Muphys: Remove copies of arrays in false branches

[iomaganaris]

The graupel SDFG looks like the following:

In both maps there are outputs whose values are determined based on if-statements that check if a mask or multiple masks are activated. In case they are not the values of the maps are updated with the inputs without any change.
Since we know that the inputs and outputs are the same pointers we can improve this patter by removing the copies in the false branches of the if-statements and replacing the intermediate temporary AccessNodes with the global AccessNodes that are used as outputs of the program.
To be more specific, the AccessNodes where this is applied are:

• q_in_2 -> q_out_2
• q_in_3 -> q_out_3
• q_in_4 -> q_out_4
• q_in_5 -> q_out_5
• te -> t_out
  This is the updated SDFG:

[iomaganaris]

cscs-ci run default

[iomaganaris]

cscs-ci run distributed

[havogt]

We can pass this from muphys_wrapper, no? Then we can move the dace_hooks file to muphys?

[edopao]

Good idea, I am testing it.

[edopao]

cscs-ci run default

[edopao]

cscs-ci run default

[edopao]

cscs-ci run dace

[edopao]

cscs-ci run distributed

[edopao]

It works on GPU, but validation fails on CPU. I see errors in CPU validation also in muphys-ppp. It could be that we have missed propagating some strides, I will have a look.

[edopao]

cscs-ci run dace

[edopao]

cscs-ci run dace

[edopao]

cscs-ci run dace

[github-actions]

Mandatory Tests

Please make sure you run these tests via comment before you merge!

• cscs-ci run default
• cscs-ci run distributed

Optional Tests

To run benchmarks you can use:

• cscs-ci run benchmark-bencher

To run tests and benchmarks with the DaCe backend you can use:

• cscs-ci run dace

To run test levels ignored by the default test suite (mostly simple datatest for static fields computations) you can use:

• cscs-ci run extra

For more detailed information please look at CI in the EXCLAIM universe.