On Jan 12, 2013, at 5:06 AM, Ake Sandgren <[email protected]> wrote:
> Was the change for libmpi_f90 in VERSION intentional or a typo?
> This is from openmpi 1.6.3
> libmpi_f90_so_version=4:0:1
> 1.6.1 had
> libmpi_f90_so_version=2:0:1
It was both intentional and a typo.
Specifically, it really should have bee 4:0:3. :-(
Meaning: we unintentionally broke the F90 ABI for 1.6.3 (specifically: OMPI
applications compiled to utilize "use mpi"). :-( :-( :-(
This ABI compatibility will be restored in 1.6.4.
-----
See these commit messages for a fuller explanation:
https://svn.open-mpi.org/trac/ompi/changeset/27471
https://svn.open-mpi.org/trac/ompi/changeset/27558
The short explanation is that, in terms of the "use mpi" interface, all Open
MPI 1.6.x versions are ABI compatible except 1.6.3.
These work:
- compile a "use mpi" OMPI application with 1.6.x (where x!=3), change your
LD_LIBRARY_PATH to point to a different OMPI 1.6.x installation (where x!=3)
- compile a "use mpi" OMPI application with 1.6.3, use it with OMPI 1.6.3
installation
These do not:
- compile a "use mpi" OMPI application with 1.6.x (where x!=3), change your
LD_LIBRARY_PATH to point an OMPI 1.6.3 installation
- compile a "use mpi" OMPI application with 1.6.3, use it with OMPI 1.6.x
installation (where x!=3)
I will make an FAQ item about this so that the result is google-able.
--
Jeff Squyres
[email protected]
For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/
