i recommend you run standard MPI benchmark with both openmpi versions,
so we get a better picture of what is happening on your cluster.
fwiw, such benchmark could be IMB
https://software.intel.com/en-us/articles/intel-mpi-benchmarks and/or
OSU http://mvapich.cse.ohio-state.edu/benchmarks/
Cheers,
Gilles
On 2/26/2016 3:47 PM, Eva wrote:
I measure communication time for MPI_Send and end2end training time
(including model training and communication time).
MPI1.4.1 is faster than MPI1.10.2:
MPI_Send+MPI_Recv: 2.83%
end2end training time: 8.89%
2016-02-26 14:45 GMT+08:00 Eva <wuzh...@gmail.com
<mailto:wuzh...@gmail.com>>:
I measure communication time for MPI_Send and end2end training
time（including model training and communication time）.
MPI_Send+MPI_Recv
end2end training
MPI1.4.1 is faster than MPI1.10.2
2.83%
8.89%
2016-02-24 13:49 GMT+08:00 Eva <wuzh...@gmail.com
<mailto:wuzh...@gmail.com>>:
I compile the same program by using 1.4.1 and 1.10.2rc3 and
then run them under the same environment. 1.4.1 is 8.89%
faster than 1.10.2rc3. Is there any official performance
report for each version upgrade?
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