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Subject: Re: [OMPI users] Trouble with OpenMPI and Intel 10.1 compilers
From: Gus Correa (gus_at_[hidden])
Date: 2008-11-11 14:08:50

Hi Ray and list

I have Intel ifort 10.1.017 on a Rocks 4.3 cluster.
The OpenMPI compiler wrappers (i.e. "opal_wrapper") work fine,
and find the shared libraries (Intel or other) without a problem.

My guess is that this is not an OpenMPI problem, but an Intel compiler
environment glitch.
I wonder if your .profile/.tcshrc/.bashrc files initialize the Intel
compiler environment properly.
I.e., "source /share/apps/intel/fce/10.1.018/bin/ifortvars.csh" or
similar, to get the right
Intel environment variables inserted on

Not doing this caused trouble for me in the past.
Double or inconsistent assignment of LD_LIBRARY_PATH and PATH
(say on the ifortvars.csh and on the user login files) also caused

I am not sure if this needs to be done before you configure and install
but doing it after you build OpenMPI may still be OK.

I hope this helps,
Gus Correa

Gustavo J. Ponce Correa, PhD - Email: gus_at_[hidden]
Lamont-Doherty Earth Observatory - Columbia University
P.O. Box 1000 [61 Route 9W] - Palisades, NY, 10964-8000 - USA
Ray Muno wrote:
> We have recently installed the Intel 10,1 compiler suite on our cluster.
> I built OpenMPI (1.2.7 and 1.2.8) with
> ./configure CC=icc CXX=icpc F77=ifort FC=ifort
> It configures, builds and installs.
> However, the MPI compiler drivers (mpicc, mpif90, etc) fail 
> immediately with error of the sort
> mpif90: error while loading shared libraries: cannot open 
> shared object file: No such file or directory
> I updated the LD_LIBRARY_PATH to point to the directories that contain 
> the installed copies of (this is not something I have not 
> had to do for other compiler/OpenMpi combinations)
> At that point, the program will compile but I get warnings like:
> [muno_at_titan ~]$ mpif90 test.f
> /share/apps/Intel/fce/10.1.018/lib/ warning: warning: 
> feupdateenv is not implemented and will always fail
> In a google search, I found a reference to this in the OpenMPI lists. 
> When I follow the link, it is a different thread. Searching the 
> OpenMPI lists from the web page does not find any matches. Strange.
> I found some references to this at some other sites using OpenMPI on 
> clusters and they said to use
> -i_dynamic
> on the compile line.
> This removes the warning.
> Is there something I should be doing at OpenMPI configure time to take 
> care of these issues?
> -- 
> Ray Muno
> University of Minnesota
> Aerospace Engineering
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