Can you get a core dump, or otherwise see exactly where the seg fault is occurring?
On Jan 18, 2010, at 8:34 AM, Dorian Krause wrote: > Hi Eloi, > > > > Does the segmentation faults you're facing also happen in a sequential > > environment (i.e. not linked against openmpi libraries) ? > > No, without MPI everything works fine. Also, linking against mvapich > doesn't give any errors. I think there is a problem with GotoBLAS and > the shared library infrastructure of OpenMPI. The code doesn't come to > the point to execute the gemm operation at all. > > > Have you already informed Kazushige Goto (developer of Gotoblas) ? > > Not yet. Since the problem only happens with openmpi and the BLAS > (stand-alone) seems to work, I thought the openmpi mailing list would be > the better place to discuss this (to get a grasp of what the error could > be before going to the GotoBLAS mailing list). > > > > > Regards, > > Eloi > > > > PS: Could you post your Makefile.rule here so that we could check the > > different compilation options chosen ? > > I didn't make any changes to the Makefile.rules. This is the content of > Makefile.conf: > > OSNAME=Linux > ARCH=x86_64 > C_COMPILER=GCC > BINARY32= > BINARY64=1 > CEXTRALIB=-L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 > -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 > -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64 > -L/lib/../lib64 -L/usr/lib/../lib64 -lc > F_COMPILER=GFORTRAN > FC=gfortran > BU=_ > FEXTRALIB=-L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 > -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 > -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64 > -L/lib/../lib64 -L/usr/lib/../lib64 -lgfortran -lm -lgfortran -lm -lc > CORE=BARCELONA > LIBCORE=barcelona > NUM_CORES=8 > HAVE_MMX=1 > HAVE_SSE=1 > HAVE_SSE2=1 > HAVE_SSE3=1 > HAVE_SSE4A=1 > HAVE_3DNOWEX=1 > HAVE_3DNOW=1 > MAKE += -j 8 > SGEMM_UNROLL_M=8 > SGEMM_UNROLL_N=4 > DGEMM_UNROLL_M=4 > DGEMM_UNROLL_N=4 > QGEMM_UNROLL_M=2 > QGEMM_UNROLL_N=2 > CGEMM_UNROLL_M=4 > CGEMM_UNROLL_N=2 > ZGEMM_UNROLL_M=2 > ZGEMM_UNROLL_N=2 > XGEMM_UNROLL_M=1 > XGEMM_UNROLL_N=1 > > > Thanks, > Dorian > > > _______________________________________________ > > users mailing list > > us...@open-mpi.org > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- Jeff Squyres jsquy...@cisco.com
