Add amdflang to CI

[samhatfield]

No description provided.

[samhatfield]

Status:

• MPI has been disabled for amdflang. Somehow the OpenMPI built by amdflang can't be found by CMake. We will work on this in a future PR.
• Otherwise all tests are passing with amdflang except for ectrans_test_install which segfaults when running transi_sptogp. This is very similar to what we saw with IntelLLVM actually, which is very suspicious. However I cannot yet debug this crash interactively as I can't build a working amdflang on ECMWF's systems (I could probably build amdflang on my Mac but I have a feeling it's OS-specific). Will liaise with @PaulMullowney about how to debug this further. - Edit: now working by setting stack size to unlimited.

[samhatfield]

Note #249 must be merged into this in order for the amdflang tests to pass.

[wdeconinck]

This is great! Thanks also for the install-amd-flang script. Very useful.

[marsdeno]

Excellent!

[PaulMullowney]

We should hook the GPU build in, next. It will runtime fail, but at least we'll be covering compilation.

[samhatfield]

Note #249 must be merged into this in order for the amdflang tests to pass.

Correction: #249 must be merged into this in order for the amdflang tests to run. In this branch the TESTS feature is disabled for amdflang because we are building without MPI. After #249 is merged to develop (and I rebase this branch) we will be able to enable TESTS without MPI and we can then check whether the test suite passes for amdflang.

[wdeconinck]

Let's merge #249 first regardless

[samhatfield]

I'll try upgrading to amdflang 22.2.0 first, then adding -fno-stack-arrays.

[samhatfield]

Now compiling with -fno-stack-arrays. Still doesn't work :(