MPI version

[quantumkoen]

Create an MPI version that can run on cluster computers.

[RichardVersluisTNO]

Issue can be closed. fixed. QX is now running on LISA cluster at Surf

[pablolh]

I am not sure it should be closed @RichardVersluisTNO

Currently QX uses OpenMP, which allows parallelization on a single machine (shared memory between threads).
What @quantumkoen is suggesting is to leverage multiple machines together by splitting the computation further and passing messages between multiple QX processes.

This would require a good amount of engineering and test and trial to make it work.
Currently the OpenMP support is afaict far from optimal so I think MPI would be a longer-term project and proper shared memory parallelism should first be optimized.

[pablolh]

You can use OpenMP and MPI together.
On the side it should also be possible to use GPUs with CUDA to speed up all those operations. Again that would require a lot of development time to make it right, but speed up could be great.

[RichardVersluisTNO]

Indeed you are correct. This is something else. We can keep it open but indeed currently not the highest priority.