pi/openmpi-1.5.4 --with-openib CC=icc CXX=icpc F77=ifort FC=ifort
--with-knem=/opt/knem
From: Eugene Loh
To: Open MPI Users
Cc: Eric Feng
Sent: Wednesday, December 28, 2011 1:58 AM
Subject: Re: [OMPI users] Openmpi performance issue
If I remember corre
Can anyone help me?
I got similar performance issue when comparing to mvapich2 which is much faster
in each MPI function in real application but similar in IMB benchmark.
From: Eric Feng
To: "us...@open-mpi.org"
Sent: Friday, December 23, 20
Hello,
I am running into performance issue with Open MPI, I wish experts here can
provide me some help,
I have one application calls a lot of sendrecv, and isend/irecv, so waitall.
When I run Intel MPI, it is around 30% faster than OpenMPI.
However if i test sendrecv using IMB, OpenMPI is even
