X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FContainer%2FSALOME_PyNode.py;h=d71e57c447a9043a7b7b684325b33c503a587baa;hb=3ce0546302001755828c8476425a60c6ab61ac92;hp=5a08da8932ec0c35061afb7ca88520012e338fe3;hpb=84aec554c92df19545820a559b76e7a756ef151e;p=modules%2Fkernel.git

diff --git a/src/Container/SALOME_PyNode.py b/src/Container/SALOME_PyNode.py
index 5a08da893..d71e57c44 100644
--- a/src/Container/SALOME_PyNode.py
+++ b/src/Container/SALOME_PyNode.py
@@ -1,5 +1,5 @@
 #  -*- coding: iso-8859-1 -*-
-# Copyright (C) 2007-2020  CEA/DEN, EDF R&D, OPEN CASCADE
+# Copyright (C) 2007-2024  CEA, EDF, OPEN CASCADE
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -29,6 +29,18 @@ import pickle
 import Engines__POA
 import SALOME__POA
 import SALOME
+import logging
+import KernelBasis
+import abc
+import os
+import sys
+from SALOME_ContainerHelper import ScriptExecInfo
+
+MY_CONTAINER_ENTRY_IN_GLBS = "my_container"
+
+MY_PERFORMANCE_LOG_ENTRY_IN_GLBS = "my_log_4_this_session"
+
+MY_KEY_TO_DETECT_FINISH = "neib av tuot"
 
 class Generic(SALOME__POA.GenericObj):
   """A Python implementation of the GenericObj CORBA IDL"""
@@ -53,6 +65,7 @@ class Generic(SALOME__POA.GenericObj):
 
   def __del__(self):
     #print("Destuctor called")
+    pass
 
 class PyNode_i (Engines__POA.PyNode,Generic):
   """The implementation of the PyNode CORBA IDL"""
@@ -65,7 +78,7 @@ class PyNode_i (Engines__POA.PyNode,Generic):
     linecache.cache[nodeName]=0,None,code.split('\n'),nodeName
     ccode=compile(code,nodeName,'exec')
     self.context={}
-    self.context["my_container"] = self.my_container
+    self.context[MY_CONTAINER_ENTRY_IN_GLBS] = self.my_container
     exec(ccode, self.context)
 
   def getContainer(self):
@@ -86,7 +99,7 @@ class PyNode_i (Engines__POA.PyNode,Generic):
     try:
       ccode=compile(code,self.nodeName,'exec')
       exec(ccode, self.context)
-    except:
+    except Exception:
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"","PyScriptNode (%s) : code to be executed \"%s\"" %(self.nodeName,code),0))
 
   def execute(self,funcName,argsin):
@@ -97,23 +110,980 @@ class PyNode_i (Engines__POA.PyNode,Generic):
       argsout=func(*argsin,**kws)
       argsout=pickle.dumps(argsout,-1)
       return argsout
-    except:
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyNode: %s, function: %s" % (self.nodeName,funcName),0))
 
-class PyScriptNode_i (Engines__POA.PyScriptNode,Generic):
+class SenderByte_i(SALOME__POA.SenderByte,Generic):
+  def __init__(self,poa,bytesToSend):
+    Generic.__init__(self,poa)
+    self.bytesToSend = bytesToSend
+
+  def getSize(self):
+    return len(self.bytesToSend)
+
+  def sendPart(self,n1,n2):
+    return self.bytesToSend[n1:n2]
+  
+def IsRemote(hostName):
+    import socket
+    return socket.gethostname() != hostName
+
+def RemoveFileSafe( fileName ):
+    if os.path.exists( fileName ):
+      os.unlink( fileName )
+
+def RetrieveRemoteFileLocallyInSameFileName( remoteHostName, fileName):
+    """ To customize"""
+    dn = os.path.dirname( fileName )
+    import subprocess as sp
+    p = sp.Popen(["scp","{}:{}".format(remoteHostName,fileName),dn])
+    p.communicate()
+
+def DestroyRemotely( remoteHostName, fileName):
+    import subprocess as sp
+    p = sp.Popen(["ssh","-qC","-oStrictHostKeyChecking=no","-oBatchMode=yes",remoteHostName,"rm {}".format( fileName )])
+    p.communicate()
+
+class CopyFileFromRemoteCtxMgr:
+  def __init__(self, hostName, fileName):
+    self._remoteHostName = hostName
+    self._fileName = fileName
+    self._isRemote = IsRemote( hostName )
+
+  def __enter__(self):
+    if not self._isRemote:
+      return
+    dn = os.path.dirname( self._fileName )
+    if not os.path.isdir( dn ):
+      os.mkdir( dn )
+    RetrieveRemoteFileLocallyInSameFileName(self._remoteHostName,self._fileName)
+    
+  def __exit__(self,exctype, exc, tb):
+    if not self._isRemote:
+      return
+    os.unlink( self._fileName )
+  
+class BigFileOnDiskBase(abc.ABC):
+  """
+  Base class in charge of managing 
+  Copy or share of file accross computation Nodes
+  """
+  def __init__(self, fileName):
+    self._file_name = fileName
+
+  def getFileName(self):
+    return self._file_name
+
+  @abc.abstractmethod
+  def get(self, visitor = None):
+    """
+    Method called client side of data.
+    """
+    raise RuntimeError("Not implemented !")
+  
+  @abc.abstractmethod
+  def unlink(self):
+    """
+    Method called client side of data.
+    """
+    raise RuntimeError("Not implemented !")
+
+
+class BigFileOnDiskShare(BigFileOnDiskBase):
+  def __init__(self, fileName):
+    super().__init__( fileName )
+
+  def get(self, visitor = None):
+    return GetObjectFromFile( self._file_name, visitor )
+  
+  def unlink(self):
+    RemoveFileSafe( self._file_name )
+
+class BigFileOnDiskSSDNoShare(BigFileOnDiskBase):
+  def __init__(self, fileName):
+    import socket
+    super().__init__( fileName )
+    # hostname hosting data
+    self._hostname = socket.gethostname()
+
+  def get(self, visitor = None):
+    with CopyFileFromRemoteCtxMgr(self._hostname, self._file_name):
+      return GetObjectFromFile( self._file_name, visitor )
+    
+  def unlink(self):
+    if IsRemote( self._hostname ):
+      DestroyRemotely(self._hostname,self._file_name)
+    else:
+      RemoveFileSafe( self._file_name )
+
+BigFileOnDiskClsFromProtocol = { 0 : BigFileOnDiskShare, 1 : BigFileOnDiskSSDNoShare }
+
+DicoForProxyFile = { }
+
+def GetSizeOfBufferedReader(f):
+  """
+  This method returns in bytes size of a file openned.
