aggregate(int &start, const std::vector< std::pair<int,const MEDFileFieldPerMeshPerType *> >& pms, const std::vector< std::vector< std::pair<int,int> > >& dts, INTERP_KERNEL::NormalizedCellType gt, MEDFileFieldPerMesh *father, std::vector<std::pair< int, std::pair<int,int> > >& extractInfo);
+    MEDFileFieldPerMeshPerType(MEDFileFieldPerMesh *father, INTERP_KERNEL::NormalizedCellType gt):_father(father),_geo_type(gt) { }
   private:
     std::vector<int> addNewEntryIfNecessary(const MEDCouplingFieldDouble *field, int offset, int nbOfCells);
     std::vector<int> addNewEntryIfNecessaryGauss(const MEDCouplingFieldDouble *field, int offset, int nbOfCells);
     std::vector<int> addNewEntryIfNecessary(const MEDCouplingFieldDouble *field, const DataArrayInt *subCells);
     std::vector<int> addNewEntryIfNecessaryGauss(const MEDCouplingFieldDouble *field, const DataArrayInt *subCells);
-    MEDFileFieldPerMeshPerType(med_idt fid, MEDFileFieldPerMesh *fath, TypeOfField type, INTERP_KERNEL::NormalizedCellType geoType, const MEDFileFieldNameScope& nasc);
-    MEDFileFieldPerMeshPerType(MEDFileFieldPerMesh *fath, INTERP_KERNEL::NormalizedCellType geoType);
+    MEDFileFieldPerMeshPerType(med_idt fid, MEDFileFieldPerMesh *fath, TypeOfField type, INTERP_KERNEL::NormalizedCellType geoType, const MEDFileFieldNameScope& nasc, const PartDefinition *pd);
   private:
     MEDFileFieldPerMesh *_father;
-    std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileFieldPerMeshPerTypePerDisc> > _field_pm_pt_pd;
+    std::vector< MCAuto<MEDFileFieldPerMeshPerTypePerDisc> > _field_pm_pt_pd;
     INTERP_KERNEL::NormalizedCellType _geo_type;
   };
 
+  class MEDFileMesh;
+
   class MEDFileFieldPerMesh : public RefCountObject, public MEDFileWritable
   {
   public:
     static MEDFileFieldPerMesh *New(MEDFileAnyTypeField1TSWithoutSDA *fath, const MEDCouplingMesh *mesh);
-    static MEDFileFieldPerMesh *NewOnRead(med_idt fid, MEDFileAnyTypeField1TSWithoutSDA *fath, int meshCsit, int meshIteration, int meshOrder, const MEDFileFieldNameScope& nasc);
+    static MEDFileFieldPerMesh *NewOnRead(med_idt fid, MEDFileAnyTypeField1TSWithoutSDA *fath, int meshCsit, int meshIteration, int meshOrder, const MEDFileFieldNameScope& nasc, const MEDFileMesh *mm, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     std::size_t getHeapMemorySizeWithoutChildren() const;
     std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDFileFieldPerMesh *deepCpy(MEDFileAnyTypeField1TSWithoutSDA *father) const;
+    MEDFileFieldPerMesh *deepCopy(MEDFileAnyTypeField1TSWithoutSDA *father) const;
     void simpleRepr(int bkOffset,std::ostream& oss, int id) const;
     void copyTinyInfoFrom(const MEDCouplingMesh *mesh);
     void assignFieldProfile(int& start, const DataArrayInt *multiTypePfl, const std::vector<int>& code, const std::vector<int>& code2, const std::vector<DataArrayInt *>& idsInPflPerType, const std::vector<DataArrayInt *>& idsPerType, const MEDCouplingFieldDouble *field, const DataArray *arr, const MEDCouplingMesh *mesh, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
@@ -247,6 +264,7 @@ namespace ParaMEDMEM
     void fillTypesOfFieldAvailable(std::set<TypeOfField>& types) const;
     std::vector< std::vector< std::pair<int,int> > > getFieldSplitedByType(std::vector<INTERP_KERNEL::NormalizedCellType>& types, std::vector< std::vector<TypeOfField> >& typesF, std::vector< std::vector<std::string> >& pfls, std::vector< std::vector<std::string> >& locs) const;
     void getDimension(int& dim) const;
+    bool isUniqueLevel(int& dim) const;
     double getTime() const;
     int getIteration() const;
     int getOrder() const;
@@ -254,6 +272,7 @@ namespace ParaMEDMEM
     int getMeshOrder() const { return _mesh_order; }
     std::string getMeshName() const { return _mesh_name; }
     int getNumberOfComponents() const;
+    bool presenceOfMultiDiscPerGeoType() const;
     DataArray *getOrCreateAndGetArray();
     const DataArray *getOrCreateAndGetArray() const;
     const std::vector<std::string>& getInfo() const;
@@ -264,39 +283,41 @@ namespace ParaMEDMEM
     bool changeMeshNames(const std::vector< std::pair<std::string,std::string> >& modifTab);
     bool renumberEntitiesLyingOnMesh(const std::string& meshName, const std::vector<int>& oldCode, const std::vector<int>& newCode, const DataArrayInt *renumO2N, MEDFileFieldGlobsReal& glob);
     void keepOnlySpatialDiscretization(TypeOfField tof, int &globalNum, std::vector< std::pair<int,int> >& its);
+    void keepOnlyGaussDiscretization(std::size_t idOfDisc, int &globalNum, std::vector< std::pair<int,int> >& its);
     void changePflsRefsNamesGen(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
     void changeLocsRefsNamesGen(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
-    MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, const MEDFileFieldGlobsReal *glob, const MEDCouplingMesh *mesh, bool& isPfl, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+    MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, const MEDFileFieldGlobsReal *glob, const MEDCouplingMesh *mesh, bool& isPfl, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
     DataArray *getFieldOnMeshAtLevelWithPfl(TypeOfField type, const MEDCouplingMesh *mesh, DataArrayInt *&pfl, const MEDFileFieldGlobsReal *glob, const MEDFileFieldNameScope& nasc) const;
     void getUndergroundDataArrayExt(std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
     MEDFileFieldPerMeshPerTypePerDisc *getLeafGivenTypeAndLocId(INTERP_KERNEL::NormalizedCellType typ, int locId);
     const MEDFileFieldPerMeshPerTypePerDisc *getLeafGivenTypeAndLocId(INTERP_KERNEL::NormalizedCellType typ, int locId) const;
+    static MCAuto<MEDFileFieldPerMesh> Aggregate(int &start, const std::vector<const MEDFileFieldPerMesh *>& pms, const std::vector< std::vector< std::pair<int,int> > >& dts, MEDFileAnyTypeField1TSWithoutSDA *father, std::vector<std::pair< int, std::pair<int,int> > >& extractInfo);
   private:
     int addNewEntryIfNecessary(INTERP_KERNEL::NormalizedCellType type);
     MEDCouplingFieldDouble *finishField(TypeOfField type, const MEDFileFieldGlobsReal *glob,
-                                        const std::vector< std::pair<int,int> >& dads, const std::vector<int>& locs, const MEDCouplingMesh *mesh, bool& isPfl, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+                                        const std::vector< std::pair<int,int> >& dads, const std::vector<int>& locs, const MEDCouplingMesh *mesh, bool& isPfl, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
     MEDCouplingFieldDouble *finishField2(TypeOfField type, const MEDFileFieldGlobsReal *glob,
                                          const std::vector< std::pair<int,int> >& dads, const std::vector<int>& locs,
                                          const std::vector<INTERP_KERNEL::NormalizedCellType>& geoTypes,
