Sorry for the delayed reply. I'm afraid I haven't done much with SE Linux -- I don't know if there are any "gotchas" that would show up there. SE Linux support is not something we've gotten a lot of request for. I doubt that anyone in the community has done much testing in this area. :-\
I suspect that Open MPI is trying to access something that your user (under SE Linux) doesn't have permission to. So I'm afraid I don't have much of an answer for you -- sorry! If you do figure it out, though, if a fix is not too intrusive, we can probably incorporate it upstream. On Mar 4, 2011, at 7:31 AM, Youri LACAN-BARTLEY wrote: > Hi, > > This is my first post to this mailing-list so I apologize for maybe being a > little rough on the edges. > I’ve been digging into OpenMPI for a little while now and have come across > one issue that I just can’t explain and I’m sincerely hoping someone can put > me on the right track here. > > I’m using a fresh install of openmpi-1.2.7 and I systematically get a > segmentation fault at the end of my mpirun calls if I’m logged in as a > regular user. > However, as soon as I switch to the root account, the segfault does not > appear. > The jobs actually run to their term but I just can’t find a good reason for > this to be happening and I haven’t been able to reproduce the problem on > another machine. > > Any help or tips would be greatly appreciated. > > Thanks, > > Youri LACAN-BARTLEY > > Here’s an example running osu_latency locally (I’ve “blacklisted” openib to > make sure it’s not to blame): > > [user@server ~]$ mpirun --mca btl ^openib -np 2 > /opt/scripts/osu_latency-openmpi-1.2.7 > # OSU MPI Latency Test v3.3 > # Size Latency (us) > 0 0.76 > 1 0.89 > 2 0.89 > 4 0.89 > 8 0.89 > 16 0.91 > 32 0.91 > 64 0.92 > 128 0.96 > 256 1.13 > 512 1.31 > 1024 1.69 > 2048 2.51 > 4096 5.34 > 8192 9.16 > 16384 17.47 > 32768 31.79 > 65536 51.10 > 131072 92.41 > 262144 181.74 > 524288 512.26 > 1048576 1238.21 > 2097152 2280.28 > 4194304 4616.67 > [server:15586] *** Process received signal *** > [server:15586] Signal: Segmentation fault (11) > [server:15586] Signal code: Address not mapped (1) > [server:15586] Failing at address: (nil) > [server:15586] [ 0] /lib64/libpthread.so.0 [0x3cd1e0eb10] > [server:15586] [ 1] /lib64/libc.so.6 [0x3cd166fdc9] > [server:15586] [ 2] /lib64/libc.so.6(__libc_malloc+0x167) [0x3cd1674dd7] > [server:15586] [ 3] /lib64/ld-linux-x86-64.so.2(__tls_get_addr+0xb1) > [0x3cd120fe61] > [server:15586] [ 4] /lib64/libselinux.so.1 [0x3cd320f5cc] > [server:15586] [ 5] /lib64/libselinux.so.1 [0x3cd32045df] > [server:15586] *** End of error message *** > [server:15587] *** Process received signal *** > [server:15587] Signal: Segmentation fault (11) > [server:15587] Signal code: Address not mapped (1) > [server:15587] Failing at address: (nil) > [server:15587] [ 0] /lib64/libpthread.so.0 [0x3cd1e0eb10] > [server:15587] [ 1] /lib64/libc.so.6 [0x3cd166fdc9] > [server:15587] [ 2] /lib64/libc.so.6(__libc_malloc+0x167) [0x3cd1674dd7] > [server:15587] [ 3] /lib64/ld-linux-x86-64.so.2(__tls_get_addr+0xb1) > [0x3cd120fe61] > [server:15587] [ 4] /lib64/libselinux.so.1 [0x3cd320f5cc] > [server:15587] [ 5] /lib64/libselinux.so.1 [0x3cd32045df] > [server:15587] *** End of error message *** > mpirun noticed that job rank 0 with PID 15586 on node server exited on signal > 11 (Segmentation fault). > 1 additional process aborted (not shown) > [server:15583] *** Process received signal *** > [server:15583] Signal: Segmentation fault (11) > [server:15583] Signal code: Address not mapped (1) > [server:15583] Failing at address: (nil) > [server:15583] [ 0] /lib64/libpthread.so.0 [0x3cd1e0eb10] > [server:15583] [ 1] /lib64/libc.so.6 [0x3cd166fdc9] > [server:15583] [ 2] /lib64/libc.so.6(__libc_malloc+0x167) [0x3cd1674dd7] > [server:15583] [ 3] /lib64/ld-linux-x86-64.so.2(__tls_get_addr+0xb1) > [0x3cd120fe61] > [server:15583] [ 4] /lib64/libselinux.so.1 [0x3cd320f5cc] > [server:15583] [ 5] /lib64/libselinux.so.1 [0x3cd32045df] > [server:15583] *** End of error message *** > Segmentation fault > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
