|Message: Re: Multithreaded App hangs in just one thread||Not Logged In (login)|
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Hello Dr. Dotti,
Thank you for your reply.
I am running Geant4 v10.01_p02. The application is for Medical Physics research, and consists of a parameterised photon source (custom derived class similar to G4GPS) being transported through a voxelized geometry.
The multithreading is set in the main portion as:
> #ifdef G4MULTITHREADED > G4cout << "Running multithreaded.\n"; > G4MTRunManager *runManager=new G4MTRunManager; > G4int number_of_cores = G4Threading::G4GetNumberOfCores(); > G4cout << "Number of cores/threads begin used: " > << number_of_cores << " of " > << G4Threading::G4GetNumberOfCores() > << std::endl; > runManager->SetNumberOfThreads(G4int(number_of_cores/2)); >#endif
to utilize half the available cores.
The voxelization is implemented via nested parameterisation. The relevant EM physics is just EM standard option 3
Please let me know if there are any additional details I can provide.
Thank you, Ming
On Mon, 23 May 2016 18:14:36 GMT, Andrea Dotti wrote:
> Hello, this is a possible indication of an issue in the application, > like an infinite loop. But there is not enough information to give you a > possible solution: which version of G4 are you using? What type of > application are you running? How do you distribute work on the cluster? > > Andrea >
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