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Subject: [OMPI users] With IMPI works fine,With OMPI fails
From: Sangamesh B (forum.san_at_[hidden])
Date: 2009-10-28 13:39:41


Hi all,

     The compilation of a fortran application - CPMD-3.13.2 - with OpenMP +
OpenMPI-1.3.3 + ifort-10.1 + MKL-10.0 is failing with following error on a
Rocks-5.1 Linux cluster:

/lib/cpp -P -C -traditional -D__Linux -D__PGI -DFFT_DEFAULT -DPOINTER8
-DLINUX_IFC -DPARALLEL -DMYRINET ./potfor.F ./potfor.f
/opt/mpi/openmpi/1.3.3/intel/bin/mpif90 -c -pc64 -O3 -xT -unroll -openmp
./potfor.f -o ./potfor.o
fortcom: Severe: **Internal compiler error: segmentation violation signal
raised** Please report this error along with the circumstances in which it
occurred in a Software Problem Report. Note: File and line given may not
be explicit cause of this error.

compilation aborted for ./potfor.f (code 3)
make: *** [potfor.o] Error 3

But if the potfor.f is compiled by removing -openmp option, then it compiles
successfully. But while running it again failed with "Aborted"
message.

The interesting thing is, the same application compiles and runs fine with
IntelMPI on another cluster with exactly the same environment.

What's here the issue with Open MPI?

Thanks,
Sangamesh