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Subject: [OMPI users] segfault when combining OpenMPI and GotoBLAS2
From: Dorian Krause (doriankrause_at_[hidden])
Date: 2010-01-18 06:16:56


Hi,

has any one successfully combined OpenMPI and GotoBLAS2? I'm facing
segfaults in any program which combines the two libraries (as shared
libs). The segmentation fault seems to occur in MPI_Init(). The gdb
backtrace is

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x424fb940 (LWP 9155)]
0x00002b2956ca9900 in opal_list_t_class () from
/share/apps/openmpi/1.3.2/gcc-4.1.2/lib/libopen-pal.so.0
(gdb) bt
#0 0x00002b2956ca9900 in opal_list_t_class () from
/share/apps/openmpi/1.3.2/gcc-4.1.2/lib/libopen-pal.so.0
#1 0x0000003df9c06307 in start_thread () from /lib64/libpthread.so.0
#2 0x0000003df90d1ded in clone () from /lib64/libc.so.6
#3 0x0000000000000000 in ?? ()

(For sake of completeness I have attached the test-program, you need to
compile it with -DSIZEOF_SCAL_T=8, e.g.
mpicc -DSIZEOF_SCAL_T=8 -o blas blas.c -L$GOTO2_LIB -lgoto2 -lgfortran).

I'm working on a Opteron x86_64 system running CentOs 5.2 . GotoBLAS2 V.
1.10 was compiled with gcc-4.1.2. This problem applies to OpenMPI 1.3.2
and OpenMPI 1.4.0 alike (both compiled with gcc-4.1.2).

I could post the `ompi_info --all` if anyone is interested but I think
both installations are quiet standard (openib, romio).

Thanks,
Dorian



  • text/plain attachment: blas.c