-                                         const MEDCouplingMesh *mesh, const DataArrayInt *da, bool& isPfl, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+                                         const MEDCouplingMesh *mesh, const DataArrayInt *da, bool& isPfl, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
     MEDCouplingFieldDouble *finishFieldNode2(const MEDFileFieldGlobsReal *glob,
                                              const std::vector< std::pair<int,int> >& dads, const std::vector<int>& locs,
-                                             const MEDCouplingMesh *mesh, const DataArrayInt *da, bool& isPfl, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+                                             const MEDCouplingMesh *mesh, const DataArrayInt *da, bool& isPfl, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
     DataArray *finishField4(const std::vector< std::pair<int,int> >& dads, const DataArrayInt *pflIn, int nbOfElems, DataArrayInt *&pflOut) const;
-    void assignNewLeaves(const std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileFieldPerMeshPerTypePerDisc > >& leaves);
+    void assignNewLeaves(const std::vector< MCAuto< MEDFileFieldPerMeshPerTypePerDisc > >& leaves);
     static void SortArraysPerType(const MEDFileFieldGlobsReal *glob, TypeOfField type, 
                                   const std::vector<INTERP_KERNEL::NormalizedCellType>& geoTypes, const std::vector< std::pair<int,int> >& dads, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& locs,
                                   std::vector<int>& code, std::vector<DataArrayInt *>& notNullPfls);
     static int ComputeNbOfElems(const MEDFileFieldGlobsReal *glob, TypeOfField type, const std::vector<INTERP_KERNEL::NormalizedCellType>& geoTypes, const std::vector< std::pair<int,int> >& dads, const std::vector<int>& locs);
-    MEDFileFieldPerMesh(med_idt fid, MEDFileAnyTypeField1TSWithoutSDA *fath, int meshCsit, int meshIteration, int meshOrder, const MEDFileFieldNameScope& nasc);
+    MEDFileFieldPerMesh(med_idt fid, MEDFileAnyTypeField1TSWithoutSDA *fath, int meshCsit, int meshIteration, int meshOrder, const MEDFileFieldNameScope& nasc, const MEDFileMesh *mm, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     MEDFileFieldPerMesh(MEDFileAnyTypeField1TSWithoutSDA *fath, const MEDCouplingMesh *mesh);
+    MEDFileFieldPerMesh(MEDFileAnyTypeField1TSWithoutSDA *fath, const std::string& meshName, int meshIt, int meshOrd):_father(fath),_mesh_name(meshName),_mesh_iteration(meshIt),_mesh_order(meshOrd) { }
   private:
     std::string _mesh_name;
     int _mesh_iteration;
     int _mesh_order;
-    int _mesh_csit;
     MEDFileAnyTypeField1TSWithoutSDA *_father;
-    std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileFieldPerMeshPerType > > _field_pm_pt;
+    std::vector< MCAuto< MEDFileFieldPerMeshPerType > > _field_pm_pt;
   };
 
   class MEDFileFieldGlobsReal;
@@ -308,7 +329,7 @@ namespace ParaMEDMEM
     static MEDFileFieldGlobs *New();
     std::size_t getHeapMemorySizeWithoutChildren() const;
     std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDFileFieldGlobs *deepCpy() const;
+    MEDFileFieldGlobs *deepCopy() const;
     MEDFileFieldGlobs *shallowCpyPart(const std::vector<std::string>& pfls, const std::vector<std::string>& locs) const;
     MEDFileFieldGlobs *deepCpyPart(const std::vector<std::string>& pfls, const std::vector<std::string>& locs) const;
     void simpleRepr(std::ostream& oss) const;
@@ -354,8 +375,8 @@ namespace ParaMEDMEM
     MEDFileFieldGlobs();
     ~MEDFileFieldGlobs();
   protected:
-    std::vector< MEDCouplingAutoRefCountObjectPtr<DataArrayInt> > _pfls;
-    std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileFieldLoc> > _locs;
+    std::vector< MCAuto<DataArrayInt> > _pfls;
+    std::vector< MCAuto<MEDFileFieldLoc> > _locs;
     std::string _file_name;
   };
 
@@ -428,7 +449,7 @@ namespace ParaMEDMEM
     MEDFileFieldGlobs *contentNotNull();
     const MEDFileFieldGlobs *contentNotNull() const;
   protected:
-    MEDCouplingAutoRefCountObjectPtr< MEDFileFieldGlobs > _globals;
+    MCAuto< MEDFileFieldGlobs > _globals;
   };
 
   class MEDFileFieldNameScope
@@ -446,6 +467,8 @@ namespace ParaMEDMEM
     std::string _dt_unit;
   };
 
+  class MEDFileMeshes;
+
   /*!
    * SDA is for Shared Data Arrays such as profiles.
    */
@@ -487,6 +510,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT int getNumberOfComponents() const;
     MEDLOADER_EXPORT const std::vector<std::string>& getInfo() const;
     MEDLOADER_EXPORT std::vector<std::string>& getInfo();
+    MEDLOADER_EXPORT bool presenceOfMultiDiscPerGeoType() const;
     MEDLOADER_EXPORT void setInfo(const std::vector<std::string>& infos);
     MEDLOADER_EXPORT std::size_t getHeapMemorySizeWithoutChildren() const;
     MEDLOADER_EXPORT std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
@@ -494,9 +518,9 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT void setFieldNoProfileSBT(const MEDCouplingFieldDouble *field, const DataArray *arr, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
     MEDLOADER_EXPORT void setFieldProfile(const MEDCouplingFieldDouble *field, const DataArray *arrOfVals, const MEDFileMesh *mesh, int meshDimRelToMax, const DataArrayInt *profile, MEDFileFieldGlobsReal& glob, const MEDFileFieldNameScope& nasc);
     MEDLOADER_EXPORT virtual void simpleRepr(int bkOffset, std::ostream& oss, int f1tsId) const;
-    MEDLOADER_EXPORT virtual MEDFileAnyTypeField1TSWithoutSDA *deepCpy() const = 0;
+    MEDLOADER_EXPORT virtual MEDFileAnyTypeField1TSWithoutSDA *deepCopy() const = 0;
     MEDLOADER_EXPORT virtual MEDFileAnyTypeField1TSWithoutSDA *shallowCpy() const = 0;
-    MEDLOADER_EXPORT virtual std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeField1TSWithoutSDA> > splitComponents() const;
+    MEDLOADER_EXPORT virtual std::vector< MCAuto<MEDFileAnyTypeField1TSWithoutSDA> > splitComponents() const;
     MEDLOADER_EXPORT virtual const char *getTypeStr() const = 0;
     MEDLOADER_EXPORT virtual DataArray *getUndergroundDataArray() const = 0;
     MEDLOADER_EXPORT virtual DataArray *getUndergroundDataArrayExt(std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const = 0;
@@ -505,22 +529,25 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT virtual DataArray *getOrCreateAndGetArray() = 0;
     MEDLOADER_EXPORT virtual const DataArray *getOrCreateAndGetArray() const = 0;
   public:
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevel(TypeOfField type, int meshDimRelToMax, const std::string& mName, int renumPol, const MEDFileFieldGlobsReal *glob, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int meshDimRelToMax, int renumPol, const MEDFileFieldGlobsReal *glob, const MEDFileMesh *mesh, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtTopLevel(TypeOfField type, const std::string& mName, int renumPol, const MEDFileFieldGlobsReal *glob, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int renumPol, const MEDFileFieldGlobsReal *glob, const MEDCouplingMesh *mesh, const DataArrayInt *cellRenum, const DataArrayInt *nodeRenum, MEDCouplingAutoRefCountObjectPtr<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *fieldOnMesh(const MEDFileFieldGlobsReal *glob, const MEDFileMesh *mesh, MCAuto<DataArray>& arrOut, const MEDFileFieldNameScope& nasc) const;
