On CI servers select the GPU with the most memory

[ali-ramadhan]

Thanks for the tip @maleadt!

[glwagner]

@ali-ramadhan, the GitLab test is failing.

[ali-ramadhan]

Hmmm, looks like it's failing the verification experiment tests but passes everything else...

336 Stratified Couette flow verification [CPU]: Error During Test at /builds/JuliaGPU/Oceananigans-jl/test/test_verification.jl:25
337   Test threw exception
338   Expression: run_stratified_couette_flow_verification(arch)
339   UndefVarError: simulate_stratified_couette_flow not defined
340   Stacktrace:
341    [1] run_stratified_couette_flow_verification(::CPU) at /builds/JuliaGPU/Oceananigans-jl/test/test_verification.jl:14
342    [2] top-level scope at /builds/JuliaGPU/Oceananigans-jl/test/test_verification.jl:25
343    [3] top-level scope at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Test/src/Test.jl:1083
344    [4] top-level scope at /builds/JuliaGPU/Oceananigans-jl/test/test_verification.jl:24
345    [5] top-level scope at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.1/Test/src/Test.jl:1083
346    [6] top-level scope at /builds/JuliaGPU/Oceananigans-jl/test/test_verification.jl:20

Will look into it. Should be a simple fix.

[codecov]

Codecov Report

Merging #559 into master will increase coverage by 3.7%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master     #559     +/-   ##
=========================================
+ Coverage   67.72%   71.43%   +3.7%     
=========================================
  Files          69       70      +1     
  Lines        1952     2307    +355     
=========================================
+ Hits         1322     1648    +326     
- Misses        630      659     +29

Impacted Files	Coverage Δ
src/boundary_conditions.jl	69.06% <0%> (-4.97%)	⬇️
src/halo_regions.jl	83.05% <0%> (-3.07%)	⬇️
src/TimeSteppers/kernels.jl	57.8% <0%> (-2.6%)	⬇️
src/AbstractOperations/computations.jl	75.75% <0%> (-0.25%)	⬇️
src/Solvers/batched_tridiagonal_solver.jl	100% <0%> (ø)
src/OutputWriters/netcdf_output_writer.jl	89.23% <0%> (+2.69%)	⬆️
src/utils.jl	74.35% <0%> (+2.79%)	⬆️
src/TimeSteppers/TimeSteppers.jl	78.78% <0%> (+4.42%)	⬆️
src/Diagnostics/cfl.jl	71.42% <0%> (+4.76%)	⬆️
src/Operators/interpolation_operators.jl	64.28% <0%> (+4.76%)	⬆️
... and 4 more

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[ali-ramadhan]

Fixed. Should be good to merge now.