==> en dernier ressort, lourd
================================================================================
-Essai a API SMDS a peu près constante
+Essai a API SMDS a peu pres constante
=====================================
SMDS_Mesh
SMDS_MeshVolume: SMDS_MeshCell
-SMDS_VolumeOfNodes: SMDS_MeshVolume
- const SMDS_MeshNode **myNodes; --> A SUPPRIMER, utiliser myID
- int myNbNodes; --> A SUPPRIMER
+SMDS_VolumeOfNodes: SMDS_MeshVolume --> Garder temporairement, utilisation dans StdMesher et SMDS_VolumeTool
+ const SMDS_MeshNode **myNodes; --> Couteux
+ int myNbNodes; --> ""
+
+SMDS_VolumeVtkNodes: SMDS_MeshVolume --> Utiliser systematiquement dans SMDS,
+ --> IMPLEMENTER.
+
SMDS_MeshElementIDFactory: SMDS_MeshNodeIDFactory
vector<int> myIDElements; // index = ID client, value = ID vtk --> A SUPPRIMER, ne sert que dans SMDS_MeshElementIDFactory
vector<int> myVtkIndex; // index = ID vtk, value = ID client --> A REPORTER dans SMDS_Mesh
+
+
+
========= TODO ============
enlever vtkId de SMDS_MeshCell, utiliser SMDS_MeshElementIDFactory.
ajouter ID dans SMDS_Mesh::createTriangle
verifier ID dans SMDS_Mesh::Find*OrCreate
-========================
+===================================================
occupation memoire cube 100*100*100 sans affichage
+NOTES:
+- sur Debian Sarge 64 bits, les mesures malloc_stat() semblent coherentes
+ avec une mesure externe globale(recherche du passage en swap du process).
+- sur Ubuntu 9.10 64 bits, les mesures malloc_stat() donnent des resultats bizarres (surestimation ?),
+ mais la mesure avec l'outil KDE de surveillance systeme est OK avec la recherche du swap.
+
+
+Reference : V513 Debian Sarge 64 bits: --> 463 - 33 = 430 Mo
+-------------------------------------
+Total (incl. mmap):
+system bytes = 43757568
+in use bytes = 32909584 = 33M
+max mmap regions = 41
+max mmap bytes = 16371712
+----
+Total (incl. mmap):
+system bytes = 464670720
+in use bytes = 463105120 = 463M
+max mmap regions = 47
+max mmap bytes = 28188672
+
+Debian Sarge 64 bits, vtkUnstructuredGrid nodes et hexa, 4 janvier 2010 --> 512 - 41 = 471M
+-----------------------------------
+
+Total (incl. mmap):
+system bytes = 52133888
+in use bytes = 41340320 : 41M
+max mmap regions = 72
+max mmap bytes = 24625152
+----
+Total (incl. mmap):
+system bytes = 520560640
+in use bytes = 518735584 : 512M
+max mmap regions = 88
+max mmap bytes = 198385664
+
+idem avec pool SMDS_MeshNodes --> 483 -33 = 450M
+-----------------------------
+Total (incl. mmap):
+system bytes = 43696128
+in use bytes = 32915184 : 33M
+max mmap regions = 41
+max mmap bytes = 16371712
+----
+Total (incl. mmap):
+system bytes = 484806656
+in use bytes = 482980992 : 483M
+max mmap regions = 58
+max mmap bytes = 184557568
+
+idem ci-dessus + pool SMDS_VolumeVtkNodes --> 475 -33 = 442M (git: add ObjectPool.hxx)
+-----------------------------------------
+
+Total (incl. mmap):
+system bytes = 43200512
+in use bytes = 32908576 : 33M
+max mmap regions = 41