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevel(TypeOfField type, int meshDimRelToMax, const std::string& mName, int renumPol, const MEDFileFieldGlobsReal *glob, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int meshDimRelToMax, int renumPol, const MEDFileFieldGlobsReal *glob, const MEDFileMesh *mesh, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtTopLevel(TypeOfField type, const std::string& mName, int renumPol, const MEDFileFieldGlobsReal *glob, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int renumPol, const MEDFileFieldGlobsReal *glob, const MEDCouplingMesh *mesh, const DataArrayInt *cellRenum, const DataArrayInt *nodeRenum, MCAuto<DataArray> &arrOut, const MEDFileFieldNameScope& nasc) const;
     DataArray *getFieldWithProfile(TypeOfField type, int meshDimRelToMax, const MEDFileMesh *mesh, DataArrayInt *&pfl, const MEDFileFieldGlobsReal *glob, const MEDFileFieldNameScope& nasc) const;
   public:
     MEDLOADER_EXPORT bool renumberEntitiesLyingOnMesh(const std::string& meshName, const std::vector<int>& oldCode, const std::vector<int>& newCode, const DataArrayInt *renumO2N, MEDFileFieldGlobsReal& glob);
-    MEDLOADER_EXPORT std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeField1TSWithoutSDA> > splitDiscretizations() const;
+    MEDLOADER_EXPORT std::vector< MCAuto<MEDFileAnyTypeField1TSWithoutSDA> > splitDiscretizations() const;
+    MEDLOADER_EXPORT std::vector< MCAuto<MEDFileAnyTypeField1TSWithoutSDA> > splitMultiDiscrPerGeoTypes() const;
     MEDLOADER_EXPORT int keepOnlySpatialDiscretization(TypeOfField tof, std::vector< std::pair<int,int> >& its);
+    MEDLOADER_EXPORT int keepOnlyGaussDiscretization(std::size_t idOfDisc, std::vector< std::pair<int,int> >& its);
   public:
     MEDLOADER_EXPORT void allocNotFromFile(int newNbOfTuples);
     MEDLOADER_EXPORT bool allocIfNecessaryTheArrayToReceiveDataFromFile();
-    MEDLOADER_EXPORT void loadOnlyStructureOfDataRecursively(med_idt fid, const MEDFileFieldNameScope& nasc);
+    MEDLOADER_EXPORT void loadOnlyStructureOfDataRecursively(med_idt fid, const MEDFileFieldNameScope& nasc, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     MEDLOADER_EXPORT void loadBigArraysRecursively(med_idt fid, const MEDFileFieldNameScope& nasc);
     MEDLOADER_EXPORT void loadBigArraysRecursivelyIfNecessary(med_idt fid, const MEDFileFieldNameScope& nasc);
-    MEDLOADER_EXPORT void loadStructureAndBigArraysRecursively(med_idt fid, const MEDFileFieldNameScope& nasc);
+    MEDLOADER_EXPORT void loadStructureAndBigArraysRecursively(med_idt fid, const MEDFileFieldNameScope& nasc, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     MEDLOADER_EXPORT void unloadArrays();
     MEDLOADER_EXPORT void writeLL(med_idt fid, const MEDFileWritable& opts, const MEDFileFieldNameScope& nasc) const;
   protected:
@@ -528,7 +555,7 @@ namespace ParaMEDMEM
     int addNewEntryIfNecessary(const MEDCouplingMesh *mesh);
     void updateData(int newLgth, const std::vector< std::pair<int,int> >& oldStartStops);
   protected:
-    std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileFieldPerMesh > > _field_per_mesh;
+    std::vector< MCAuto< MEDFileFieldPerMesh > > _field_per_mesh;
     int _iteration;
     int _order;
     double _dt;
@@ -544,16 +571,34 @@ namespace ParaMEDMEM
 
   class MEDFileIntField1TSWithoutSDA;
 
+  template<class T>
+  class MEDFileField1TSTemplateWithoutSDA : public MEDFileAnyTypeField1TSWithoutSDA
+  {
+  protected:
+    MEDFileField1TSTemplateWithoutSDA(const std::string& fieldName, int csit, int iteration, int order):MEDFileAnyTypeField1TSWithoutSDA(fieldName,csit,iteration,order) { }
+    MEDFileField1TSTemplateWithoutSDA():MEDFileAnyTypeField1TSWithoutSDA() { }
+  public:
+    MEDLOADER_EXPORT void setArray(DataArray *arr);
+    MEDLOADER_EXPORT DataArray *createNewEmptyDataArrayInstance() const;
+    MEDLOADER_EXPORT typename Traits<T>::ArrayType *getOrCreateAndGetArrayTemplate();
+    MEDLOADER_EXPORT typename Traits<T>::ArrayType const *getOrCreateAndGetArrayTemplate() const;
+    MEDLOADER_EXPORT typename Traits<T>::ArrayType *getUndergroundDataArrayTemplate() const;
+    MEDLOADER_EXPORT DataArray *getOrCreateAndGetArray();
+    MEDLOADER_EXPORT const DataArray *getOrCreateAndGetArray() const;
+    MEDLOADER_EXPORT DataArray *getUndergroundDataArray() const;
+    MEDLOADER_EXPORT void aggregate(const typename std::vector< typename MLFieldTraits<T>::F1TSWSDAType const * >& f1tss, const std::vector< std::vector< std::pair<int,int> > >& dts);
+  protected:
+    MCAuto< typename Traits<T>::ArrayType > _arr;
+  };
+
   /*!
    * SDA is for Shared Data Arrays such as profiles.
    */
-  class MEDFileField1TSWithoutSDA : public MEDFileAnyTypeField1TSWithoutSDA
+  class MEDFileField1TSWithoutSDA : public MEDFileField1TSTemplateWithoutSDA<double>
   {
   public:
     MEDLOADER_EXPORT const char *getTypeStr() const;
-    MEDLOADER_EXPORT DataArray *getUndergroundDataArray() const;
     MEDLOADER_EXPORT DataArray *getUndergroundDataArrayExt(std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
-    MEDLOADER_EXPORT DataArrayDouble *getUndergroundDataArrayDouble() const;
     MEDLOADER_EXPORT DataArrayDouble *getUndergroundDataArrayDoubleExt(std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
     MEDLOADER_EXPORT std::vector< std::vector<DataArrayDouble *> > getFieldSplitedByType2(const std::string& mname, std::vector<INTERP_KERNEL::NormalizedCellType>& types, std::vector< std::vector<TypeOfField> >& typesF, std::vector< std::vector<std::string> >& pfls, std::vector< std::vector<std::string> >& locs) const;
     MEDLOADER_EXPORT static void CheckMeshDimRel(int meshDimRelToMax);
@@ -563,16 +608,8 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT MEDFileField1TSWithoutSDA();
     MEDLOADER_EXPORT MEDFileField1TSWithoutSDA(const std::string& fieldName, int csit, int iteration, int order, const std::vector<std::string>& infos);
     MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *shallowCpy() const;
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *deepCpy() const;
-    MEDLOADER_EXPORT void setArray(DataArray *arr);
-    MEDLOADER_EXPORT DataArray *createNewEmptyDataArrayInstance() const;
-    MEDLOADER_EXPORT DataArray *getOrCreateAndGetArray();
-    MEDLOADER_EXPORT const DataArray *getOrCreateAndGetArray() const;
-    MEDLOADER_EXPORT DataArrayDouble *getOrCreateAndGetArrayDouble();
-    MEDLOADER_EXPORT const DataArrayDouble *getOrCreateAndGetArrayDouble() const;
+    MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *deepCopy() const;
     MEDLOADER_EXPORT MEDFileIntField1TSWithoutSDA *convertToInt() const;
-  protected:
-    MEDCouplingAutoRefCountObjectPtr< DataArrayDouble > _arr;
   public:
     static const char TYPE_STR[];
   };
@@ -580,29 +617,19 @@ namespace ParaMEDMEM
   /*!
    * SDA is for Shared Data Arrays such as profiles.
