When I got segmentation faults, it has always been my coding mistakes. Perhaps your code is not robust against number of processes not divisible by 2?
On Wed, Jun 30, 2010 at 8:47 AM, Jack Bryan <dtustud...@hotmail.com> wrote: > Dear All, > > I am using Open MPI, I got the error: > > n337:37664] *** Process received signal *** > [n337:37664] Signal: Segmentation fault (11) > [n337:37664] Signal code: Address not mapped (1) > [n337:37664] Failing at address: 0x7fffcfe90000 > [n337:37664] [ 0] /lib64/libpthread.so.0 [0x3c50e0e4c0] > [n337:37664] [ 1] > /lustre/home/rhascheduler/RhaScheduler-0.4.1.1/mytest/nmn2 [0x414ed7] > [n337:37664] [ 2] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3c5021d974] > [n337:37664] [ 3] > /lustre/home/rhascheduler/RhaScheduler-0.4.1.1/mytest/nmn2(__gxx_personality_v0+0x1f1) > [0x412139] > [n337:37664] *** End of error message *** > > After searching answers, it seems that some functions fail. > > My program can run well for 1,2,10 processors, but fail when the number of > tasks cannot > be divided evenly by number of processes. > > Any help is appreciated. > > thanks > > Jack > > June 30 2010 > > > ------------------------------ > The New Busy think 9 to 5 is a cute idea. Combine multiple calendars with > Hotmail. Get > busy.<http://www.windowslive.com/campaign/thenewbusy?tile=multicalendar&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_5> > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- David Zhang University of California, San Diego
