[mvapich-discuss] Segmentation fault while running application

[Chaitra Kumar]

Hi Team,

I am trying to run Graph500 (tuned mpi version) on MVAPICH2-2.0. The
machine has infiniband.

I am using following configuration to build MVAPICH2 (have enabled
debugging options):

./configure --prefix=/home/padmanac/mvapich2 --enable-cxx
--enable-threads=multiple --with-device=ch3:mrail --with-rdma=gen2
--disable-fast --enable-g=all --enable-error-messages=all

The command which I am using is to launch Graph500 is:
mpiexec -f hostfile -np 50  -env MV2_DEBUG_CORESIZE=unlimited -env
MV2_DEBUG_SHOW_BACKTRACE=1  -env MV2_ENABLE_AFFINITY=0
./graph500_mpi_custom_50 29

This command always result in segmentation fault. From the coredump i have
got the backtrace.

Please find the trace below:

(gdb) bt
#0  0x00007f38f84b52dc in _int_free ()
   from /home/padmanac/mvapich2/lib/libmpich.so.12
#1  0x00007f38f84b3a96 in free ()
   from /home/padmanac/mvapich2/lib/libmpich.so.12
#2  0x00000000004054e5 in xfree ()
#3  0x000000000040ca10 in bitmap::clear() () at bitmap.cpp:54
#4  0x0000000000415cda in run_bfs(long, long*, bfs_settings const&) ()
    at bfs_custom.cpp:2036
#5  0x0000000000403a5d in main () at main.cpp:370


Please let me know how to solve this? Am I missing some configuration flag?

Thanks in advance.

Regards,
Chaitra
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