    */
-  class MEDFileIntField1TSWithoutSDA : public MEDFileAnyTypeField1TSWithoutSDA
+  class MEDFileIntField1TSWithoutSDA : public MEDFileField1TSTemplateWithoutSDA<int>
   {
   public:
     MEDLOADER_EXPORT MEDFileIntField1TSWithoutSDA();
     MEDLOADER_EXPORT static MEDFileIntField1TSWithoutSDA *New(const std::string& fieldName, int csit, int iteration, int order, const std::vector<std::string>& infos);
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *deepCpy() const;
+    MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *deepCopy() const;
     MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *shallowCpy() const;
     MEDLOADER_EXPORT const char *getTypeStr() const;
-    MEDLOADER_EXPORT DataArray *getUndergroundDataArray() const;
     MEDLOADER_EXPORT DataArray *getUndergroundDataArrayExt(std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
-    MEDLOADER_EXPORT void setArray(DataArray *arr);
-    MEDLOADER_EXPORT DataArray *createNewEmptyDataArrayInstance() const;
-    MEDLOADER_EXPORT DataArray *getOrCreateAndGetArray();
-    MEDLOADER_EXPORT const DataArray *getOrCreateAndGetArray() const;
-    MEDLOADER_EXPORT DataArrayInt *getOrCreateAndGetArrayInt();
-    MEDLOADER_EXPORT const DataArrayInt *getOrCreateAndGetArrayInt() const;
-    MEDLOADER_EXPORT DataArrayInt *getUndergroundDataArrayInt() const;
     MEDLOADER_EXPORT DataArrayInt *getUndergroundDataArrayIntExt(std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
     MEDLOADER_EXPORT MEDFileField1TSWithoutSDA *convertToDouble() const;
   protected:
     MEDFileIntField1TSWithoutSDA(const std::string& fieldName, int csit, int iteration, int order, const std::vector<std::string>& infos);
-  protected:
-    MEDCouplingAutoRefCountObjectPtr< DataArrayInt > _arr;
   public:
     MEDLOADER_EXPORT static const char TYPE_STR[];
   };
@@ -614,14 +641,14 @@ namespace ParaMEDMEM
   {
   protected:
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS();
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const std::string& fileName, bool loadAll);
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const std::string& fileName, const std::string& fieldName, bool loadAll);
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll);
+    MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms);
+    MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll, const MEDFileMeshes *ms);
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS(const MEDFileAnyTypeField1TSWithoutSDA& other, bool shallowCopyOfContent);
     MEDLOADER_EXPORT static MEDFileAnyTypeField1TS *BuildNewInstanceFromContent(MEDFileAnyTypeField1TSWithoutSDA *c, const std::string& fileName);
-    MEDLOADER_EXPORT static MEDFileAnyTypeField1TSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, bool loadAll);
-    MEDLOADER_EXPORT static MEDFileAnyTypeField1TSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, const std::string& fieldName, bool loadAll);
-    MEDLOADER_EXPORT static MEDFileAnyTypeField1TSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll);
+    MEDLOADER_EXPORT static MEDFileAnyTypeField1TSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDLOADER_EXPORT static MEDFileAnyTypeField1TSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms);
+    MEDLOADER_EXPORT static MEDFileAnyTypeField1TSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll, const MEDFileMeshes *ms);
     MEDLOADER_EXPORT void writeLL(med_idt fid) const;
     // direct forwarding to MEDFileAnyTypeField1TSWithoutSDA instance _content
   public:
@@ -652,6 +679,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT void setInfo(const std::vector<std::string>& infos);
     MEDLOADER_EXPORT const std::vector<std::string>& getInfo() const;
     MEDLOADER_EXPORT std::vector<std::string>& getInfo();
+    MEDLOADER_EXPORT bool presenceOfMultiDiscPerGeoType() const;
     MEDLOADER_EXPORT std::vector<TypeOfField> getTypesOfFieldAvailable() const;
     MEDLOADER_EXPORT std::vector< std::vector<std::pair<int,int> > > getFieldSplitedByType(const std::string& mname, std::vector<INTERP_KERNEL::NormalizedCellType>& types, std::vector< std::vector<TypeOfField> >& typesF,
         std::vector< std::vector<std::string> >& pfls, std::vector< std::vector<std::string> >& locs) const;
@@ -664,9 +692,10 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT void loadArraysIfNecessary();
     MEDLOADER_EXPORT void unloadArrays();
     MEDLOADER_EXPORT void unloadArraysWithoutDataLoss();
-    MEDLOADER_EXPORT std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileAnyTypeField1TS > > splitComponents() const;
-    MEDLOADER_EXPORT std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileAnyTypeField1TS > > splitDiscretizations() const;
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TS *deepCpy() const;
+    MEDLOADER_EXPORT std::vector< MCAuto< MEDFileAnyTypeField1TS > > splitComponents() const;
+    MEDLOADER_EXPORT std::vector< MCAuto< MEDFileAnyTypeField1TS > > splitDiscretizations() const;
+    MEDLOADER_EXPORT std::vector< MCAuto< MEDFileAnyTypeField1TS > > splitMultiDiscrPerGeoTypes() const;
+    MEDLOADER_EXPORT MEDFileAnyTypeField1TS *deepCopy() const;
     MEDLOADER_EXPORT int copyTinyInfoFrom(const MEDCouplingFieldDouble *field, const DataArray *arr);
     MEDLOADER_EXPORT virtual MEDFileAnyTypeField1TS *shallowCpy() const = 0;
   public:
@@ -685,12 +714,14 @@ namespace ParaMEDMEM
   public:
     MEDLOADER_EXPORT static int LocateField2(med_idt fid, const std::string& fileName, int fieldIdCFormat, bool checkFieldId, std::string& fieldName, med_field_type& typcha, std::vector<std::string>& infos, std::string& dtunitOut);
     MEDLOADER_EXPORT static int LocateField(med_idt fid, const std::string& fileName, const std::string& fieldName, int& posCFormat, med_field_type& typcha, std::vector<std::string>& infos, std::string& dtunitOut);
+  public:
+    MEDLOADER_EXPORT virtual MEDFileAnyTypeField1TS *extractPart(const std::map<int, MCAuto<DataArrayInt> >& extractDef, MEDFileMesh *mm) const = 0;
   public:
     MEDLOADER_EXPORT virtual med_field_type getMEDFileFieldType() const = 0;
     MEDLOADER_EXPORT MEDFileAnyTypeField1TSWithoutSDA *contentNotNullBase();
     MEDLOADER_EXPORT const MEDFileAnyTypeField1TSWithoutSDA *contentNotNullBase() const;
   protected:
-    MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeField1TSWithoutSDA> _content;
+    MCAuto<MEDFileAnyTypeField1TSWithoutSDA> _content;
   };
 
   class MEDFileIntField1TS;
@@ -708,6 +739,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT static MEDFileField1TS *New();
     MEDLOADER_EXPORT MEDFileIntField1TS *convertToInt(bool isDeepCpyGlobs=true) const;
     //
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *field(const MEDFileMesh *mesh) const;
     MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevel(TypeOfField type, int meshDimRelToMax, int renumPol=0) const;
     MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtTopLevel(TypeOfField type, int renumPol=0) const;
     MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int meshDimRelToMax, const MEDFileMesh *mesh, int renumPol=0) const;
@@ -726,16 +758,19 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT std::vector< std::vector<DataArrayDouble *> > getFieldSplitedByType2(const std::string& mname, std::vector<INTERP_KERNEL::NormalizedCellType>& types, std::vector< std::vector<TypeOfField> >& typesF,
         std::vector< std::vector<std::string> >& pfls, std::vector< std::vector<std::string> >& locs) const;
   public:
-    MEDLOADER_EXPORT static void SetDataArrayDoubleInField(MEDCouplingFieldDouble *f, MEDCouplingAutoRefCountObjectPtr<DataArray>& arr);
-    MEDLOADER_EXPORT static DataArrayDouble *ReturnSafelyDataArrayDouble(MEDCouplingAutoRefCountObjectPtr<DataArray>& arr);
+    MEDLOADER_EXPORT static void SetDataArrayDoubleInField(MEDCouplingFieldDouble *f, MCAuto<DataArray>& arr);
