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Problem with OpenMPI

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# 1  
Old 04-24-2011
Problem with OpenMPI
OK, I hope you can help me here: I'm trying to crack a hash using John the Ripper. (BindShell.Net: John The Ripper MPI Patch)
I'm runnig it on a cluster system using OpenMPI. But it is not working properly. If i try to run it, i get the following error:

Quote:
libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
This will severely limit memory registrations.
CMA: unable to open /dev/infiniband/rdma_cm
libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
This will severely limit memory registrations.
--------------------------------------------------------------------------
[[9905,1],0]: A high-performance Open MPI point-to-point messaging module
was unable to find any relevant network interfaces:

Module: OpenFabrics (openib)
Host: my.server.address

Another transport will be used instead, although this may result in
lower performance.
--------------------------------------------------------------------------
Loaded 1 password hash (Traditional DES [128/128 BS SSE2-16])
[server:08828] *** Process received signal ***
[server:08828] Signal: Segmentation fault (11)
[server:08828] Signal code: Address not mapped (1)
[server:08828] Failing at address: 0x1eee3e8
[server:08828] *** End of error message ***
Segmentation fault
Any idea what can be wrong? Happen on multiCPU as well as on single CPU.
(Some features of the program, like computing speed test, do work well.)
# 2  
Old 04-24-2011
The amount of memory you can set per program is limited, and OpenMPI tries to set memory beyond this limit, resulting in a Segmentation fault.

See the OpenMPI FAQ page for more info, but in short, for a single CPU, issueing the command
Code:
ulimit -l unlimited

should work. If you want to use more CPU's on more nodes, you have to issue this command on each node.

FAQ-page: http://www.open-mpi.org/faq/?categor...b-locked-pages
Last edited by Phoib; 04-24-2011 at 10:53 AM.. Reason: I can post url's now, yay.
# 3  
Old 04-24-2011
Well, thanks, this is better. Now I get:

Quote:
[server-1:10763] *** Process received signal ***
[server-1:10763] Signal: Segmentation fault (11)
[server-1:10763] Signal code: Address not mapped (1)
[server-1:10763] Failing at address: 0x14d64b8
[server-1:10763] [ 0] /lib/libpthread.so.0 [0x7f2ba4d96a80]
[server-1:10763] [ 1] /software/ofed-1.3/mpi/gcc/openmpi-1.2.5/lib64/libopen-pal.so.0(_int_malloc+0x9fc) [0x7f2ba58725ac]
[server-1:10763] [ 2] /software/ofed-1.3/mpi/gcc/openmpi-1.2.5/lib64/libopen-pal.so.0(malloc+0x89) [0x7f2ba5873e59]
[server-1:10763] [ 3] /home/username/john-1.7.3.1-mpi8/run/john(mem_alloc+0x15) [0x41e3d5]
[server-1:10763] [ 4] /home/username/john-1.7.3.1-mpi8/run/john(do_incremental_crack+0x542) [0x41a6d2]
[server-1:10763] [ 5] /home/username/john-1.7.3.1-mpi8/run/john(main+0x8e5) [0x41c025]
[server-1:10763] [ 6] /lib/libc.so.6(__libc_start_main+0xe6) [0x7f2ba4a531a6]
[server-1:10763] [ 7] /home/username/john-1.7.3.1-mpi8/run/john [0x404e69]
[server-1:10763] *** End of error message ***
...repeated for every CPU

But at last I'm getting somewhere. I will study the FAQ thoroughly, there should be some answers.
# 4  
Old 04-27-2011
BTW, I forgot to tell: In runnig the program over PBS/Torque job manager. It should take care of the memory allocation, but obviously it doesn't. "ulimit" didn't help, the memory is set to unlimited by default.

Any ideas?
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