+
+  Args:
+  ----
+      f (io.IOBase): buffered reader returned by open
+      
+  Returns
+  -------
+      int: number of bytes
+  """
+  import io
+  pos = f.tell()
+  f.seek(0,io.SEEK_END)
+  pos2 = f.tell()
+  f.seek(pos,io.SEEK_SET)
+  return pos2-pos
+
+def GetObjectFromFile(fname, visitor = None):
+  with open(fname,"rb") as f:
+    if visitor:
+      visitor.setHDDMem( GetSizeOfBufferedReader(f) )
+      visitor.setFileName( fname )
+    obj = pickle.load(f)
+  return obj
+
+def DumpInFile(obj,fname):
+  with open(fname,"wb") as f:
+    f.write( obj )
+
+def IncrRefInFile(fname):
+  """
+  :param fname:
+  :type fname: str
+  """
+  if fname in DicoForProxyFile:
+    DicoForProxyFile[fname] += 1
+  else:
+    DicoForProxyFile[fname] = 2
+  pass
+
+def DecrRefInFile(fname):
+  """
+  :param fname:
+  :type fname: BigFileOnDiskBase
+  """
+  if fname not in DicoForProxyFile:
+    cnt = 1
+  else:
+    cnt = DicoForProxyFile[fname.getFileName()]
+    DicoForProxyFile[fname.getFileName()] -= 1
+    if cnt == 1:
+      del DicoForProxyFile[fname.getFileName()]
+  if cnt == 1:
+    fname.unlink()
+  pass
+
+def GetBigObjectOnDiskThreshold():
+    return KernelBasis.GetBigObjOnDiskThreshold()
+
+def ActivateProxyMecanismOrNot( sizeInByte ):
+  thres = GetBigObjectOnDiskThreshold()
+  if thres == -1:
+    return False
+  else:
+    return sizeInByte > thres
+
+def GetBigObjectDirectory():
+  import os
+  protocol, directory = KernelBasis.GetBigObjOnDiskProtocolAndDirectory()
+  if not directory:
+    raise RuntimeError("An object of size higher than limit detected and no directory specified to dump it in file !")
+  return protocol, os.path.expanduser( os.path.expandvars( directory ) )
+
+def GetBigObjectFileName():
+  """
+  Return a filename in the most secure manner (see tempfile documentation)
+  """
+  import tempfile
+  protocol, directory = GetBigObjectDirectory()
+  with tempfile.NamedTemporaryFile(dir = directory, prefix="mem_", suffix=".pckl") as f:
+    ret = f.name
+  return BigFileOnDiskClsFromProtocol[protocol]( ret )
+
+class BigObjectOnDiskBase:
+  def __init__(self, fileName, objSerialized):
+    """
+    :param fileName: the file used to dump into.
+    :param objSerialized: the object in pickeled form
+    :type objSerialized: bytes
+    """
+    self._filename = fileName
+    # attribute _destroy is here to tell client side or server side
+    # only client side can be with _destroy set to True. server side due to risk of concurrency
+    # so pickled form of self must be done with this attribute set to False.
+    self._destroy = False
+    self.__dumpIntoFile(objSerialized)
+
+  def getDestroyStatus(self):
+    return self._destroy
+
+  def incrRef(self):
+    if self._destroy:
+      IncrRefInFile( self._filename )
+    else:
+      # should never happen !
+      RuntimeError("Invalid call to incrRef !")
+
+  def decrRef(self):
+    if self._destroy:
+      DecrRefInFile( self._filename )
+    else:
+      # should never happen !
+      RuntimeError("Invalid call to decrRef !")
+
+  def unlinkOnDestructor(self):
+    self._destroy = True
+
+  def doNotTouchFile(self):
+    """
+    Method called slave side. The life cycle management of file is client side not slave side.
+    """
+    self._destroy = False
+
+  def __del__(self):
+    if self._destroy:
+      DecrRefInFile( self._filename )
+
+  def getFileName(self):
+    return self._filename
+  
+  def __dumpIntoFile(self, objSerialized):
+    DumpInFile( objSerialized, self._filename.getFileName() )
+
+  def get(self, visitor = None):
+    return self._filename.get(visitor)
+
+  def __float__(self):
+    return float( self.get() )
+    
+  def __int__(self):
+    return int( self.get() )
+    
+  def __str__(self):
+    obj = self.get()
+    if isinstance(obj,str):
+        return obj
+    else:
+        raise RuntimeError("Not a string")
+      
+class BigObjectOnDisk(BigObjectOnDiskBase):
+  def __init__(self, fileName, objSerialized):
+    BigObjectOnDiskBase.__init__(self, fileName, objSerialized)
+    
+class BigObjectOnDiskListElement(BigObjectOnDiskBase):
+  def __init__(self, pos, length, fileName):
+    self._filename = fileName
+    self._destroy = False
+    self._pos = pos
+    self._length = length
+
+  def get(self, visitor = None):
+    fullObj = BigObjectOnDiskBase.get(self, visitor)
+    return fullObj[ self._pos ]
+    
+  def __getitem__(self, i):
+    return self.get()[i]
+
+  def __len__(self):
+    return len(self.get())
+    
+class BigObjectOnDiskSequence(BigObjectOnDiskBase):
+  def __init__(self, length, fileName, objSerialized):
+    BigObjectOnDiskBase.__init__(self, fileName, objSerialized)
+    self._length = length
+
+  def __getitem__(self, i):
+    return BigObjectOnDiskListElement(i, self._length, self.getFileName())
+
+  def __len__(self):
+    return self._length
+
+class BigObjectOnDiskList(BigObjectOnDiskSequence):
+  def __init__(self, length, fileName, objSerialized):
+    BigObjectOnDiskSequence.__init__(self, length, fileName, objSerialized)
+    
+class BigObjectOnDiskTuple(BigObjectOnDiskSequence):
+  def __init__(self, length, fileName, objSerialized):
+    BigObjectOnDiskSequence.__init__(self, length, fileName, objSerialized)
+
+def ProxyfyPickeled( obj, pickleObjInit = None, visitor = None ):
+  """
+  This method return a proxy instance of pickled form of object given in input.
