pySDC
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Add test for sweeper class(es) and verify update matrix
Implement tests for
- Sweeper
- imex_1st_order
and make sure that the derived update matrix gives the same result as performing k many sweeps.
Reuse code from main.py in matrix pfasst.
Test for scalar problem update matrix has been added with https://github.com/Parallel-in-Time/pySDC/pull/53.
Still need test for acoustic-advection stability function / update.