[OMPI users] deadlock in openmpi 1.5rc5

Hi All, I am new to openmpi and have encountered an issue using pre-release 1.5rc5, for a simple mpi code (see attached). In this test, nodes 1 to n sends out a random number to node 0, node 0 sums all numbers received. This code works fine on 1 machine with any number of nodes, and on 3 machines

Re: [OMPI users] openMPI shared with NFS, but says different version

i have good news. after updating to a newer kernel on ubuntu server nodes, sm is not a problem anymore for the nehalem CPUs!!! my older kernel, was Linux 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC 2010 x86_64 GNU/Linux and i upgraded to Linux agua 2.6.32-24-server #39-Ubuntu SMP Wed J