+
+  Args:
+  ----
+      obj (pickelable type) : object to be proxified
+      pickleObjInit (bytes) : Optionnal. Original pickeled form of object to be proxyfied if already computed. If not this method generate it
+
+  Returns
+  -------
+      BigObjectOnDiskBase: proxy instance
+  """
+  pickleObj = pickleObjInit
+  if pickleObj is None:
+    pickleObj = pickle.dumps( obj , pickle.HIGHEST_PROTOCOL )
+  fileName = GetBigObjectFileName()
+  if visitor:
+    visitor.setHDDMem( len(pickleObj) )
+    visitor.setFileName( fileName.getFileName() )
+  if isinstance( obj, list):
+    proxyObj = BigObjectOnDiskList( len(obj), fileName, pickleObj )
+  elif isinstance( obj, tuple):
+    proxyObj = BigObjectOnDiskTuple( len(obj), fileName , pickleObj )
+  else:
+    proxyObj = BigObjectOnDisk( fileName , pickleObj )
+  return proxyObj
+
+def SpoolPickleObject( obj, visitor = None ):
+  import pickle
+  with InOutputObjVisitorCM(visitor) as v:
+    pickleObjInit = pickle.dumps( obj , pickle.HIGHEST_PROTOCOL )
+    if not ActivateProxyMecanismOrNot( len(pickleObjInit) ):
+      return pickleObjInit
+    else:
+      proxyObj = ProxyfyPickeled( obj, pickleObjInit, v.visitor() )
+      pickleProxy = pickle.dumps( proxyObj , pickle.HIGHEST_PROTOCOL )
+      return pickleProxy
+
+from SALOME_ContainerHelper import InOutputObjVisitorCM, InOutputObjVisitor
+
+def UnProxyObjectSimple( obj, visitor = None ):
+  """
+  Method to be called in Remote mode. Alterate the obj _status attribute. 
+  Because the slave process does not participate in the reference counting
+  
+  Args:
+  ----
+      visitor (InOutputObjVisitor): A visitor to keep track of amount of memory on chip and those on HDD
+
+  """
+  with InOutputObjVisitorCM(visitor) as v:
+    logging.debug( "UnProxyObjectSimple {}".format(type(obj)) )
+    if isinstance(obj,BigObjectOnDiskBase):
+      obj.doNotTouchFile()
+      return obj.get( v )
+    elif isinstance( obj, list):
+      retObj = []
+      for elt in obj:
+        retObj.append( UnProxyObjectSimple(elt,v.visitor()) )
+      return retObj
+    else:
+      return obj
+
+def UnProxyObjectSimpleLocal( obj ):
+  """
+  Method to be called in Local mode. Do not alterate the PyObj counter
+  """
+  if isinstance(obj,BigObjectOnDiskBase):
+    return obj.get()
+  elif isinstance( obj, list):
+    retObj = []
+    for elt in obj:
+      retObj.append( UnProxyObjectSimpleLocal(elt) )
+    return retObj
+  else:
+    return obj
+  
+class FileHolder:
+  def __init__(self, fileName):
+    self._filename = fileName
+  @property
+  def filename(self):
+    return self._filename
+  
+class FileDeleter(FileHolder):
+  def __init__(self, fileName):
+    super().__init__( fileName )
+  def __del__(self):
+    import os
+    if os.path.exists( self._filename ):
+      os.unlink( self._filename )
+
+class MonitoringInfo:
+  def __init__(self, pyFileName, intervalInMs, outFileName, pid):
+    self._py_file_name = pyFileName
+    self._interval_in_ms = intervalInMs
+    self._out_file_name = outFileName
+    self._pid = pid
+
+  @property
+  def pyFileName(self):
+    return self._py_file_name
+
+  @property
+  def pid(self):
+    return self._pid
+  
+  @pid.setter
+  def pid(self, value):
+    self._pid = value
+
+  @property
+  def outFileName(self):
+    return self._out_file_name
+  
+  @property
+  def intervalInMs(self):
+    return self._interval_in_ms
+  
+def FileSystemMonitoring(intervalInMs, dirNameToInspect, outFileName = None):
+    """
+    This method loops indefinitely every intervalInMs milliseconds to scan 
+    number of inodes and size of content recursively included into the in input directory.
+
+    Args:
+    ----
+
+    outFileName (str) : name of file inside the results will be written. If None a new file is generated
+
+    See also CPUMemoryMonitoring
+    """
+    global orb
+    import os
+    dirNameToInspect2 = os.path.abspath( os.path.expanduser(dirNameToInspect) )
+    import tempfile
+    import logging
+    import KernelBasis
+    # outFileNameSave stores the content of outFileName during phase of dumping
+    with tempfile.NamedTemporaryFile(prefix="fs_monitor_",suffix=".txt") as f:
+      outFileNameSave = f.name
+    with tempfile.NamedTemporaryFile(prefix="fs_monitor_",suffix=".py") as f:
+      tempPyFile = f.name
+    tempOutFile = outFileName
+    if tempOutFile is None:
+      tempOutFile = "{}.txt".format( os.path.splitext( tempPyFile )[0] )
+    with open(tempPyFile,"w") as f:
+        f.write("""
+import subprocess as sp
+import re
+import os
+import time
+import datetime
+with open("{tempOutFile}","a") as f:
+  f.write( "{{}}\\n".format( "{dirNameToInspect2}" ) )
+  f.write( "{{}}\\n".format( "{intervalInMs}" ) )
+  while(True):
+    nbinodes = -1
+    try:
+      nbinodes = sp.check_output("{{}} | wc -l".format( " ".join(["find","{dirNameToInspect2}"]),  ), shell = True).decode().strip()
+    except:
+      pass
+    szOfDirStr = "fail"
+    try:
+      st = sp.check_output(["du","-sh","{dirNameToInspect2}"]).decode()
+      szOfDirStr = re.split("[\s]+",st)[0]
+    except:
+      pass
+    f.write( "{{}}\\n".format( str( datetime.datetime.now().timestamp() ) ) )
+    f.write( "{{}}\\n".format( str( nbinodes  ) ) )
+    f.write( "{{}}\\n".format( str( szOfDirStr ) ) )
+    f.flush()
+    time.sleep( {intervalInMs} / 1000.0 )
+""".format( **locals()))
+    logging.debug( "File for FS monitoring dump file : {}".format(tempPyFile) )
+    pyFileName = FileDeleter( tempPyFile )
+    if outFileName is None:
+      outFileName = FileDeleter( tempOutFile )
+    else:
+      outFileName = FileHolder(outFileName)
+    return MonitoringInfo(pyFileName, intervalInMs, outFileName, None)
+
+def CPUMemoryMonitoring( intervalInMs, outFileName = None ):
+  """
+  Launch a subprocess monitoring self process.
