On Jan 8, 2008, at 4:18 PM, Francesco Pietra wrote:
Surely naive questions, though to avoid a mess and much time, having
no expert
in systems here:
Is there a recipe for "upgrading" to 1.2.5/ifort in Linux from
version 1.2.3
compiled ifort? (my Linux is Debian amd64)?
We generally recommend having a new installation for each version of
Open MPI. We do not [yet] test for binary compatibility between
released versions of Open MPI. That's on the to-do list, but it
hasn't happened yet. Specifically, codes that were compiled against
v1.2.3 may or may not work with v.1.2.5.
For example, if you installed Open MPI v1.2.3 into:
/opt/openmpi-1.2.3
you might want to install Open MPI v1.2.5 into:
/opt/openmpi-1.2.5
Or something along those lines.
What about the parallelized programs that depend on Open MPI? (several
instances in my system)
It is best to recompile / relink them against the new installation of
Open MPI (v1.2.5).
What about programs that were compiled from config configured for
mpich2,
though run parallel by pointing to Open MPI 1.2 (one instance in my
system).
I'm not sure I fully understand this question... If you compile an
MPI application against MPICH2, it will not run properly with Open
MPI's mpirun and libmpi.
--
Jeff Squyres
Cisco Systems
