[mpich-discuss] simple halo exchange program

Rajeev Thakur thakur at mcs.anl.gov
Wed Nov 14 11:52:08 CST 2012

mpptest (http://www.mcs.anl.gov/research/projects/mpi/mpptest/) has a halo exchange test. 


On Nov 14, 2012, at 10:15 AM, Kokron, Daniel S. (GSFC-610.1)[Computer Sciences Corporation] wrote:

> All,
> I am putting together a halo-exchange benchmark that measures the impact of various strategies including Irecv/Send vs . Irecv/Isend vs use of MPI_datatypes instead of manual pack/unpack.  Most importanly, I'd like to measure the impact of using the new MPI_Neighbor_alltoallw.
> I have a few pieces of working code, but would love to leverage existing work in this area.  I get some tantalizing hits on "simple halo exchange program".  Does anyone know where I can get the code for "halocompare"
> Daniel Kokron
> NASA Ames (ARC-TN)
> SciCon group
> 301-286-3959
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