+  This monitoring subprocess is a python process lauching every intervalInMs ms evaluation of
+  CPU usage and RSS memory of the calling process.
+  Communication between subprocess and self is done by file.
+
+  Args:
+  ----
+    outFileName (str) : name of file inside the results will be written. If None a new file is generated
+
+  See also FileSystemMonitoring
+  """
+  import KernelBasis
+  def BuildPythonFileForCPUPercent( intervalInMs, outFileName):
+    import os
+    import tempfile
+    with tempfile.NamedTemporaryFile(prefix="cpu_mem_monitor_",suffix=".py") as f:
+      tempPyFile = f.name
+    tempOutFile = outFileName
+    if tempOutFile is None:
+      tempOutFile = "{}.txt".format( os.path.splitext( tempPyFile )[0] )
+    pid = os.getpid()
+    with open(tempPyFile,"w") as f:
+      f.write("""import psutil
+pid = {}
+process = psutil.Process( pid )
+def getChargeOf( p ):
+  a,b = p.cpu_percent(), p.memory_info().rss
+  try:
+    for c in p.children():
+      a += c.cpu_percent(interval=0.01) ; b += c.memory_info().rss
+  except:
+    pass
+  return a,b
+import time
+with open("{}","a") as f:
+  f.write( "{{}}\\n".format( "{}" ) )
+  while True:
+    cpu,mem_rss = getChargeOf( process )
+    f.write( "{{}}\\n".format( str( cpu ) ) )
+    f.write( "{{}}\\n".format( str( mem_rss  ) ) )
+    f.flush()
+    time.sleep( {} / 1000.0 )
+""".format(pid, tempOutFile, intervalInMs, intervalInMs))
+    if outFileName is None:
+      autoOutFile = FileDeleter(tempOutFile)
+    else:
+      autoOutFile = FileHolder(tempOutFile)
+    return FileDeleter(tempPyFile),autoOutFile
+  pyFileName, outFileName = BuildPythonFileForCPUPercent( intervalInMs, outFileName )
+  return MonitoringInfo(pyFileName, intervalInMs, outFileName, None)
+
+class GenericPythonMonitoringLauncherCtxMgr:
+    def __init__(self, monitoringParams):
+        """
+        Args:
+        ----
+            monitoringParams (MonitoringInfo)
+        """
+        self._monitoring_params = monitoringParams
+    def __enter__(self):
+        import KernelBasis
+        pid = KernelBasis.LaunchMonitoring(self._monitoring_params.pyFileName.filename)
+        self._monitoring_params.pid = pid
+        return self._monitoring_params
+    
+    def __exit__(self,exctype, exc, tb):
+        StopMonitoring( self._monitoring_params )
+        del self._monitoring_params
+        import gc
+        gc.collect() # force destruction of objects even in raise context
+
+def StopMonitoring( monitoringInfo ):
+  """
+  Kill monitoring subprocess.
+
+  Args:
+  ----
+      monitoringInfo (MonitoringInfo): info returned by LaunchMonitoring
+  """
+  import KernelBasis
+  KernelBasis.StopMonitoring(monitoringInfo.pid)
+
+class CPUMemInfo:
+  def __init__(self, intervalInMs, cpu, mem_rss):
+    """
+    Args:
+    ----
+    intervalInMs (int)
+    cpu (list<float>)  CPU usage
+    mem_rss (list<int>) rss memory usage
+    """
+    self._interval_in_ms = intervalInMs
+    self._data = [(a,b) for a,b in zip(cpu,mem_rss)]
+  def __str__(self):
+    st = """Interval in ms : {self.intervalInMs}
+Data : ${self.data}
+""".format( **locals() )
+    return st
+  @property
+  def intervalInMs(self):
+    return self._interval_in_ms
+  @property
+  def data(self):
+    """
+    list of triplets. First param of pair is cpu usage 
+                      Second param of pair is memory usage
+    """
+    return self._data
+
+def ReadCPUMemInfoInternal( fileName ):
+  intervalInMs = 0
+  cpu = [] ; mem_rss = []
+  if os.path.exists( fileName ):
+    try:
+      with open(fileName, "r") as f:
+        coarseData = [ elt.strip() for elt in f.readlines() ]
+      intervalInMs = int( coarseData[0] )
+      coarseData = coarseData[1:]
+      cpu = [float(elt) for elt in coarseData[::2]]
+      mem_rss = [ int(elt) for elt in coarseData[1::2]]
+    except:
+      pass
+  return CPUMemInfo(intervalInMs,cpu,mem_rss)
+
+def ReadCPUMemInfo( monitoringInfo ):
+  """
+  Retrieve CPU/Mem data of monitoring.
+
+  Args:
+  ----
+      monitoringInfo (MonitoringInfo): info returned by LaunchMonitoring
+  
+  Returns
+  -------
+    CPUMemInfo instance
+  """
+  return ReadCPUMemInfoInternal( monitoringInfo.outFileName.filename )
+
+class InodeSizeInfo:
+  def __init__(self, dirNameMonitored, intervalInMs, timeStamps, nbInodes, volumeOfDir):
+    """
+    Args:
+    ----
+    timeStamps (list<datetimestruct>)
+    nbInodes (list<int>)
+    volumeOfDir (list<str>)
+    """
+    self._dir_name_monitored = dirNameMonitored
+    self._interval_in_ms = intervalInMs
+    self._data = [(t,a,b) for t,a,b in zip(timeStamps,nbInodes,volumeOfDir)]
+  def __str__(self):
+    st = """Filename monitored : {self.dirNameMonitored}
+Interval in ms : ${self.intervalInMs}
+Data : ${self.data}
+""".format( **locals() )
+    return st
+  @property
+  def dirNameMonitored(self):
+    return self._dir_name_monitored
+  @property
+  def intervalInMs(self):
+    return self._interval_in_ms
+  @property
+  def data(self):
+    """
+    list of triplets. First param of triplet is datetimestruct
+                                      Second param of triplet is #inodes.
