[mvapich-discuss] Assertion failure

[Martin Pokorny]

Hello everyone,

I've been occasionally seeing the following assertion error under 
mvapich2-1.9a2. The conditions leading to the failure are not clear to 
me (I'm working on a real-time data processing system), but this failure 
only occurs sporadically.

Assertion failed in file 
src/mpid/ch3/channels/mrail/src/rdma/ch3_rndvtransfer.c at line 922: 
vc->ch.pending_r3_data == 0

Note the I have been making some modifications to MPI-IO routines, so 
that muddies the waters a bit, but are there any known conditions that 
might trigger this assertion failure? Are there any configuration 
variables that I might change to (try to) avoid this failure?

-- 
Martin Pokorny
Software Engineer - Karl G. Jansky Very Large Array
National Radio Astronomy Observatory - New Mexico Operations