+    MEDLOADER_EXPORT static DataArrayDouble *ReturnSafelyDataArrayDouble(MCAuto<DataArray>& arr);
+  public:
+    MEDLOADER_EXPORT MEDFileField1TS *extractPart(const std::map<int, MCAuto<DataArrayInt> >& extractDef, MEDFileMesh *mm) const;
   private:
     med_field_type getMEDFileFieldType() const { return MED_FLOAT64; }
     const MEDFileField1TSWithoutSDA *contentNotNull() const;
     MEDFileField1TSWithoutSDA *contentNotNull();
   private:
-    MEDFileField1TS(const std::string& fileName, bool loadAll);
-    MEDFileField1TS(const std::string& fileName, const std::string& fieldName, bool loadAll);
-    MEDFileField1TS(const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll);
+    ~MEDFileField1TS() { }
+    MEDFileField1TS(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileField1TS(const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileField1TS(const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll, const MEDFileMeshes *ms);
     MEDFileField1TS(const MEDFileField1TSWithoutSDA& other, bool shallowCopyOfContent);
     MEDFileField1TS();
   };
@@ -751,27 +786,33 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT MEDFileField1TS *convertToDouble(bool isDeepCpyGlobs=true) const;
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS *shallowCpy() const;
     //
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevel(TypeOfField type, int meshDimRelToMax, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtTopLevel(TypeOfField type, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int meshDimRelToMax, const MEDFileMesh *mesh, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, const MEDCouplingMesh *mesh, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevelOld(TypeOfField type, const std::string& mname, int meshDimRelToMax, DataArrayInt* &arrOut, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *field(const MEDFileMesh *mesh) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldAtLevel(TypeOfField type, int meshDimRelToMax, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldAtTopLevel(TypeOfField type, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldOnMeshAtLevel(TypeOfField type, int meshDimRelToMax, const MEDFileMesh *mesh, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldOnMeshAtLevel(TypeOfField type, const MEDCouplingMesh *mesh, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldAtLevelOld(TypeOfField type, const std::string& mname, int meshDimRelToMax, int renumPol=0) const;
     MEDLOADER_EXPORT DataArrayInt *getFieldWithProfile(TypeOfField type, int meshDimRelToMax, const MEDFileMesh *mesh, DataArrayInt *&pfl) const;
     //
-    MEDLOADER_EXPORT void setFieldNoProfileSBT(const MEDCouplingFieldDouble *field, const DataArrayInt *arrOfVals);
-    MEDLOADER_EXPORT void setFieldProfile(const MEDCouplingFieldDouble *field, const DataArrayInt *arrOfVals, const MEDFileMesh *mesh, int meshDimRelToMax, const DataArrayInt *profile);
+    MEDLOADER_EXPORT void setFieldNoProfileSBT(const MEDCouplingFieldInt *field);
+    MEDLOADER_EXPORT void setFieldProfile(const MEDCouplingFieldInt *field, const MEDFileMesh *mesh, int meshDimRelToMax, const DataArrayInt *profile);
     MEDLOADER_EXPORT DataArrayInt *getUndergroundDataArray() const;
   public:
-    MEDLOADER_EXPORT static DataArrayInt *ReturnSafelyDataArrayInt(MEDCouplingAutoRefCountObjectPtr<DataArray>& arr);
+    MEDLOADER_EXPORT static DataArrayInt *ReturnSafelyDataArrayInt(MCAuto<DataArray>& arr);
+    MEDLOADER_EXPORT static MCAuto<MEDCouplingFieldInt> SetDataArrayDoubleInIntField(MEDCouplingFieldDouble *f, MCAuto<DataArray>& arr);
+    MEDLOADER_EXPORT static MCAuto<MEDCouplingFieldDouble> ConvertFieldIntToFieldDouble(const MEDCouplingFieldInt *f);
+  public:
+    MEDLOADER_EXPORT MEDFileIntField1TS *extractPart(const std::map<int, MCAuto<DataArrayInt> >& extractDef, MEDFileMesh *mm) const;
   private:
     med_field_type getMEDFileFieldType() const { return MED_INT32; }
     const MEDFileIntField1TSWithoutSDA *contentNotNull() const;
     MEDFileIntField1TSWithoutSDA *contentNotNull();
   private:
+    ~MEDFileIntField1TS() { }
     MEDFileIntField1TS();
-    MEDFileIntField1TS(const std::string& fileName, bool loadAll);
-    MEDFileIntField1TS(const std::string& fileName, const std::string& fieldName, bool loadAll);
-    MEDFileIntField1TS(const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll);
+    MEDFileIntField1TS(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileIntField1TS(const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileIntField1TS(const std::string& fileName, const std::string& fieldName, int iteration, int order, bool loadAll, const MEDFileMeshes *ms);
     MEDFileIntField1TS(const MEDFileIntField1TSWithoutSDA& other, bool shallowCopyOfContent);
   };
 
@@ -780,20 +821,22 @@ namespace ParaMEDMEM
   protected:
     MEDFileAnyTypeFieldMultiTSWithoutSDA();
     MEDFileAnyTypeFieldMultiTSWithoutSDA(const std::string& fieldName);
-    MEDFileAnyTypeFieldMultiTSWithoutSDA(med_idt fid, int fieldId, bool loadAll);
-    MEDFileAnyTypeFieldMultiTSWithoutSDA(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll);
+    MEDFileAnyTypeFieldMultiTSWithoutSDA(med_idt fid, int fieldId, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
+    MEDFileAnyTypeFieldMultiTSWithoutSDA(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
   public:
     MEDLOADER_EXPORT std::size_t getHeapMemorySizeWithoutChildren() const;
     MEDLOADER_EXPORT std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTSWithoutSDA *deepCpy() const;
-    MEDLOADER_EXPORT virtual std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeFieldMultiTSWithoutSDA> > splitComponents() const;
-    MEDLOADER_EXPORT virtual std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeFieldMultiTSWithoutSDA> > splitDiscretizations() const;
+    MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTSWithoutSDA *deepCopy() const;
+    MEDLOADER_EXPORT virtual std::vector< MCAuto<MEDFileAnyTypeFieldMultiTSWithoutSDA> > splitComponents() const;
+    MEDLOADER_EXPORT virtual std::vector< MCAuto<MEDFileAnyTypeFieldMultiTSWithoutSDA> > splitDiscretizations() const;
+    MEDLOADER_EXPORT virtual std::vector< MCAuto<MEDFileAnyTypeFieldMultiTSWithoutSDA> > splitMultiDiscrPerGeoTypes() const;
     MEDLOADER_EXPORT virtual const char *getTypeStr() const = 0;
     MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTSWithoutSDA *shallowCpy() const = 0;
     MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTSWithoutSDA *createNew() const = 0;
     MEDLOADER_EXPORT virtual MEDFileAnyTypeField1TSWithoutSDA *createNew1TSWithoutSDAEmptyInstance() const = 0;
     MEDLOADER_EXPORT virtual void checkCoherencyOfType(const MEDFileAnyTypeField1TSWithoutSDA *f1ts) const = 0;
     MEDLOADER_EXPORT const std::vector<std::string>& getInfo() const;
+    MEDLOADER_EXPORT bool presenceOfMultiDiscPerGeoType() const;
     MEDLOADER_EXPORT void setInfo(const std::vector<std::string>& info);
     MEDLOADER_EXPORT int getTimeStepPos(int iteration, int order) const;
     MEDLOADER_EXPORT const MEDFileAnyTypeField1TSWithoutSDA& getTimeStepEntry(int iteration, int order) const;
@@ -813,7 +856,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT int getPosGivenTime(double time, double eps=1e-8) const;
     MEDLOADER_EXPORT std::vector< std::pair<int,int> > getIterations() const;
     MEDLOADER_EXPORT std::vector< std::pair<int,int> > getTimeSteps(std::vector<double>& ret1) const;
-    MEDLOADER_EXPORT void pushBackTimeStep(MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeField1TSWithoutSDA>& tse);
+    MEDLOADER_EXPORT void pushBackTimeStep(MCAuto<MEDFileAnyTypeField1TSWithoutSDA>& tse);
     MEDLOADER_EXPORT void synchronizeNameScope();
     MEDLOADER_EXPORT void simpleRepr(int bkOffset, std::ostream& oss, int fmtsId) const;
