Hi again folks!!
I'm really happy to announce you, guys, that, eventually, I got
OcamlMPI working good on my cluster. What I mean is: the problem about
compiling and executing the examples files provided by the latest
release of OcamlMPI (i.e: testmpi 'n test_mandel) is now definitely
solved. Thus, once more, I would like to thank Andres Varon and Rabih
Chaar for helping me handling that issue. You guys rock! :D
Well... let me to explain how I get OcamlMPI working nice with MPICH2.
Then, maybe, this could be useful for someone else. Here we go:
By watching the Makefile of OcamlMPI, I could understand that it is
always making reference to libmpi.a library (-lmpi). However, MPICH2
doesn't have any libmpi.a. So, what to do then??
Well.. there isn't any libmpi.a but there is a lib called libmpich.a
Therefore, all I did was replace the '-lmpi' options found in such
Makefile with '-lmpich'. What this means it that the Makefile will now
look for a lib called libmpich.a (and no more libmpi.a) which exists in
the MPICH2 implementation of MPI.
That is it!! After doing this and following some further instructions
as we can read in the README file (e.g.: ./configure, make, make
install, etc) found in the OcamlMPI install directory, everything
worked good.
As mentioned earlier by our friend Andres Varon, the line "ocamlc -cc
mpicc -o testmpi unix.cma mpi.cma test.ml -ccopt -L." was enough to
Ocaml for proper compilation and linking.
OK. If MPICH2 is proper installed and configured on your cluster
system, there will be no problems for running the examples files (as
well as others executables).
So, OcamlMPI problem is now solved. Thanks y'all guys for everything you did.
Best regards,