Any suggestions or hints on the performance anomalies observed my me ?
By the way, it would be good to know if there is any mechanism/tool to do
performance comparison between two openMPI versions (let’s say an older 3.1.1
version vs a new stable release 4.1.0 version) ?
With Regards,
S. Biplab
What is the exact configure line you used to build Open MPI? You don't want to
put CC and CXX in a single quoted token. For example, do this:
./configure CC=gcc CXX=g++ ...
Don't do this (which is what your previous mail implied you might be doing...?):
./configure "CC=gcc CXX=g++" ...
On