     MEDLOADER_EXPORT int getNonEmptyLevels(int iteration, int order, const std::string& mname, std::vector<int>& levs) const;
@@ -824,7 +867,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT DataArray *getUndergroundDataArray(int iteration, int order) const;
     MEDLOADER_EXPORT DataArray *getUndergroundDataArrayExt(int iteration, int order, std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
     MEDLOADER_EXPORT bool renumberEntitiesLyingOnMesh(const std::string& meshName, const std::vector<int>& oldCode, const std::vector<int>& newCode, const DataArrayInt *renumO2N, MEDFileFieldGlobsReal& glob);
-    MEDLOADER_EXPORT void loadStructureOrStructureAndBigArraysRecursively(med_idt fid, int nbPdt, med_field_type fieldTyp, bool loadAll);
+    MEDLOADER_EXPORT void loadStructureOrStructureAndBigArraysRecursively(med_idt fid, int nbPdt, med_field_type fieldTyp, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     MEDLOADER_EXPORT void writeLL(med_idt fid, const MEDFileWritable& opts) const;
     MEDLOADER_EXPORT void loadBigArraysRecursively(med_idt fid, const MEDFileFieldNameScope& nasc);
     MEDLOADER_EXPORT void loadBigArraysRecursivelyIfNecessary(med_idt fid, const MEDFileFieldNameScope& nasc);
@@ -838,7 +881,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT std::vector<std::string> getLocsReallyUsedMulti2() const;
     MEDLOADER_EXPORT void changePflsRefsNamesGen2(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
     MEDLOADER_EXPORT void changeLocsRefsNamesGen2(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
-    MEDLOADER_EXPORT void setIteration(int i, MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeField1TSWithoutSDA> ts);
+    MEDLOADER_EXPORT void setIteration(int i, MCAuto<MEDFileAnyTypeField1TSWithoutSDA> ts);
   protected:
     virtual med_field_type getMEDFileFieldType() const = 0;
     void copyTinyInfoFrom(const MEDCouplingFieldDouble *field, const DataArray *arr);
@@ -847,7 +890,7 @@ namespace ParaMEDMEM
     void checkThatNbOfCompoOfTSMatchThis() const;
   protected:
     std::vector<std::string> _infos;
-    std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeField1TSWithoutSDA> > _time_steps;
+    std::vector< MCAuto<MEDFileAnyTypeField1TSWithoutSDA> > _time_steps;
   };
 
   class MEDFileIntFieldMultiTSWithoutSDA;
@@ -855,8 +898,8 @@ namespace ParaMEDMEM
   class MEDFileFieldMultiTSWithoutSDA : public MEDFileAnyTypeFieldMultiTSWithoutSDA
   {
   public:
-    MEDLOADER_EXPORT static MEDFileFieldMultiTSWithoutSDA *New(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll);
-    MEDLOADER_EXPORT MEDFileFieldMultiTSWithoutSDA(med_idt fid, int fieldId, bool loadAll);
+    MEDLOADER_EXPORT static MEDFileFieldMultiTSWithoutSDA *New(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
+    MEDLOADER_EXPORT MEDFileFieldMultiTSWithoutSDA(med_idt fid, int fieldId, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     MEDLOADER_EXPORT const char *getTypeStr() const;
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTSWithoutSDA *shallowCpy() const;
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTSWithoutSDA *createNew() const;
@@ -864,7 +907,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT MEDFileIntFieldMultiTSWithoutSDA *convertToInt() const;
   protected:
     MEDFileFieldMultiTSWithoutSDA(const std::string& fieldName);
-    MEDFileFieldMultiTSWithoutSDA(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll);
+    MEDFileFieldMultiTSWithoutSDA(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     med_field_type getMEDFileFieldType() const { return MED_FLOAT64; }
     MEDFileAnyTypeField1TSWithoutSDA *createNew1TSWithoutSDAEmptyInstance() const;
     void checkCoherencyOfType(const MEDFileAnyTypeField1TSWithoutSDA *f1ts) const;
@@ -875,15 +918,15 @@ namespace ParaMEDMEM
   class MEDFileIntFieldMultiTSWithoutSDA : public MEDFileAnyTypeFieldMultiTSWithoutSDA
   {
   public:
-    MEDLOADER_EXPORT static MEDFileIntFieldMultiTSWithoutSDA *New(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll);
-    MEDLOADER_EXPORT MEDFileIntFieldMultiTSWithoutSDA(med_idt fid, int fieldId, bool loadAll);
+    MEDLOADER_EXPORT static MEDFileIntFieldMultiTSWithoutSDA *New(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
+    MEDLOADER_EXPORT MEDFileIntFieldMultiTSWithoutSDA(med_idt fid, int fieldId, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     MEDLOADER_EXPORT const char *getTypeStr() const;
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTSWithoutSDA *shallowCpy() const;
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTSWithoutSDA *createNew() const;
     MEDLOADER_EXPORT MEDFileFieldMultiTSWithoutSDA *convertToDouble() const;
   protected:
     MEDFileIntFieldMultiTSWithoutSDA(const std::string& fieldName);
-    MEDFileIntFieldMultiTSWithoutSDA(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll);
+    MEDFileIntFieldMultiTSWithoutSDA(med_idt fid, const std::string& fieldName, med_field_type fieldTyp, const std::vector<std::string>& infos, int nbOfStep, const std::string& dtunit, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
     med_field_type getMEDFileFieldType() const { return MED_INT32; }
     MEDFileAnyTypeField1TSWithoutSDA *createNew1TSWithoutSDAEmptyInstance() const;
     void checkCoherencyOfType(const MEDFileAnyTypeField1TSWithoutSDA *f1ts) const;
@@ -900,12 +943,12 @@ namespace ParaMEDMEM
   {
   protected:
     MEDFileAnyTypeFieldMultiTS();
-    MEDFileAnyTypeFieldMultiTS(const std::string& fileName, bool loadAll);
-    MEDFileAnyTypeFieldMultiTS(const std::string& fileName, const std::string& fieldName, bool loadAll);
+    MEDFileAnyTypeFieldMultiTS(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileAnyTypeFieldMultiTS(const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities=0);
     MEDFileAnyTypeFieldMultiTS(const MEDFileAnyTypeFieldMultiTSWithoutSDA& other, bool shallowCopyOfContent);
     static MEDFileAnyTypeFieldMultiTS *BuildNewInstanceFromContent(MEDFileAnyTypeFieldMultiTSWithoutSDA *c, const std::string& fileName);
-    static MEDFileAnyTypeFieldMultiTSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, bool loadAll);
-    static MEDFileAnyTypeFieldMultiTSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, const std::string& fieldName, bool loadAll);
+    static MEDFileAnyTypeFieldMultiTSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    static MEDFileAnyTypeFieldMultiTSWithoutSDA *BuildContentFrom(med_idt fid, const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
   public:
     MEDLOADER_EXPORT static MEDFileAnyTypeFieldMultiTS *New(const std::string& fileName, bool loadAll=true);
     MEDLOADER_EXPORT static MEDFileAnyTypeFieldMultiTS *New(const std::string& fileName, const std::string& fieldName, bool loadAll=true);
@@ -917,9 +960,10 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT void writeLL(med_idt fid) const;
     MEDLOADER_EXPORT std::size_t getHeapMemorySizeWithoutChildren() const;
     MEDLOADER_EXPORT std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTS *deepCpy() const;
-    MEDLOADER_EXPORT std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileAnyTypeFieldMultiTS > > splitComponents() const;
-    MEDLOADER_EXPORT std::vector< MEDCouplingAutoRefCountObjectPtr< MEDFileAnyTypeFieldMultiTS > > splitDiscretizations() const;
+    MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTS *deepCopy() const;
+    MEDLOADER_EXPORT std::vector< MCAuto< MEDFileAnyTypeFieldMultiTS > > splitComponents() const;
+    MEDLOADER_EXPORT std::vector< MCAuto< MEDFileAnyTypeFieldMultiTS > > splitDiscretizations() const;
+    MEDLOADER_EXPORT std::vector< MCAuto< MEDFileAnyTypeFieldMultiTS > > splitMultiDiscrPerGeoTypes() const;
     MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTS *shallowCpy() const = 0;
     MEDLOADER_EXPORT virtual void checkCoherencyOfType(const MEDFileAnyTypeField1TS *f1ts) const = 0;
     //
