[OMPI users] Parallel I/O Usage

(); I have some problems with the program reading invalid data and want to make sure I am actually using parallel I/O the right way. Thanks, -- Manuel Holtgrewe

[OMPI users] Is Datatype extent for INTEGER4 set incorrectly for files in OpenMPI 1.3?

Hi I think that the datatype extent for INTEGER4 is set incorrectly for files. Attached is a small program that shows the problem. The juicy bits: MPI_Aint extent; MPI_Type_extent(MPI_INTEGER, ); printf("MPI_Type_extent(MPI_INTEGER) == %d\n", extent); MPI_Type_extent(MPI_INTEGER4, );