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Any way to compute in HPC clusters using FaaS?

Not where you can bring your own image as of yet. Although Thomasj above mentions you can do this in OpenWhisk.

The closest to scientific HPC I have used personally is pywren https://github.com/pywren/pywren

Which is attempting to add more cloud backends. It's out of Berkley University.

Hi! Pywren project lead here, we're working on more and more fun HPC-style projects! We're also interested in expanding to more and more backends, so please feel free to reach out if there's something you'd like to see.

I meant more like the opposite, where you can do parallel computing in a cluster by using a simple serverless FaaS paradigm. The idea is to remove the headache of manually setting up an MPI cluster, worrying about MPI communications, etc.

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