[Beowulf] MPI_Isend/Irecv failure for IB and large message sizes
hahn at mcmaster.ca
Mon Nov 16 16:58:25 EST 2009
>>> I am running into problems when sending large messages (about
>>> 180000000 doubles) over IB. A fairly trivial example program is attached.
>> sorry if you've already thought of this, but might you have RLIMIT_MEMLOCK
>> set too low? (ulimit -l)
> Good point.
> max locked memory (kbytes, -l) unlimited
> ... same error :-(
well, at this point, I'd consider running the test program under strace.
Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
More information about the Beowulf