Hi, We are currently testing OpenMPI and I would like to ask you few questions related to it.
While looking at performance and control variables provided by the MPI_T interface, I was surprised by the impressive number of control variables (1,087 if I am right (with 1.8.4)) but I was also disappointed to see that I was able to get only 2 performance variables. I would to know if you are planning to add more Performance variables like number of time an algorithm from a collective was called, or the number of buffer allocated/free etc… Regarding collective tuning, I was wondering if you can recommend me a paper/presentation that will provide most of the details. I found some interesting posts (like this one: http://www.open-mpi.org/community/lists/users/2014/11/25847.php) but I am looking for a paper/doc explaining the different modules (basic, tuned, self, hierarchical…) and how to set dynamic rules Thanks, Jerome -- Jerome Vienne, Ph.D Research Associate Texas Advanced Computing Center The University of Texas at Austin (512) 475-9322 vien...@tacc.utexas.edu<mailto:vien...@tacc.utexas.edu>