+                                      Thirst param of triplet is size.
+    """
+    return self._data
+
+def ReadInodeSizeInfoInternal( fileName ):
+  import datetime
+  import os
+  with open(fileName, "r") as f:
+    coarseData = [ elt.strip() for elt in f.readlines() ]
+  dirNameMonitored = coarseData[0] ; intervalInMs = int( coarseData[1] ) ; coarseData = coarseData[2:]
+  tss = [ datetime.datetime.fromtimestamp( float(elt) ) for elt in coarseData[::3] ]
+  nbInodes = [int(elt) for elt in coarseData[1::3]]
+  volumeOfDir = coarseData[2::3]
+  return InodeSizeInfo(dirNameMonitored,intervalInMs,tss,nbInodes,volumeOfDir)
+
+def ReadInodeSizeInfo( monitoringInfo ):
+  """
+  Retrieve nb of inodes and size of monitoring
+
+  Args:
+  ----
+      monitoringInfo (MonitoringInfo): info returned by LaunchMonitoring
+
+  Returns
+  -------
+    InodeSizeInfo
+  """
+  return ReadInodeSizeInfoInternal( monitoringInfo.outFileName.filename )
+
+class SeqByteReceiver:
+  # 2GB limit to trigger split into chunks
+  CHUNK_SIZE = 2000000000
+  def __init__(self,sender):
+    self._obj = sender
+  def __del__(self):
+    self._obj.UnRegister()
+    pass
+  def data(self):
+    size = self._obj.getSize()
+    if size <= SeqByteReceiver.CHUNK_SIZE:
+      return self.fetchOneShot( size )
+    else:
+      return self.fetchByChunks( size )
+  def fetchOneShot(self,size):
+    return self._obj.sendPart(0,size)
+  def fetchByChunks(self,size):
+      """
+      To avoid memory peak parts over 2GB are sent using EFF_CHUNK_SIZE size.
+      """
+      data_for_split_case = bytes(0)
+      EFF_CHUNK_SIZE = SeqByteReceiver.CHUNK_SIZE // 8
+      iStart = 0 ; iEnd = EFF_CHUNK_SIZE
+      while iStart!=iEnd and iEnd <= size:
+        part = self._obj.sendPart(iStart,iEnd)
+        data_for_split_case = bytes(0).join( [data_for_split_case,part] )
+        iStart = iEnd; iEnd = min(iStart + EFF_CHUNK_SIZE,size)
+      return data_for_split_case
+  
+FinalCode = """import pickle
+from SALOME_PyNode import LogOfCurrentExecutionSession,MY_PERFORMANCE_LOG_ENTRY_IN_GLBS
+import CORBA
+import Engines
+orb = CORBA.ORB_init([''])
+codeFileName = "{}"
+inputFileName = "{}"
+outputFileName = "{}"
+outputsKeys = {}
+exec( "{{}} = LogOfCurrentExecutionSession( orb.string_to_object( \\"{}\\" ) )".format(MY_PERFORMANCE_LOG_ENTRY_IN_GLBS) )
+with open(inputFileName,"rb") as f:
+  context = pickle.load( f )
+context[MY_PERFORMANCE_LOG_ENTRY_IN_GLBS] = eval( MY_PERFORMANCE_LOG_ENTRY_IN_GLBS )
+with open(codeFileName,"r") as f:
+  code = f.read()
+# go for execution
+exec( code , context )
+# filter part of context to be exported to father process
+context = dict( [(k,v) for k,v in context.items() if k in outputsKeys] )
+#
+with open(outputFileName,"wb") as f:
+  pickle.dump( context, f )
+"""
+
+class PythonFunctionEvaluatorParams:
+  def __init__(self, mainFileName, codeFileName, inContextFileName, outContextFileName):
+    self._main_filename = mainFileName
+    self._code_filename = codeFileName
+    self._in_context_filename = inContextFileName
+    self._out_context_filename = outContextFileName
+  @property
+  def result(self):
+    import pickle
+    with open(self._out_context_filename,"rb") as f:
+      return pickle.load( f )
+  def destroyOnOK(self):
+    for fileToDestroy in [self._main_filename,self._code_filename,self._in_context_filename,self._out_context_filename]:
+      if os.path.exists( fileToDestroy ):
+        os.unlink( fileToDestroy )
+  def destroyOnKO(self, containerRef):
+     """
+     Called in the context of failure with replay mode activated
+     """
+     for fileToDestroy in [self._out_context_filename]:
+      if os.path.exists( fileToDestroy ):
+        os.unlink( fileToDestroy )
+      # register to container files group associated to the
+      containerRef.addLogFileNameGroup([self._main_filename,self._code_filename,self._in_context_filename])
+  @property
+  def replayCmd(self):
+    return "To replay : ( cd {} && python3 {} )".format(os.path.dirname(self._main_filename),os.path.basename(self._main_filename))
+  
+  @property
+  def cleanOperations(self):
+    import os
+    return "To clean files : ( cd {} && rm {} )".format( os.path.dirname(self._main_filename)," ".join( [os.path.basename(self._main_filename),self._code_filename,self._in_context_filename] ) )
+
+  def strDependingOnReturnCode(self, keepFilesToReplay, returnCode):
+    if returnCode == -1:
+      return f"return with non zero code ({returnCode})"
+    else:
+      banner = 200*"*"
+      if keepFilesToReplay:
+        return f"""return with non zero code ({returnCode})
+{banner}
+Looks like a hard crash as returnCode {returnCode} != 0
+{self.replayCmd}
+{self.cleanOperations}
+{banner}
+"""
+      else:
+        return f"""return with non zero code ({returnCode})
+{banner}
+Looks like a hard crash as returnCode {returnCode} != 0
+{banner}
+"""
+
+def ExecCrashProofGeneric( code, context, outargsname, containerRef, instanceOfLogOfCurrentSession, keepFilesToReplay, closeEyesOnErrorAtExit):
+  """
+  Equivalent of exec(code,context) but executed in a separate subprocess to avoid to make the current process crash.
+  
+  Args:
+  -----
+
+  code (str) : python code to be executed using context
+  context (dict) : context to be used for execution. This context will be updated in accordance with the execution of code.
