topic Intel MPI underperforming in Analyzers https://community.intel.com/t5/Analyzers/Intel-MPI-underperforming/m-p/1146081#M17257 <P>Intel MPI ( version 2019.3.199) is underperforming in our InfiniBand FDR cluster. Bandwidth is a little more than half it should be with a benchmark MPI code. The Pingpong IMB also shows a significant decrease compared with mvapich, for example. This is noticed also in application codes.&nbsp;</P> Tue, 14 May 2019 22:16:21 GMT alberto__pedro 2019-05-14T22:16:21Z Intel MPI underperforming https://community.intel.com/t5/Analyzers/Intel-MPI-underperforming/m-p/1146081#M17257 <P>Intel MPI ( version 2019.3.199) is underperforming in our InfiniBand FDR cluster. Bandwidth is a little more than half it should be with a benchmark MPI code. The Pingpong IMB also shows a significant decrease compared with mvapich, for example. This is noticed also in application codes.&nbsp;</P> Tue, 14 May 2019 22:16:21 GMT https://community.intel.com/t5/Analyzers/Intel-MPI-underperforming/m-p/1146081#M17257 alberto__pedro 2019-05-14T22:16:21Z