stgeke issues

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stgeke

Add one sided MPI exchange method

Add non-blocking crystal router

I can think of two possible implementations: 1. Progress thread running in the background 2. User level thread (ULT) with network interrupts

Add additional exchange methods for sparse collective communication

Currently we support crystal router only. This PR suggests to add pairwise and all_reduce.

Extend findpts_eval() to perform interpolation on the source rank

Currently the interpolation step is performed on the target rank i.e. not on the source rank where interpolation points are stored. For large ratios of source/target ranks the interpolation step...

So far MPI benchmark packages do not assess the performance of sparse collectives. Possible benchmarks need to include: * different message sizes and virtual topologies * blocking and non-blocking performance

Document C and Fortran interface in README

Test Fortran bindings

Add hard exit condition in newton_vol()

Just in case convergence of the residual stalls

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