+max mmap bytes = 16371712
+----
+Total (incl. mmap):
+system bytes = 478068736
+in use bytes = 475144400 : 475M
+max mmap regions = 59
+max mmap bytes = 184692736
+
+remplacement SMDS_PositionPtr: (boost::shared_ptr<SMDS_Position> --> SMDS_Position*) --> 436 - 35 = 401M (git SMDS_Position)
+------------------------------------------------------------------------------------
+Total (incl. mmap):
+system bytes = 45408256
+in use bytes = 35097680 : 35M
+max mmap regions = 47
+max mmap bytes = 18116608
+----
+Total (incl. mmap):
+system bytes = 438935552
+in use bytes = 436116560 : 436M
+max mmap regions = 65
+max mmap bytes = 186437632
+
+simplification SMDS_SpacePosition (pas de double[3]) --> 418 -33 = 385M (git SMDS_SpacePosition)
+----------------------------------------------------
+Total (incl. mmap):
+system bytes = 42582016
+in use bytes = 32883552 : 33M
+max mmap regions = 41
+max mmap bytes = 16371712
+----
+Total (incl. mmap):
+system bytes = 421728256
+in use bytes = 418378000 : 418M
+max mmap regions = 58
+max mmap bytes = 183640064
+
+sizeof(SMDS_MeshElement) 16
+sizeof(SMDS_MeshNode) 24
+sizeof(SMDS_MeshCell) 24
+sizeof(SMDS_VolumeVtkNodes) 24
+sizeof(SMDS_Position) 16
+sizeof(SMDS_SpacePosition) 16
+
+impact d'un int en plus dans SMDS_MeshElement --> 426 - 33 = 393M
+---------------------------------------------
+
+sizeof(SMDS_MeshElement) 24
+sizeof(SMDS_MeshNode) 32 --> on retrouve bien les 8M
+sizeof(SMDS_MeshCell) 24
+sizeof(SMDS_VolumeVtkNodes) 24
+sizeof(SMDS_Position) 16
+sizeof(SMDS_SpacePosition) 16
+
+Total (incl. mmap):
+system bytes = 43192320
+in use bytes = 32681088 : 33M
+max mmap regions = 41
+max mmap bytes = 16371712
+----
+Total (incl. mmap):
+system bytes = 429334528
+in use bytes = 426424576 : 426M
+max mmap regions = 59
+max mmap bytes = 184692736
+
+remplacement std::set par std::vector dans SMESHDS_SubMesh --> 347 - 35 = 312M
+----------------------------------------------------------
+sizeof(SMDS_MeshElement) 24
+sizeof(SMDS_MeshNode) 32
+sizeof(SMDS_MeshCell) 24
+sizeof(SMDS_VolumeVtkNodes) 24
+sizeof(SMDS_Position) 16
+sizeof(SMDS_SpacePosition) 16
+
+Total (incl. mmap):
+system bytes = 45404160
+in use bytes = 35132160 --> 35M
+max mmap regions = 49
+max mmap bytes = 17723392
+----
+Total (incl. mmap):
+system bytes = 349831168
+in use bytes = 346885424 --> 347M
+max mmap regions = 73
+max mmap bytes = 204148736
+
+Ce resultat est coherent avec une recherche de swap sur une machine a 8Go de memoire:
+Cube a 270**3 mailles (~20M mailles) --> 6.2 Go (idem Debian Sarge et Ubuntu 9.10, 64 bits)
+Le meme avec V5.1.3 --> 14 Go (swap)
-Ubuntu 9.10 64 bits 15/12/2009
-/home/prascle/projets/SALOME/SMESH/BR_SMDS_MEMIMP/SMESH_SRC/src/SMESH/SMESH_Gen.cxx:143
-in use bytes = 32843200
-/home/prascle/projets/SALOME/SMESH/BR_SMDS_MEMIMP/SMESH_SRC/src/SMESH/SMESH_Gen.cxx [294] : VSR - SMESH_Gen::Compute() finished, OK = 1
-in use bytes = 498773760
-delta = 460 Mo (45 Mo de plus que sur Sarge 64 bits ?)
