1 9:21 PM
To: us...@open-mpi.org
Subject: Re: [OMPI users] OpenMPI vs Intel Efficiency question
On 7/12/2011 7:45 PM, Mohan, Ashwin wrote:
> Hi,
>
> I noticed that the exact same code took 50% more time to run on OpenMPI
> than Intel. I use the following syntax to compile and run:
> Int
Hi,
I noticed that the exact same code took 50% more time to run on OpenMPI
than Intel. I use the following syntax to compile and run:
Intel MPI Compiler: (Redhat Fedora Core release 3 (Heidelberg), Kernel
version: Linux 2.6.9-1.667smp x86_64**
mpiicpc -o .cpp -lmpi
OpenMPI 1.4.3: (
being set to
the right place to pickup this version of OMPI. Lots of systems deploy
with default versions that may not be compatible, so if you wind up
running a daemon on the remote node that comes from another
installation, things won't work.
On Jul 8, 2011, at 10:52 AM, Mohan, Ashwin
another
installation, things won't work.
On Jul 8, 2011, at 10:52 AM, Mohan, Ashwin wrote:
Hi,
I am following up on a previous error posted. Based on the previous
recommendation, I did set up a password less SSH login.
I created a hostfile comprising of 4 nodes (w/ each node h
category=rsh#ssh-keys
On Jul 6, 2011, at 5:09 PM, Mohan, Ashwin wrote:
Hi,
I use the following command (mpirun --prefix /usr/local/openmpi1.4.3 -np
4 hello) to successfully execute a simple hello world command on a
single node. Each node has 4 slots. Following the successful exec
Hi,
I use the following command (mpirun --prefix /usr/local/openmpi1.4.3 -np
4 hello) to successfully execute a simple hello world command on a
single node. Each node has 4 slots. Following the successful execution
on one node, I wish to employ 4 nodes and for this purpose wrote a
hostfile. I
Hi,
I have the following questions
1. I build/compile using mpiCC test.c -o greet. However, when I
try to run the compiled file using mpirun -np 4 greet, I end up with the
following errors
greet: error while loading shared libraries: libmpi_cxx.so.0: cannot
open shared object file