+  outargsname (list<str>) : list of arguments to be exported 
+  containerRef (Engines.Container) : Container ref (retrieving the Files to created when keepFilesToReplay is set to False)
+  instanceOfLogOfCurrentSession (LogOfCurrentExecutionSession) : instance of LogOfCurrentExecutionSession to build remotely the reference in order to log information
+  keepFilesToReplay (bool) : if True when something goes wrong during execution all the files to replay post mortem case are kept. If False only error is reported but files to replay are destoyed.
+  closeEyesOnErrorAtExit (bool) : if True in case of crash of subprocess, if MY_KEY_TO_DETECT_FINISH is displayed at the end of stdout
+
+  Return:
+  -------
+
+  ScriptExecInfo : instance serverside
+
+  In/Out:
+  -------
+
+  context will be modified by this method. elts in outargsname will be added and their corresponding value coming from evaluation.
+  """
+  import tempfile
+  import pickle
+  import subprocess as sp
+  import CORBA
+  #
+  def IsConsideredAsOKRun( returnCode, closeEyesOnErrorAtExit , stderr ):
+    def StdErrTreatment(closeEyesOnErrorAtExit , stderr):
+      if not closeEyesOnErrorAtExit:
+        return stderr
+      else:
+        return stderr[:-len(MY_KEY_TO_DETECT_FINISH)]
+    if returnCode == 0:
+      return True,StdErrTreatment(closeEyesOnErrorAtExit , stderr)
+    if not closeEyesOnErrorAtExit:
+      return False, stderr
+    if stderr[-len(MY_KEY_TO_DETECT_FINISH):] == MY_KEY_TO_DETECT_FINISH:
+      return True,stderr[:-len(MY_KEY_TO_DETECT_FINISH)]
+    else:
+      return False,stderr
+
+  #
+  def InternalExecResistant( code, context, outargsname):
+    import KernelBasis
+    orb = CORBA.ORB_init([''])
+    iorScriptLog = orb.object_to_string( instanceOfLogOfCurrentSession._remote_handle )#ref ContainerScriptPerfLog_ptr
+    ####
+    EXEC_CODE_FNAME_PXF = "execsafe_"
+    def RetrieveUniquePartFromPfx( fname ):
+      return os.path.splitext( os.path.basename(fname)[len(EXEC_CODE_FNAME_PXF):] )[0]
+    dirForReplayFiles = KernelBasis.GetDirectoryForReplayFiles()
+    if not dirForReplayFiles:
+      raise RuntimeError("You are in context of exec resistant you have to position Directory hosting these files properly")
+    with tempfile.NamedTemporaryFile(dir=dirForReplayFiles,prefix=EXEC_CODE_FNAME_PXF,suffix=".py", mode="w", delete = False) as codeFd:
+      codeFd.write( "{}\n".format( containerRef.get_startup_code() ) )
+      codeFd.write( code )
+      if closeEyesOnErrorAtExit:
+        codeFd.write( """
+import sys
+sys.stderr.write({!r})
+sys.stderr.flush()""".format( MY_KEY_TO_DETECT_FINISH ) )
+      codeFd.flush()
+      codeFileName = os.path.basename( codeFd.name )
+      contextFileName = os.path.join( dirForReplayFiles, "contextsafe_{}.pckl".format( RetrieveUniquePartFromPfx( codeFileName  ) ) )
+      with open(contextFileName,"wb") as contextFd:
+        pickle.dump( context, contextFd)
+      resFileName = os.path.join( dirForReplayFiles, "outcontextsafe_{}.pckl".format( RetrieveUniquePartFromPfx( codeFileName  ) ) )
+      mainExecFileName = os.path.join( dirForReplayFiles, "mainexecsafe_{}.py".format( RetrieveUniquePartFromPfx( codeFileName  ) ) )
+      with open(mainExecFileName,"w") as f:
+        f.write( FinalCode.format( codeFileName, contextFileName, resFileName, outargsname, iorScriptLog ) )
+      for iTry in range( KernelBasis.GetNumberOfRetry() ):
+        if iTry > 0:
+          print( "WARNING : Retry # {}. Following code has generated non zero return code ( {} ). Trying again ... \n{}".format( iTry, returnCode, code ) )
+        p = sp.Popen(["python3", mainExecFileName],cwd = dirForReplayFiles,stdout = sp.PIPE, stderr = sp.PIPE)
+        stdout, stderr = p.communicate()
+        returnCode = p.returncode
+        if returnCode == 0:
+          break
+    return returnCode, stdout, stderr, PythonFunctionEvaluatorParams(mainExecFileName,codeFileName,contextFileName,resFileName)
+  ret = instanceOfLogOfCurrentSession._current_instance
+  returnCode, stdout, stderr, evParams = InternalExecResistant( code, context, outargsname )
+  stdout = stdout.decode()
+  stderr = stderr.decode()
+  sys.stdout.write( stdout ) ; sys.stdout.flush()
+  isOK, stderr = IsConsideredAsOKRun( returnCode, closeEyesOnErrorAtExit , stderr )
+  sys.stderr.write( stderr ) ; sys.stderr.flush()
+  if isOK:
+    pcklData = instanceOfLogOfCurrentSession._remote_handle.getObj()
+    if len(pcklData) > 0:
+      ret = pickle.loads( pcklData )
+    context.update( evParams.result )
+    evParams.destroyOnOK()
+    if returnCode != 0:
+      print( "WARNING : Following code has generated non zero return code ( {} ) but considered as OK\n{}".format( returnCode, code ) )
+    return ret
+  else:
+    if keepFilesToReplay:
+      evParams.destroyOnKO( containerRef )
+    else:
+      evParams.destroyOnOK()
+    raise RuntimeError(f"Subprocess launched {evParams.strDependingOnReturnCode(keepFilesToReplay,returnCode)}stdout :\n{stdout}\nstderr :\n{stderr}")
+
+def ExecCrashProofWithReplay( code, context, outargsname, containerRef, instanceOfLogOfCurrentSession ):
+  return ExecCrashProofGeneric(code, context, outargsname, containerRef, instanceOfLogOfCurrentSession, True, False)
+
+def ExecCrashProofWithoutReplay( code, context, outargsname, containerRef, instanceOfLogOfCurrentSession ):
+  return ExecCrashProofGeneric(code, context, outargsname, containerRef, instanceOfLogOfCurrentSession, False, False)
+
+def ExecCrashProofWithReplayFT( code, context, outargsname, containerRef, instanceOfLogOfCurrentSession ):
+  return ExecCrashProofGeneric(code, context, outargsname, containerRef, instanceOfLogOfCurrentSession, True, True)
+
+def ExecCrashProofWithoutReplayFT( code, context, outargsname, containerRef, instanceOfLogOfCurrentSession ):
