Hello everyone, We are working on the simulation of MPI applications with the SimGrid simulation framework. We would like to make simulation possible from within OpenMPI (instead of using our own MPI implementation). To this end, we plan to implement a set of modules so that network transfers are simulated instead of being actually performed.
We have hacked a working ODLS to spawn an additional orchestration process and to hack the processes' environment. We are currently trying to implement simulation in a custom BTL. Do you think that BTL is our best entry point component to simulate the network transfers? The PML also looks very appealing but at this moment we do not fully understand the role of all OpenMPI components and how they interact. Best regards, -- Dr. Millian Poquet Postdoc Researcher, Myriads Team, Inria/IRISA https://mpoquet.github.io
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