@@ -927,7 +971,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS *getTimeStep(int iteration, int order) const;
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS *getTimeStepGivenTime(double time, double eps=1e-8) const;
     MEDLOADER_EXPORT static std::vector< std::vector<MEDFileAnyTypeFieldMultiTS *> > SplitIntoCommonTimeSeries(const std::vector<MEDFileAnyTypeFieldMultiTS *>& vectFMTS);
-    MEDLOADER_EXPORT static std::vector< std::vector<MEDFileAnyTypeFieldMultiTS *> > SplitPerCommonSupport(const std::vector<MEDFileAnyTypeFieldMultiTS *>& vectFMTS, const MEDFileMesh *mesh, std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileFastCellSupportComparator> >& fsc);
+    MEDLOADER_EXPORT static std::vector< std::vector<MEDFileAnyTypeFieldMultiTS *> > SplitPerCommonSupport(const std::vector<MEDFileAnyTypeFieldMultiTS *>& vectFMTS, const MEDFileMesh *mesh, std::vector< MCAuto<MEDFileFastCellSupportComparator> >& fsc);
     MEDLOADER_EXPORT static int CheckSupportAcrossTime(MEDFileAnyTypeFieldMultiTS *f0, MEDFileAnyTypeFieldMultiTS *f1, const MEDFileMesh *mesh, TypeOfField& tof0, TypeOfField& tof1);
   public:// direct forwarding to MEDFileField1TSWithoutSDA instance _content
     MEDLOADER_EXPORT std::string getName() const;
@@ -947,6 +991,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT std::vector< std::pair<int,int> > getTimeSteps(std::vector<double>& ret1) const;
     MEDLOADER_EXPORT std::vector< std::pair<int,int> > getIterations() const;
     MEDLOADER_EXPORT void pushBackTimeSteps(const std::vector<MEDFileAnyTypeField1TS *>& f1ts);
+    MEDLOADER_EXPORT void pushBackTimeSteps(MEDFileAnyTypeFieldMultiTS *fmts);
     MEDLOADER_EXPORT void pushBackTimeStep(MEDFileAnyTypeField1TS *f1ts);
     MEDLOADER_EXPORT void synchronizeNameScope();
     MEDLOADER_EXPORT int getPosOfTimeStep(int iteration, int order) const;
@@ -954,12 +999,17 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTSIterator *iterator();
     MEDLOADER_EXPORT bool changeMeshNames(const std::vector< std::pair<std::string,std::string> >& modifTab);
     MEDLOADER_EXPORT const std::vector<std::string>& getInfo() const;
+    MEDLOADER_EXPORT bool presenceOfMultiDiscPerGeoType() const;
     MEDLOADER_EXPORT void setInfo(const std::vector<std::string>& info);
     MEDLOADER_EXPORT int getNumberOfComponents() const;
     MEDLOADER_EXPORT int getNonEmptyLevels(int iteration, int order, const std::string& mname, std::vector<int>& levs) const;
     MEDLOADER_EXPORT std::vector< std::vector<TypeOfField> > getTypesOfFieldAvailable() const;
     MEDLOADER_EXPORT std::vector< std::vector< std::pair<int,int> > > getFieldSplitedByType(int iteration, int order, const std::string& mname, std::vector<INTERP_KERNEL::NormalizedCellType>& types, std::vector< std::vector<TypeOfField> >& typesF, std::vector< std::vector<std::string> >& pfls, std::vector< std::vector<std::string> >& locs) const;
-    MEDLOADER_EXPORT MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeFieldMultiTSWithoutSDA> getContent();
+    MEDLOADER_EXPORT MCAuto<MEDFileAnyTypeFieldMultiTSWithoutSDA> getContent();
+  public:
+    MEDLOADER_EXPORT virtual MEDFileAnyTypeFieldMultiTS *buildNewEmpty() const = 0;
+    MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTS *extractPart(const std::map<int, MCAuto<DataArrayInt> >& extractDef, MEDFileMesh *mm) const;
+    MEDLOADER_EXPORT static MCAuto<MEDFileAnyTypeFieldMultiTS> Aggregate(const std::vector<const MEDFileAnyTypeFieldMultiTS *>& fmtss, const std::vector< std::vector< std::pair<int,int> > >& dts);
   public:
     MEDLOADER_EXPORT std::vector<std::string> getPflsReallyUsed() const;
     MEDLOADER_EXPORT std::vector<std::string> getLocsReallyUsed() const;
@@ -971,9 +1021,9 @@ namespace ParaMEDMEM
     MEDFileAnyTypeFieldMultiTSWithoutSDA *contentNotNullBase();
     const MEDFileAnyTypeFieldMultiTSWithoutSDA *contentNotNullBase() const;
   private:
-    static std::vector< std::vector<MEDFileAnyTypeFieldMultiTS *> > SplitPerCommonSupportNotNodesAlg(const std::vector<MEDFileAnyTypeFieldMultiTS *>& vectFMTS, const MEDFileMesh *mesh, std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileFastCellSupportComparator> >& cmps);
+    static std::vector< std::vector<MEDFileAnyTypeFieldMultiTS *> > SplitPerCommonSupportNotNodesAlg(const std::vector<MEDFileAnyTypeFieldMultiTS *>& vectFMTS, const MEDFileMesh *mesh, std::vector< MCAuto<MEDFileFastCellSupportComparator> >& cmps);
   protected:
-    MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeFieldMultiTSWithoutSDA> _content;
+    MCAuto<MEDFileAnyTypeFieldMultiTSWithoutSDA> _content;
   };
 
   class MEDFileIntFieldMultiTS;
@@ -988,14 +1038,16 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT static MEDFileFieldMultiTS *New(const std::string& fileName, bool loadAll=true);
     MEDLOADER_EXPORT static MEDFileFieldMultiTS *New(const std::string& fileName, const std::string& fieldName, bool loadAll=true);
     MEDLOADER_EXPORT static MEDFileFieldMultiTS *New(const MEDFileFieldMultiTSWithoutSDA& other, bool shallowCopyOfContent);
+    MEDLOADER_EXPORT static MEDFileFieldMultiTS *LoadSpecificEntities(const std::string& fileName, const std::string& fieldName, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> >& entities, bool loadAll=true);
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTS *shallowCpy() const;
     MEDLOADER_EXPORT void checkCoherencyOfType(const MEDFileAnyTypeField1TS *f1ts) const;
     MEDLOADER_EXPORT MEDFileIntFieldMultiTS *convertToInt(bool isDeepCpyGlobs=true) const;
     //
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TS *getTimeStepAtPos(int pos) const;
+    MEDLOADER_EXPORT MEDFileField1TS *getTimeStepAtPos(int pos) const;
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS *getTimeStep(int iteration, int order) const;
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS *getTimeStepGivenTime(double time, double eps=1e-8) const;
     //
+    MEDLOADER_EXPORT MEDCouplingFieldDouble *field(int iteration, int order, const MEDFileMesh *mesh) const;
     MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevel(TypeOfField type, int iteration, int order, int meshDimRelToMax, int renumPol=0) const;
     MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtTopLevel(TypeOfField type, int iteration, int order, int renumPol=0) const;
     MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int iteration, int order, int meshDimRelToMax, const MEDFileMesh *mesh, int renumPol=0) const;
@@ -1008,14 +1060,17 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT std::vector< std::vector<DataArrayDouble *> > getFieldSplitedByType2(int iteration, int order, const std::string& mname, std::vector<INTERP_KERNEL::NormalizedCellType>& types, std::vector< std::vector<TypeOfField> >& typesF, std::vector< std::vector<std::string> >& pfls, std::vector< std::vector<std::string> >& locs) const;
     MEDLOADER_EXPORT DataArrayDouble *getUndergroundDataArray(int iteration, int order) const;
     MEDLOADER_EXPORT DataArrayDouble *getUndergroundDataArrayExt(int iteration, int order, std::vector< std::pair<std::pair<INTERP_KERNEL::NormalizedCellType,int>,std::pair<int,int> > >& entries) const;
+  public:
+    MEDLOADER_EXPORT MEDFileFieldMultiTS *buildNewEmpty() const;
   private:
     const MEDFileFieldMultiTSWithoutSDA *contentNotNull() const;
     MEDFileFieldMultiTSWithoutSDA *contentNotNull();
   private:
+    ~MEDFileFieldMultiTS() { }
     MEDFileFieldMultiTS();
     MEDFileFieldMultiTS(const MEDFileFieldMultiTSWithoutSDA& other, bool shallowCopyOfContent);
-    MEDFileFieldMultiTS(const std::string& fileName, bool loadAll);
-    MEDFileFieldMultiTS(const std::string& fileName, const std::string& fieldName, bool loadAll);
+    MEDFileFieldMultiTS(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileFieldMultiTS(const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities=0);
   };
 
   /*!
