RobL, > If you opened the file with MPI_COMM_WORLD, that should have already > happened in ROMIO. If you need to do independent I/O for some reason, > then that wouldn't have helped you. I haven't seen simultaneous > indpendent file opens cause problems on jazz, but in those cases I'm > not using the VFS either
We just the MPI part for starting up a lot of processes.. Sorry for the incorrect phrasing in my emails. We dont use MPI I/O. Used the posix interface directly. Simultaneous create problems with vfs is possibly due to the request scheduler on server not serializing crdirents of the same component name. I doubt you will even see that kind of pattern at the server with the mpi i/o interface. Thanks, Murali _______________________________________________ Pvfs2-developers mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers
