Re: [OMPI devel] How to display device selection or routing info

2021-08-19 Thread GERMAIN, Florent via devel
Hello, Open MPI have given to you the only information it has: message is given to mlx4_0:1. As you are using InfiniBand network, the routing tables are handled by the ib runtime. You can gather information about ib routing through the ibroute command. I hope it will help you. Florent Germain In

[OMPI devel] How to display device selection or routing info

2021-08-19 Thread Baker, Lawrence M via devel
I am running into dead ends trying to find an mpirun option to display the device selected for each process. I use mpirun --report-bindings to view the bindings to nodes/cpus/cores. But I cannot find an equivalent option that displays the hardware path used for OpenMPI messaging. Or the dev