Hi Ufuk, I can think of two potential fixes:
- Use the vtkCPProcessor:: Initialize(vtkMPICommunicatorOpaqueComm& comm) method to initialize each process with the proper MPI communicator. Note that vtkMPICommunicatorOpaqueComm is defined in vtkMPICommunicator.cxx. A similar example to this is available in the Examples/Catalyst/MPISubCommunicatorExample directory. - Call vtkCPProcessor::Initialize() on all processes with your global communicator and then create a vtkMPIController partitioned the way you want and set that to be the "global" communicator through vtkMPIController::SetGlobalController(). Please let us know if either of these methods work for you. Also, what code are you working on and is it a publicly available code? If you show your implementation I may have some in-depth suggestions for improvements. Best, Andy On Fri, Jun 17, 2016 at 4:17 AM, <u.utku.turunco...@be.itu.edu.tr> wrote: > Hi All, > > I was working on the issue recently and i am very close to having > prototype code but i had some difficulties in initialization of the > co-processing component with coprocessorinitializewithpython call. In my > case, two model components and adaptor have its own processing source (or > MPI_COMM_WORLD). For example, MPI processor 0, 1, 2, 3 are used by 1st > model, 4, 5, 6, 7 are used by 2nd model code and 8, 9, 10, 11 is used by > adaptor. The code basically handles transferring the grid information and > data to adaptor. So, the problem is that if i try to call my custom > coprocessorinitializewithpython call in adaptor (only in 8, 9, 10, 11) > then it hangs in g_coprocessor->Initialize(); (see code at the end of the > mail) step but if i call coprocessorinitializewithpython in the main code > that uses all the available processor (between 0 and 11) and it runs > without any problem. It seems that there is a restriction in the ParaView > side (expecially vtkCPProcessor::Initialize() that can be found in > CoProcessing/Catalyst/vtkCPProcessor.cxx) but i am not sure. Do you have > any suggestion about that? Do you think that is it possible to fix it > easily. Of corse the adaptor code could use all the processor but it is > better to have its own dedicated resource that might have GPU support in > those specific servers or processors. I am relatively new to VTK and it > might be difficult for me to fix it and i need your guidance to start. > > Best Regards, > > --ufuk > > vtkCPProcessor* g_coprocessor; > > extern "C" void my_coprocessorinitializewithpython_(const char* > pythonScriptName, const char strarr[][255], int *size) { > if (pythonScriptName != NULL) { > if (!g_coprocessor) { > g_coprocessor = vtkCPProcessor::New(); > g_coprocessor->Initialize(); > vtkSmartPointer<vtkCPPythonScriptPipeline> pipeline = > vtkSmartPointer<vtkCPPythonScriptPipeline>::New(); > pipeline->Initialize(pythonScriptName); > g_coprocessor->AddPipeline(pipeline); > //pipeline->FastDelete(); > } > > if (!g_coprocessorData) { > g_coprocessorData = vtkCPDataDescription::New(); > // must be input port for all model components and for all dimensions > for (int i = 0; i < *size; i++) { > g_coprocessorData->AddInput(strarr[i]); > std::cout << "adding input port [" << i << "] = " << strarr[i] << > std::endl; > } > } > } > } > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview >
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview