On Fri, Jan 25, 2013 at 09:04:04AM -0600, Mohamad Chaarawi wrote: > Hi Robert, > > This is a known limitation in Parallel HDF5. It is more of a > limitation inside ROMIO, which should be part of your MPI library, > where you can not write more than 2GB worth of data in one call. I > do not have a specific time table as to when this will be fixed. > > more details about the problem can be found here: > http://www.hdfgroup.org/hdf5-quest.html#p2gb
I've (finally) updated ROMIO and MPICH to handle these large transfers. The changes made it into the recent MPICH-3.1rc1 release. I'll also be working with OpenMPI and our vendor partners to make sure these changes get into "the wild" sooner rather than later (it's already been long enough...) ==rob -- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA _______________________________________________ Hdf-forum is for HDF software users discussion. [email protected] http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
