Hi, I recently upgraded from openmpi 1.5.4 to openmpi 1.81 and built an application which uses parallel version of Mumps (http://mumps.enseeiht.fr/) .
I am noticing process gets hung with np > 2 but some time it works also. I am not sure if this because of the openmpi upgrade or some problem with our code. It used to work fine with 1.5.4. Strace shows that process is polling some resource while it is hanged. Any pointers on how to debug this ? thanks, Kishor
