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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
David Robertson <robertson@xxxxxxxxxxxxxxxxxx> writes: > Hi, > > I am having a problem with OpenMPI and NetCDF4 Fortran 90 parallel IO. > I'm fairly certain the problem is with NetCDF and not HDF5 because 'make > check' for HDF5 tests the C AND Fortran 90 parallel IO and all tests > pass. I have traced this problem extensively in TotalView and it seems > to stem from the fact that MPI_COMM_WORLD is zero in the Fortran 90 > interface for OpenMPI. In contrast, MPICH2 Fortran 90 interface sets > MPI_COMM_WORLD to 1140850688. > David, How are you specifying MPI_COMM_WORLD? Are you defining your own constant? In my case I find a fortran header file called mpif.h, which I include in my fortran program to get a definition for MPI_COMM_WORLD... Ed -- Ed Hartnett -- ed@xxxxxxxxxxxxxxxx
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