Re: [OMPI devel] Network simulation from within OpenMPI

2018-09-17 Thread George Bosilca
Millian, The level of interposition you need depends on what exactly you are trying to simulate and at which granularity. If you want to simulate the different protocols (small, eager, PUT, GET, pipelining) supported by our default PML OB1, then you need to provide a BTL (with the exclusive flag

[OMPI devel] Network simulation from within OpenMPI

2018-09-17 Thread Millian Poquet
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