On Fri, Sep 07, 2007 at 10:18:55AM -0400, Brock Palen wrote: > Is there a way to find out which ADIO options romio was built with?
not easily. You can use 'nm' and look at the symbols :> > Also does OpenMPI's romio come with pvfs2 support included? What > about Luster or GPFS. OpenMPI has shipped with PVFS v2 support for a long time. Not sure how you enable it, though. --with-filesystems=ufs+nfs+pvfs2 might work for OpenMPI as it does for MPICH2. All versions of ROMIO support Lustre and GPFS the same way: with the "generic unix filesystem" (UFS) driver. Weikuan Yu at ORNL has been working on a native "AD_LUSTRE" driver and some improvements to ROMIO collective I/O. Likely to be in the next ROMIO release. For GPFS, the only optimized MPI-IO implementation is IBM's MPI for AIX. You're likely to see decent performance with the UFS driver, though. ==rob -- Rob Latham Mathematics and Computer Science Division A215 0178 EA2D B059 8CDF Argonne National Lab, IL USA B29D F333 664A 4280 315B
