Hi Damien,
I know there will be more problems, and your feedback is always
helpful. :-)
Could you please provide me a Visual Studio solution file for MUMPS? I
would like to test it a little.
Thanks,
Shiqing
On 2010-5-12 6:11 AM, Damien wrote:
Hi all,
Me again (poor Shiqing, I know...). I've been trying to get the MUMPS
solver running on Windows with Open-MPI. I can only use the 1.5
branch because that has Fortran support on Windows and 1.4.2 doesn't.
There's a couple of things going wrong:
First, calls to MPI_Initialized from Fortran report that MPI isn't
initialised (MUMPS has a MPI_Initialized check). If I call
MPI_Initialized from C or C++, it is initialized. I'm not sure what
this means for MPI calls from Fortran, but it could be the cause of
the second problem, which is: If I bypass the MPI_Initialized check
in MUMPS, I can get the solver to start and run in one process. If I
try and run 2 or more processes, all the processes ramp to 100% CPU in
the first parallel section, and sit there with no progress. If I
break in with the debugger, I can usually land on some MPI_IProbe
calls, presumably looking for receives that don't exist, possibly
because the Fortran MPI environment really isn't initialised. After
many debugger break-ins, I end up in a small group of calls, so it's a
loop waiting for something.
For reference, it was yesterday's 1.5 svn trunk, MUMPS 4.9.2, and
Intel Math libraries, and a 32-bit build. MUMPS is Fortran 90/95 but
uses the F77 MPI interfaces. It does run with MPICH2. I realise that
1.5 is a dev branch, so it might just be too early for this to work.
I'd be grateful for suggestions though. I can build and test this on
Linux if that would help narrow this down.
Damien
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