@@ -1028,30 +1083,35 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT static MEDFileIntFieldMultiTS *New(const std::string& fileName, bool loadAll=true);
     MEDLOADER_EXPORT static MEDFileIntFieldMultiTS *New(const std::string& fileName, const std::string& fieldName, bool loadAll=true);
     MEDLOADER_EXPORT static MEDFileIntFieldMultiTS *New(const MEDFileIntFieldMultiTSWithoutSDA& other, bool shallowCopyOfContent);
+    MEDLOADER_EXPORT static MEDFileIntFieldMultiTS *LoadSpecificEntities(const std::string& fileName, const std::string& fieldName, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> >& entities, bool loadAll=true);
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTS *shallowCpy() const;
     MEDLOADER_EXPORT void checkCoherencyOfType(const MEDFileAnyTypeField1TS *f1ts) const;
-    MEDLOADER_EXPORT MEDFileAnyTypeField1TS *getTimeStepAtPos(int pos) const;
+    MEDLOADER_EXPORT MEDFileIntField1TS *getTimeStepAtPos(int pos) const;
     MEDLOADER_EXPORT MEDFileFieldMultiTS *convertToDouble(bool isDeepCpyGlobs=true) const;
     //
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevel(TypeOfField type, int iteration, int order, int meshDimRelToMax, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtTopLevel(TypeOfField type, int iteration, int order, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int iteration, int order, int meshDimRelToMax, const MEDFileMesh *mesh, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldOnMeshAtLevel(TypeOfField type, int iteration, int order, const MEDCouplingMesh *mesh, DataArrayInt* &arrOut, int renumPol=0) const;
-    MEDLOADER_EXPORT MEDCouplingFieldDouble *getFieldAtLevelOld(TypeOfField type, int iteration, int order, const std::string& mname, int meshDimRelToMax, DataArrayInt* &arrOut, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *field(int iteration, int order, const MEDFileMesh *mesh) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldAtLevel(TypeOfField type, int iteration, int order, int meshDimRelToMax, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldAtTopLevel(TypeOfField type, int iteration, int order, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldOnMeshAtLevel(TypeOfField type, int iteration, int order, int meshDimRelToMax, const MEDFileMesh *mesh, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldOnMeshAtLevel(TypeOfField type, int iteration, int order, const MEDCouplingMesh *mesh, int renumPol=0) const;
+    MEDLOADER_EXPORT MEDCouplingFieldInt *getFieldAtLevelOld(TypeOfField type, int iteration, int order, const std::string& mname, int meshDimRelToMax, int renumPol=0) const;
     MEDLOADER_EXPORT DataArrayInt *getFieldWithProfile(TypeOfField type, int iteration, int order, int meshDimRelToMax, const MEDFileMesh *mesh, DataArrayInt *&pfl) const;
     //
-    MEDLOADER_EXPORT void appendFieldNoProfileSBT(const MEDCouplingFieldDouble *field, const DataArrayInt *arrOfVals);
-    MEDLOADER_EXPORT void appendFieldProfile(const MEDCouplingFieldDouble *field, const DataArrayInt *arrOfVals, const MEDFileMesh *mesh, int meshDimRelToMax, const DataArrayInt *profile);
+    MEDLOADER_EXPORT void appendFieldNoProfileSBT(const MEDCouplingFieldInt *field);
+    MEDLOADER_EXPORT void appendFieldProfile(const MEDCouplingFieldInt *field, const MEDFileMesh *mesh, int meshDimRelToMax, const DataArrayInt *profile);
     //
     MEDLOADER_EXPORT DataArrayInt *getUndergroundDataArray(int iteration, int order) const;
+  public:
+    MEDLOADER_EXPORT MEDFileIntFieldMultiTS *buildNewEmpty() const;
   private:
     const MEDFileIntFieldMultiTSWithoutSDA *contentNotNull() const;
     MEDFileIntFieldMultiTSWithoutSDA *contentNotNull();
   private:
+    ~MEDFileIntFieldMultiTS() { }
     MEDFileIntFieldMultiTS();
     MEDFileIntFieldMultiTS(const MEDFileIntFieldMultiTSWithoutSDA& other, bool shallowCopyOfContent);
-    MEDFileIntFieldMultiTS(const std::string& fileName, bool loadAll);
-    MEDFileIntFieldMultiTS(const std::string& fileName, const std::string& fieldName, bool loadAll);
+    MEDFileIntFieldMultiTS(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms);
+    MEDFileIntFieldMultiTS(const std::string& fileName, const std::string& fieldName, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities=0);
   };
 
   class MEDFileAnyTypeFieldMultiTSIterator
@@ -1061,7 +1121,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT ~MEDFileAnyTypeFieldMultiTSIterator();
     MEDLOADER_EXPORT MEDFileAnyTypeField1TS *nextt();
   private:
-    MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeFieldMultiTS> _fmts;
+    MCAuto<MEDFileAnyTypeFieldMultiTS> _fmts;
     int _iter_id;
     int _nb_iter;
   };
@@ -1076,9 +1136,11 @@ namespace ParaMEDMEM
   public:
     MEDLOADER_EXPORT static MEDFileFields *New();
     MEDLOADER_EXPORT static MEDFileFields *New(const std::string& fileName, bool loadAll=true);
+    MEDLOADER_EXPORT static MEDFileFields *LoadPartOf(const std::string& fileName, bool loadAll=true, const MEDFileMeshes *ms=0);
+    MEDLOADER_EXPORT static MEDFileFields *LoadSpecificEntities(const std::string& fileName, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> >& entities, bool loadAll=true);
     MEDLOADER_EXPORT std::size_t getHeapMemorySizeWithoutChildren() const;
     MEDLOADER_EXPORT std::vector<const BigMemoryObject *> getDirectChildrenWithNull() const;
-    MEDLOADER_EXPORT MEDFileFields *deepCpy() const;
+    MEDLOADER_EXPORT MEDFileFields *deepCopy() const;
     MEDLOADER_EXPORT MEDFileFields *shallowCpy() const;
     MEDLOADER_EXPORT void write(const std::string& fileName, int mode) const;
     MEDLOADER_EXPORT void writeLL(med_idt fid) const;
@@ -1111,6 +1173,8 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT void destroyFieldsAtPos2(int bg, int end, int step);
     MEDLOADER_EXPORT bool changeMeshNames(const std::vector< std::pair<std::string,std::string> >& modifTab);
     MEDLOADER_EXPORT bool renumberEntitiesLyingOnMesh(const std::string& meshName, const std::vector<int>& oldCode, const std::vector<int>& newCode, const DataArrayInt *renumO2N);
+  public:
+    MEDLOADER_EXPORT MEDFileFields *extractPart(const std::map<int, MCAuto<DataArrayInt> >& extractDef, MEDFileMesh *mm) const;
   public:
     MEDLOADER_EXPORT std::vector<std::string> getPflsReallyUsed() const;
     MEDLOADER_EXPORT std::vector<std::string> getLocsReallyUsed() const;
@@ -1119,10 +1183,11 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT void changePflsRefsNamesGen(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
     MEDLOADER_EXPORT void changeLocsRefsNamesGen(const std::vector< std::pair<std::vector<std::string>, std::string > >& mapOfModif);
   private:
+    ~MEDFileFields() { }
     MEDFileFields();
-    MEDFileFields(const std::string& fileName, bool loadAll);
+    MEDFileFields(const std::string& fileName, bool loadAll, const MEDFileMeshes *ms, const std::vector< std::pair<TypeOfField,INTERP_KERNEL::NormalizedCellType> > *entities);
   private:
-    std::vector< MEDCouplingAutoRefCountObjectPtr<MEDFileAnyTypeFieldMultiTSWithoutSDA> > _fields;
+    std::vector< MCAuto<MEDFileAnyTypeFieldMultiTSWithoutSDA> > _fields;
   };
 
   class MEDFileFieldsIterator
@@ -1132,7 +1197,7 @@ namespace ParaMEDMEM
     MEDLOADER_EXPORT ~MEDFileFieldsIterator();
     MEDLOADER_EXPORT MEDFileAnyTypeFieldMultiTS *nextt();
   private:
-    MEDCouplingAutoRefCountObjectPtr<MEDFileFields> _fs;
+    MCAuto<MEDFileFields> _fs;
     int _iter_id;
     int _nb_iter;
   };