+  return ExecCrashProofGeneric(code, context, outargsname, containerRef, instanceOfLogOfCurrentSession, False, True)
+
+def ExecLocal( code, context, outargsname, containerRef, instanceOfLogOfCurrentSession ):
+  exec( code, context )
+  return instanceOfLogOfCurrentSession._current_instance
+
+class LogOfCurrentExecutionSessionAbs(abc.ABC):
+  def __init__(self):
+    self._current_instance = ScriptExecInfo()
+
+  def addInfoOnLevel2(self, key, value):
+    setattr(self._current_instance,key,value)
+
+  @abc.abstractmethod
+  def addFreestyleAndFlush(self, value):
+    raise RuntimeError("Must be overloaded")
+
+class LogOfCurrentExecutionSession(LogOfCurrentExecutionSessionAbs):
+  def __init__(self, handleToCentralizedInst):
+    super().__init__()
+    self._remote_handle = handleToCentralizedInst
+
+  def addFreestyleAndFlush(self, value):
+    self._current_instance.freestyle = value
+    self.finalizeAndPushToMaster()
+
+  def finalizeAndPushToMaster(self):
+    """
+    Voluntary do nothing in case of problem to avoid to trouble execution
+    """
+    try:
+      self._remote_handle.assign( pickle.dumps( self._current_instance ) )
+    except:
+      pass
+
+class LogOfCurrentExecutionSessionStub(LogOfCurrentExecutionSessionAbs):
+  """
+  This class is to stub LogOfCurrentExecutionSession in context of replay where the server (handleToCentralizedInst) has vanished
+  """
+  def __init__(self, handleToCentralizedInst = None):
+    super().__init__()
+  def addFreestyleAndFlush(self, value):
+    pass
+
+class PyScriptNode_Abstract_i(Engines__POA.PyScriptNode,Generic,abc.ABC):
   """The implementation of the PyScriptNode CORBA IDL that executes a script"""
-  def __init__(self, nodeName,code,poa,my_container):
+  def __init__(self, nodeName, code, poa, my_container, logscript):
     """Initialize the node : compilation in the local context"""
     Generic.__init__(self,poa)
     self.nodeName=nodeName
     self.code=code
+    self.my_container_py = my_container
     self.my_container=my_container._container
     linecache.cache[nodeName]=0,None,code.split('\n'),nodeName
     self.ccode=compile(code,nodeName,'exec')
     self.context={}
-    self.context["my_container"] = self.my_container
+    self.context[MY_CONTAINER_ENTRY_IN_GLBS] = self.my_container
+    self._log_script = logscript
+    self._current_execution_session = None
+    sys.stdout.flush() ; sys.stderr.flush() # flush to correctly capture log per execution session
+
+  @abc.abstractmethod
+  def executeNow(self, outargsname):
+    raise RuntimeError("Must be overloaded")
+      
+  def __del__(self):
+    # force removal of self.context. Don t know why it s not done by default
+    self.removeAllVarsInContext()
+    pass
 
   def getContainer(self):
     return self.my_container
@@ -133,16 +1103,29 @@ class PyScriptNode_i (Engines__POA.PyScriptNode,Generic):
     try:
       ccode=compile(code,self.nodeName,'exec')
       exec(ccode, self.context)
-    except:
+    except Exception:
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"","PyScriptNode (%s) : code to be executed \"%s\"" %(self.nodeName,code),0))
 
   def assignNewCompiledCode(self,codeStr):
     try:
       self.code=codeStr
       self.ccode=compile(codeStr,self.nodeName,'exec')
-    except:
+    except Exception:
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"","PyScriptNode.assignNewCompiledCode (%s) : code to be executed \"%s\"" %(self.nodeName,codeStr),0))
 
+  def executeSimple(self, key, val):
+    """
+    Same as execute method except that no pickelization mecanism is implied here. No output is expected
+    """
+    try:
+      self.context.update({ "env" : [(k,v) for k,v in zip(key,val)]})
+      exec(self.ccode,self.context)
+    except Exception:
+      exc_typ,exc_val,exc_fr=sys.exc_info()
+      l=traceback.format_exception(exc_typ,exc_val,exc_fr)
+      print("".join(l)) ; sys.stdout.flush() # print error also in logs of remote container
+      raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode: %s" % (self.nodeName),0))
+    
   def execute(self,outargsname,argsin):
     """Execute the script stored in attribute ccode with pickled args (argsin)"""
     try:
@@ -156,42 +1139,96 @@ class PyScriptNode_i (Engines__POA.PyScriptNode,Generic):
         argsout.append(self.context[arg])
       argsout=pickle.dumps(tuple(argsout),-1)
       return argsout
-    except:
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
+      print("".join(l)) ; sys.stdout.flush() # print error also in logs of remote container
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode: %s, outargsname: %s" % (self.nodeName,outargsname),0))
 
   def executeFirst(self,argsin):
     """ Same than first part of self.execute to reduce memory peak."""
-    import time
+    def ArgInMananger(self,argsin):
+      argsInPy = SeqByteReceiver( argsin )
+      data = argsInPy.data()
+      self.addInfoOnLevel2("inputMem",len(data))
+      _,kws=pickle.loads(data)
+      return kws
     try:
-      _,kws=pickle.loads(argsin)
+      self.beginOfCurrentExecutionSession()
+      self.addTimeInfoOnLevel2("startInputTime")
+      # to force call of SeqByteReceiver's destructor
+      kws = ArgInMananger(self,argsin)
+      vis = InOutputObjVisitor()
+      for elt in kws:
+        # fetch real data if necessary
+        kws[elt] = UnProxyObjectSimple( kws[elt],vis)
+      self.addInfoOnLevel2("inputHDDMem",vis)
       self.context.update(kws)
-    except:
+      self.addTimeInfoOnLevel2("endInputTime")
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
+      print("".join(l)) ; sys.stdout.flush() # print error also in logs of remote container
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode:First %s" % (self.nodeName),0))
 
   def executeSecond(self,outargsname):
     """ Same than second part of self.execute to reduce memory peak."""
