On Tue, Sep 05, 2006 at 11:17:31AM -0500, Murali Vilayannur wrote: > Hey guys, > It turns out that the mpi-io programs that were stalling on Chiba was not > because of any I/O related issues, but due to a simultaneous file create > issue that was causing all sorts of weirdness. So, the workaround was to > create the file in rank 0 and have all other ranks open the file after a > barrier. So please ignore my previous message..
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 ==rob -- Rob Latham Mathematics and Computer Science Division A215 0178 EA2D B059 8CDF Argonne National Labs, IL USA B29D F333 664A 4280 315B _______________________________________________ Pvfs2-developers mailing list Pvfs2-developers@beowulf-underground.org http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers
