I'm helping to organize a workshop about alternatives to MPI in HPC. You can see a sample of past programs at [1]. But you're right: today, MPI is dominant. I

I'm helping to organize a workshop about alternatives to MPI in HPC. You can see a sample of past programs at [1]. But you're right: today, MPI is dominant. I suspect this will change, if only because HPC and data center computing is converging, and the (much larger) data center side of things is very much not based on MPI (e.g., see TensorFlow). Personally, I find it reassuring that many of the dominant solutions from the data center side have more in common with the upstart HPC solutions, than they do with the HPC status quo. I'd like to think that at some point we'll be able to bring around the rest of the HPC community too. [1]: https://sourceryinstitute.github.io/PAW/ https://sourceryinstitute.github.io/PAW/