The Archives
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08.01.09send std::string with mpiThe idea is to send the size of the string first and then allocate the storage on the reciever. Here is an example with broadcast. string s = "before"; int size = 0; if (myRank == 0) { s = "after"; size = s.size(); } BroadCast(&size,1); if (myRank != 0) s.resize(size); BroadCast(s.data(),size);
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08.01.09Delphi and mpi in 4 stepsDownload and install MPICH2 Download mpi.pas from lazarus site and put it in your project. http://wiki.lazarus.freepascal.org/MPICH Comment out any code that gives error in MPI.pas (Lazarus pascal is a little bit different than Delphi object pascal) Write your code! program HelloWorld1; uses MPI; var myid: integer; begin MPI_Init(nil,nil); MPI_Comm_rank(MPI_COMM_WORLD,@myid); writeln('id=',myid); MPI_Finalize; end.