We have occasionally had a problem like this when we set LD_LIBRARY_PATH only. On OSX you may need to set DYLD_LIBRARY_PATH instead ( set it to the same lib directory )
Can you try that and see if it resolves the problem?
Sandia National Laboratories
From: Meredith, Karl [karl.meredith_at_[hidden]<mailto:karl.meredith_at_[hidden]>]
Sent: Monday, November 25, 2013 06:25 AM Mountain Standard Time
To: Open MPI Users
Subject: [EXTERNAL] Re: [OMPI users] open-mpi on Mac OS 10.9 (Mavericks)
I do have these two environment variables set:
Running mpirun seems to work fine with a simple command, like hostname:
$ )mpirun -n 2 hostname
I am trying to run the simple hello_cxx example from the openmpi distribution, compiled as such:
mpic++ -g hello_cxx.cc -o hello_cxx
It compiles fine, without warning or error. However, when I go to run the example, it stalls on the MPI::Init() command:
mpirun -np 1 hello_cxx
It never errors out or crashes. It simply hangs.
I am using the same mpic++ and mpirun version:
$ )which mpirun
$ )which mpic++
Not quite sure what else to check.
On Nov 23, 2013, at 5:29 PM, Ralph Castain <rhc_at_[hidden]> wrote:
> Strange - I run on Mavericks now without problem. Can you run "mpirun -n 1 hostname"?
> You also might want to check your PATH and LD_LIBRARY_PATH to ensure you have the prefix where you installed OMPI 1.6.5 at the front. Mac distributes a very old version of OMPI with its software and you don't want to pick it up by mistake.
> On Nov 22, 2013, at 1:45 PM, Meredith, Karl <karl.meredith_at_[hidden]> wrote:
>> I recently upgraded my 2013 Macbook Pro (Retina display) from 10.8 to 10.9. I downloaded and installed openmpi-1.6.5 and compiled it with gcc 4.8 (gcc installed from macports).
>> openmpi compiled and installed without error.
>> However, when I try to run any of the example test cases, the code gets stuck inside the first MPI::Init() call and never returns.
>> Any thoughts on what might be going wrong?
>> The same install on OS 10.8 works fine and the example test cases run without error.
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