+    def executeSecondInternal(monitoringtimeresms):
+      with GenericPythonMonitoringLauncherCtxMgr( CPUMemoryMonitoring( monitoringtimeresms ) ) as monitoringParams:
+        currentInstance = self.executeNow( outargsname )
+        cpumeminfo = ReadCPUMemInfo( monitoringParams )
+      return cpumeminfo, currentInstance
+
+    import sys
     try:
-      exec(self.ccode, self.context)
+      self.addTimeInfoOnLevel2("startExecTime")
+      ##
+      self.addInfoOnLevel2("measureTimeResolution",self.my_container_py.monitoringtimeresms())
+      cpumeminfo, self._current_execution_session._current_instance = executeSecondInternal( self.my_container_py.monitoringtimeresms() )
+      ##
+      self.addInfoOnLevel2("CPUMemDuringExec",cpumeminfo)
+      self.addTimeInfoOnLevel2("endExecTime")
+      self.addTimeInfoOnLevel2("startOutputTime")
       argsout=[]
       for arg in outargsname:
         if arg not in self.context:
           raise KeyError("There is no variable %s in context" % arg)
         argsout.append(self.context[arg])
-      argsout=pickle.dumps(tuple(argsout),-1)
-      return argsout
-    except:
+      ret = [ ]
+      outputMem = 0
+      vis = InOutputObjVisitor()
+      for arg in argsout:
+        # the proxy mecanism is catched here
+        argPickle = SpoolPickleObject( arg, vis )
+        retArg = SenderByte_i( self.poa,argPickle )
+        id_o = self.poa.activate_object(retArg)
+        retObj = self.poa.id_to_reference(id_o)
+        ret.append( retObj._narrow( SALOME.SenderByte ) )
+        outputMem += len(argPickle)
+      self.addInfoOnLevel2("outputMem",outputMem)
+      self.addInfoOnLevel2("outputHDDMem",vis)
+      self.addTimeInfoOnLevel2("endOutputTime")
+      self.endOfCurrentExecutionSession()
+      return ret
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
+      print("".join(l)) ; sys.stdout.flush() # print error also in logs of remote container
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode:Second %s, outargsname: %s" % (self.nodeName,outargsname),0))
 
+  def listAllVarsInContext(self):
+      import re
+      pat = re.compile("^__([a-z]+)__$")
+      return [elt for elt in self.context if not pat.match(elt) and elt != MY_CONTAINER_ENTRY_IN_GLBS]
+      
+  def removeAllVarsInContext(self):
+      for elt in self.listAllVarsInContext():
+        del self.context[elt]
+
   def getValueOfVarInContext(self,varName):
     try:
       return pickle.dumps(self.context[varName],-1)
-    except:
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode: %s" %self.nodeName,0))
@@ -200,7 +1237,7 @@ class PyScriptNode_i (Engines__POA.PyScriptNode,Generic):
   def assignVarInContext(self, varName, value):
     try:
       self.context[varName][0] = pickle.loads(value)
-    except:
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode: %s" %self.nodeName,0))
@@ -209,8 +1246,58 @@ class PyScriptNode_i (Engines__POA.PyScriptNode,Generic):
   def callMethodOnVarInContext(self, varName, methodName, args):
     try:
       return pickle.dumps( getattr(self.context[varName][0],methodName)(*pickle.loads(args)),-1 )
-    except:
+    except Exception:
       exc_typ,exc_val,exc_fr=sys.exc_info()
       l=traceback.format_exception(exc_typ,exc_val,exc_fr)
       raise SALOME.SALOME_Exception(SALOME.ExceptionStruct(SALOME.BAD_PARAM,"".join(l),"PyScriptNode: %s" %self.nodeName,0))
     pass
+
+  def beginOfCurrentExecutionSession(self):
+    self._current_execution_session = LogOfCurrentExecutionSession( self._log_script.addExecutionSession() )
+    self.context[MY_PERFORMANCE_LOG_ENTRY_IN_GLBS] = self._current_execution_session
+  
+  def endOfCurrentExecutionSession(self):
+    self._current_execution_session.finalizeAndPushToMaster()
+    self._current_execution_session = None
+
+  def addInfoOnLevel2(self, key, value):
+    self._current_execution_session.addInfoOnLevel2(key, value)
+      
+  def addTimeInfoOnLevel2(self, key):
+    from datetime import datetime
+    self._current_execution_session.addInfoOnLevel2(key,datetime.now())
+
+class PyScriptNode_i(PyScriptNode_Abstract_i):
+  def __init__(self, nodeName, code, poa, my_container, logscript):
+    super().__init__(nodeName, code, poa, my_container, logscript)
+
+  def executeNow(self, outargsname):
+    return ExecLocal(self.ccode,self.context,outargsname,self.my_container,self._current_execution_session)
+    
+class PyScriptNode_OutOfProcess_i(PyScriptNode_Abstract_i):
+  def __init__(self, nodeName, code, poa, my_container, logscript):
+    super().__init__(nodeName, code, poa, my_container, logscript)
+
+  def executeNow(self, outargsname):
+    return ExecCrashProofWithoutReplay(self.code,self.context,outargsname,self.my_container,self._current_execution_session)
+
+class PyScriptNode_OutOfProcess_Replay_i(PyScriptNode_Abstract_i):
+  def __init__(self, nodeName, code, poa, my_container, logscript):
+    super().__init__(nodeName, code, poa, my_container, logscript)
+
+  def executeNow(self, outargsname):
+    return ExecCrashProofWithReplay(self.code,self.context,outargsname,self.my_container,self._current_execution_session)
+
+class PyScriptNode_OutOfProcess_FT_i(PyScriptNode_Abstract_i):
+  def __init__(self, nodeName, code, poa, my_container, logscript):
+    super().__init__(nodeName, code, poa, my_container, logscript)
+
+  def executeNow(self, outargsname):
+    return ExecCrashProofWithoutReplayFT(self.code,self.context,outargsname,self.my_container,self._current_execution_session)
+
+class PyScriptNode_OutOfProcess_Replay_FT_i(PyScriptNode_Abstract_i):
+  def __init__(self, nodeName, code, poa, my_container, logscript):
+    super().__init__(nodeName, code, poa, my_container, logscript)
+
+  def executeNow(self, outargsname):
+    return ExecCrashProofWithReplayFT(self.code,self.context,outargsname,self.my_container,self._current_execution_session)