G4RootMpiAnalysisManager.cc

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// Author: Ivana Hrivnacova, 21/11/2018 (ivana@ipno.in2p3.fr)
 
#include "G4RootMpiAnalysisManager.hh"
#include "G4RootMpiNtupleFileManager.hh"
#include "G4RootMpiNtupleManager.hh"
#include "G4RootMpiPNtupleManager.hh"
#include "G4AnalysisUtilities.hh"
 
#include <tools/impi>
 
using namespace G4Analysis;
 
//_____________________________________________________________________________
G4RootMpiAnalysisManager* G4RootMpiAnalysisManager::Instance()
{
  return fgInstance;
}
 
//_____________________________________________________________________________
G4RootMpiAnalysisManager::G4RootMpiAnalysisManager(G4bool /*isMaster*/)
 : G4RootAnalysisManager()
{
  fgInstance = this;
 
  // Reset the ntuple file manager
  fNtupleFileManager.reset();
 
  // Ntuple file manager
  fNtupleFileManager = std::make_shared<G4RootMpiNtupleFileManager>(fState);
  SetNtupleFileManager(fNtupleFileManager);
  fNtupleFileManager->SetFileManager(fFileManager);
  fNtupleFileManager->SetBookingManager(fNtupleBookingManager);
}
 
//_____________________________________________________________________________
G4RootMpiAnalysisManager::~G4RootMpiAnalysisManager()
{
  fgInstance = 0;
}
 
//
// public methods
//
 
//_____________________________________________________________________________
void G4RootMpiAnalysisManager::SetMpiNtupleMerging(tools::impi* impi, 
                                             G4int mpiRank, G4int mpiSize,
                                             G4int nofNtupleFiles)
{
  // G4cout << "SetMpiNtupleMerging: "
  //        << impi << ", "
  //        << mpiRank << ","
  //        << mpiSize << ","
  //        << nofNtupleFiles << G4endl;
 
  std::static_pointer_cast<G4RootMpiNtupleFileManager>(fNtupleFileManager)
    ->SetMpiNtupleMerging(impi, mpiRank, mpiSize, nofNtupleFiles);
}
 
// 
// protected methods
//
 
//_____________________________________________________________________________
G4bool G4RootMpiAnalysisManager::OpenFileImpl(const G4String& fileName)
{
  if ( fNtupleFileManager->GetMergeMode() == G4NtupleMergeMode::kNone )  {
    return G4ToolsAnalysisManager::OpenFileImpl(fileName);
  }
 
  // Create ntuple manager(s)
  // and set it to base class which takes then their ownership
  if ( ! fVNtupleManager ) {
    SetNtupleManager(fNtupleFileManager->CreateNtupleManager());
  }
 
  auto result = true;
 
  // Open file
  // In difference from base class a file is open also on slave ranks
  result &= fFileManager->OpenFile(fileName);
 
  // Open ntuple file(s) and create ntuples from bookings
  result &= fNtupleFileManager->ActionAtOpenFile(fFileManager->GetFullFileName());
 
  return result;
}  
 
//_____________________________________________________________________________
G4bool G4RootMpiAnalysisManager::WriteImpl() 
{
 
  auto result = true;
 
  // Call base class method
  result &= G4ToolsAnalysisManager::WriteImpl();
 
  // Write file also on Slave
  // (skipped in base class)
  if ( fNtupleFileManager->GetMergeMode() == G4NtupleMergeMode::kSlave )  {
    // write all open files
    result &= fFileManager->WriteFiles();
  }
 
  Message(kVL2, "write", "slave files", "", result);
 
  return result;
}
 
//_____________________________________________________________________________
G4bool G4RootMpiAnalysisManager::CloseFileImpl(G4bool reset)
{
// Cannot call base class function, as we need to close files also
// on slave; an option in the base class can be added for this in future
 
  Message(kVL4, "close", "files");
 
  auto result = true;
  if (fVNtupleFileManager) {
    result &= fVNtupleFileManager->ActionAtCloseFile();
  }
 
  // close file also on Slave
  // - the conditoon used in the base class is commented out
  // if ( (fVNtupleFileManager == nullptr) ||
  //      (fVNtupleFileManager->GetMergeMode() != G4NtupleMergeMode::kSlave) )  {
    if ( ! fVFileManager->CloseFiles() ) {
      Warn("Closing files failed", fkClass, "CloseFileImpl");
      result = false;
    }
  // }
 
  // delete empty files
  if ( ! fVFileManager->DeleteEmptyFiles() ) {
    Warn("Deleting empty files failed", fkClass, "CloseFileImpl");
    result = false;
  }
 
  // reset histograms
  if ( reset ) {
    if ( ! Reset() ) {
      Warn("Resetting data failed", fkClass, "CloseFileImpl");
      result = false;
    }
  }
 
  Message(kVL3, "close", "files", "", result);
  G4cout << "### Done G4RootMpiAnalysisManager::CloseFileImpl" << G4endl;
 
  return result;
}