[OMPI devel] MPI_Pack & MPI_Unpack Performance

2010-05-19 Thread Rayson Ho
In the MPITypes paper (Processing MPI Datatypes Outside MPI), page 7: Test: Vector Element type: float MPICH2: 1788.85 MB/sec OpenMPI: 1088.01 MB/sec <- * MPITypes: 1789.37 MB/sec Manual Copy: 1791.59 MB/sec Test: YZ Face Element type: float MPICH2: 145.32 MB/sec OpenMPI: 93.08 MB/sec <- *

Re: [OMPI devel] Infiniband memory usage with XRC

2010-05-19 Thread Sylvain Jeaugey
On Mon, 17 May 2010, Pavel Shamis (Pasha) wrote: Sylvain Jeaugey wrote: The XRC protocol seems to create shared receive queues, which is a good thing. However, comparing memory used by an "X" queue versus and "S" queue, we can see a large difference. Digging a bit into the code, we found some

Re: [OMPI devel] The" Missing Symbol" issue and OpenMPI on NetBSD

2010-05-19 Thread Jeff Squyres
On May 18, 2010, at 9:49 PM, wrote: > > http://www.open-mpi.org/faq/?category=building#install-overwrite > I did notice that the last one of the three seem to be using a > fixed size width, whereas text in the the first and second flow > into the browser window. I used some fixed-width font word