G4MPIToolsManager Class Reference

#include <G4MPIToolsManager.hh>

Public Member Functions
	G4MPIToolsManager (const G4AnalysisManagerState &state, tools::histo::hmpi *hmpi)
virtual	~G4MPIToolsManager ()
template<typename T >
G4bool	Merge (const std::vector< T * > &htVector, const std::vector< G4HnInformation * > &hnVector)

Detailed Description

Definition at line 43 of file G4MPIToolsManager.hh.

Constructor & Destructor Documentation

G4MPIToolsManager()

G4MPIToolsManager::G4MPIToolsManager ( const G4AnalysisManagerState &  state, tools::histo::hmpi *  hmpi  )

inline

Definition at line 46 of file G4MPIToolsManager.hh.

    : fState(state), fHmpi(hmpi) {}

~G4MPIToolsManager()

virtual G4MPIToolsManager::~G4MPIToolsManager ( )

inlinevirtual

Definition at line 49 of file G4MPIToolsManager.hh.

{}

Member Function Documentation

Merge()

template<typename T >

G4bool G4MPIToolsManager::Merge ( const std::vector< T * > &  htVector, const std::vector< G4HnInformation * > &  hnVector  )

inline

Definition at line 175 of file G4MPIToolsManager.hh.

{
  if ( ! htVector.size() ) return true;
 
  // Get number of objects to be sent
  G4int nofActiveT = 0;
  if ( fState.GetIsActivation() ) {
    // only activated histograms will be treated
    for ( G4int i=0; i<G4int(htVector.size()); ++i ) {
      auto activation = hnVector[i]->GetActivation();
      if ( activation ) ++nofActiveT;
    }
  } else {
      nofActiveT = G4int(htVector.size());
  } 
 
  if ( ! nofActiveT ) return true;
 
  G4int commRank;
  if ( ! fHmpi->comm_rank(commRank) ) {
    G4ExceptionDescription description;
    description 
      << "    Failed to get MPI commander rank." << G4endl
      << "    Merging will not be performed.";
    G4Exception("G4H1ToolsManager::Merge",
                "Analysis_W031", JustWarning, description);
    return false;
  }
 
  G4bool finalResult = true;
 
  if ( commRank != fHmpi->rank() ) {
 
#ifdef G4VERBOSE
    if ( fState.GetVerboseL3() ) {
      G4ExceptionDescription description;
      description << "on rank "  << commRank
           << " destination rank: " << fHmpi->rank();
      fState.GetVerboseL4()->Message("mpi send", "Hn|Pn", description);
  }  
#endif
 
    auto result = Send(nofActiveT, htVector, hnVector);
 
    finalResult = result && finalResult;
 
#ifdef G4VERBOSE
    if ( fState.GetVerboseL1() ) {
      G4ExceptionDescription description;
      description << "on rank " << commRank
         << " destination rank: " << fHmpi->rank();
      fState.GetVerboseL1()->Message("send", "Hn|Pn", description);
    }  
#endif
 
  } else {
 
#ifdef G4VERBOSE
    if ( fState.GetVerboseL3() ) {
      G4ExceptionDescription description;
      description << "on rank " << commRank
           << " destination rank: " << fHmpi->rank();
      fState.GetVerboseL4()->Message("mpi wait_histos", "Hn|Pn", description);
    }  
#endif
 
    auto result = Receive(nofActiveT, htVector, hnVector);
 
    finalResult = result && finalResult;
 
#ifdef G4VERBOSE
    if ( fState.GetVerboseL1() ) {
      G4ExceptionDescription description;
      description << "on rank "  << commRank
         << " destination rank: " << fHmpi->rank();
      fState.GetVerboseL1()->Message("mpi wait_histos", "Hn|Pn", description);
    }  
#endif
  }
  return finalResult;
}

Referenced by G4ToolsAnalysisManager::MergeImpl().

---

The documentation for this class was generated from the following file:

• G4MPIToolsManager.hh