GPU CI Pipeline

[maximilian-gelbrecht]

This merges into jl/fourier_cuda

This is currently a "draft", but marked as a regular PR to hopefully trigger the pipeline.

[maximilian-gelbrecht]

Ok, the pipeline works. It could be merged.

@jackleland This sets up the GPU CI. The PR points towards your branch, feel free to merge it into your branch at any time you like. The tests are running, but there's also a failed test already in there.

[milankl]

Tests failures look like

ComplexF64[-0.3076805147278332 + 0.0im; 1.1085994123834553 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; 0.0016467605892351855 + 0.0im; 1.0662793043766845 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; 0.05971729033643114 + 0.0im; -0.04644323104982592 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; … ;;; 0.3453888679777678 + 0.0im; -0.1789364090484484 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; -0.023388671420225438 + 0.0im; 0.04181378235779623 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; 0.09117647818657071 + 0.0im; 0.06556419506787445 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im]
≈
ComplexF64[-0.3076805507070919 + 0.0im; 1.1085994632838272 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; 0.0016466971488262594 + 0.0im; 1.066279369053504 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; 0.05971722919486555 + 0.0im; -0.0464432261222856 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; … ;;; 0.345388861730916 + 0.0im; -0.1789363932662944 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; -0.023388667412709563 + 0.0im; 0.04181376509700334 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im;;; 0.0911764715403362 + 0.0im; 0.0655641721511797 + 0.0im; … ; 0.0 + 0.0im; 0.0 + 0.0im]

So might be just something about error tolerances. Most tests that involve a transform require a $$\sqrt{\epsilon}$$ scaling, look into test/spectral_transform.jl

[milankl]

Can we fix the failing tests on buildkite sooner? Buildkite is already active and makes other pull requests fail ... see #579 for example

[maximilian-gelbrecht]

Can we fix the failing tests on buildkite sooner? Buildkite is already active and makes other pull requests fail ... see #579 for example

Ah huh, I didn't expect it to be active there. But the failure in #579 isn't the test above failing, it's checking if there is a a pipeline there. I'll make another PR with a dummy pipeline.yml file.

[jackleland]

Can we fix the failing tests on buildkite sooner? Buildkite is already active and makes other pull requests fail ... see #579 for example

Fixed the tolerance on the tests now, still looking into an issue with the CPU FFTW transform though