Re: [OMPI users] users Digest, Vol 1000, Issue 1

2008-09-09 Thread Jeff Squyres
On Sep 9, 2008, at 3:05 PM, Christopher Tanner wrote: I think I've found the problem / solution. With Ubuntu, there's a program called 'ldconfig' that updates the dynamic linker run-time bindings. Since Open MPI was compiled to use dynamic linking, these have to be updated. Thus, these comm

Re: [OMPI users] users Digest, Vol 1000, Issue 1

2008-09-09 Thread Jeremy Stout
On clusters where I'm using the Intel compilers and OpenMPI, I setup the compiler directory (usually /opt/intel) as a NFS export. The computation nodes then mount that export. Next, I add the following lines to the ld.so.conf file and distribute it to the computation nodes: /opt/intel/cce/version_n

Re: [OMPI users] users Digest, Vol 1000, Issue 1

2008-09-09 Thread Christopher Tanner
Jeremy - I think I've found the problem / solution. With Ubuntu, there's a program called 'ldconfig' that updates the dynamic linker run-time bindings. Since Open MPI was compiled to use dynamic linking, these have to be updated. Thus, these commands have to be run on all of the nodes $

Re: [OMPI users] users Digest, Vol 1000, Issue 1

2008-09-09 Thread Jeff Squyres
You might want to double check this; it's an easy thing to test incorrectly. What you want to check is that the LD_LIBRARY_PATH is set properly for *non-interactive logins* (I assume you are using the rsh/ssh launcher for Open MPI, vs. using a resource manager such as SLURM, Torque, etc.)

Re: [OMPI users] users Digest, Vol 1000, Issue 1

2008-09-09 Thread Christopher Tanner
Jeremy - Thanks for the help - this bit of advice came up quite a bit through internet searches. However, I made sure that the LD_LIBRARY_PATH was set and correct on all nodes -- and the error persists. Any other possible solutions? Thanks. --- Chris