hmmm, interesting since my version doesn't abort at all.
--td
Li-Ta Lo wrote:
On Wed, 2007-08-29 at 11:36 -0400, Terry D. Dontje wrote:
To run the code I usually do "mpirun -np 6 a.out 10" on a 2 core
system. It'll print out the following and then hang:
Target duration (seconds): 10.000000
# of messages sent in that time: 589207
Microseconds per message: 16.972
I know almost nothing about FORTRAN but the stack dump told me
it got NULL pointer reference when accessing the "me" variable
in the do .. while loop. How can this happen?
[ollie@exponential ~]$ mpirun -np 2 a.out 100
[exponential:22145] *** Process received signal ***
[exponential:22145] Signal: Segmentation fault (11)
[exponential:22145] Signal code: Address not mapped (1)
[exponential:22145] Failing at address: (nil)
[exponential:22145] [ 0] [0xb7f2a440]
[exponential:22145] [ 1] a.out(MAIN__+0x54a) [0x804909e]
[exponential:22145] [ 2] a.out(main+0x27) [0x8049127]
[exponential:22145] [ 3] /lib/libc.so.6(__libc_start_main+0xe0)
[0x4e75ef70]
[exponential:22145] [ 4] a.out [0x8048aa1]
[exponential:22145] *** End of error message ***
call MPI_Send(keep_going,1,MPI_LOGICAL,me+1,1,
$ MPI_COMM_WORLD,ier)
804909e: 8b 45 d4 mov 0xffffffd4(%ebp),%eax
80490a1: 83 c0 01 add $0x1,%eax
It is compiled with g77/g90.
Ollie
_______________________________________________
devel mailing list
de...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/devel
