On Tue, Jul 10, 2007 at 04:36:01PM +0000, jody wrote: > I think there is still some problem. > I create different datatypes by resizing MPI_SHORT with > different negative lower bounds (depending on the rank) > and the same extent (only depending on the number of processes). > > However, I get an error as soon as MPI_File_set_view is called with my new > datatype: > > Error: Unsupported datatype passed to ADIOI_Count_contiguous_blocks > [aim-nano_02:22229] MPI_ABORT invoked on rank 0 in communicator > MPI_COMM_WORLD with errorcode 1
Hi Jody I was wrong about this being a problem with OpenMPI's version of ROMIO. The OpenMPI guys have synced up fairly recently with the OpenMPI in MPICH2. ROMIO, even the very latest in CVS version, doesn't support resized types yet. Looks like you'll have to take George's alternate idea of MPI_UB and MPI_LB. We'll let the OpenMPI guys know when resized support is in place. Sorry for the confusion. ==rob -- Rob Latham Mathematics and Computer Science Division A215 0178 EA2D B059 8CDF Argonne National Lab, IL USA B29D F333 664A 4280 315B
