On Aug 18, 2005, at 4:24 PM, Brian Barrett wrote:
On Aug 18, 2005, at 4:53 PM, David Daniel wrote:
A question for those who did the ROMIO port...
The ROMIO component seems to be based on version 1.2.5.1 (the last
version of ROMIO released independently). Did anyone make any
progress using the ROMIO from later MPICH's (version 1.2.6 etc.)?
Seems to me these are fairly broken as far as compatibility with
other MPIs is concerned.
Thanks, David
Yes, we took the last stable individual release of ROMIO for OMPI.
We haven't looked at bringing in the MPICH-integrated releases. I'm
not sure how hard it will be to rip out the MPICH-specific stuff from
ROMIO, but at this point, it would take some work to replicate
everything we did to integrate ROMIO into OMPI. Is this a 1.0
requirement?
No -- Don't panic! The parallel I/O folks here are just interested in
seeing whether there are fixes in later versions that would help with
performance.
I was trying to port 1.2.6 into LA-MPI but it is painful (i.e.
broken) with an MPI implementation that doesn't have MPI_Info
defined. My guess is it will be easier with Open MPI.
David
