Hi, i hope this is the right mailing list to post to...
Anyway, i was wondering if i could get some advice/direction on how to debug my mpich program. I am running on a scyld configuration. What i am trying right now is the following: mpirun -dbg=gdb -nolocal -np 32 exec which starts the debugger in which i go run args which then start the program. However, it doesn't get very far until it just sits there. When i ps all the processes are defunced. When i do the same thing except mpirun -dbg=gdb -nolocal -np 1 exec and run it in the debugger, the program starts running well. The reason i want to run on 32 processor though, is that it takes (on 32 procs) several hours till my program crashes. Also, i would like to be able to keep the conditions under which it crashes intact as much as possible (i.e. run on 32 procs rather than 1). Does anyone have any advice? I am open to try out other things as well if possible. I am just starting to learn debugger techniques for a parallel program. thanks mat _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
