Use ParallelTestRunner

[vchuravy]

Companion to JuliaTesting/ParallelTestRunner.jl#51

Now uses JuliaTesting/ParallelTestRunner.jl#57

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.83%. Comparing base (53f450a) to head (3ace4c7).

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #390       +/-   ##
===========================================
+ Coverage   34.49%   78.83%   +44.33%     
===========================================
  Files          11       11               
  Lines         629      671       +42     
===========================================
+ Hits          217      529      +312     
+ Misses        412      142      -270     

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[maleadt]

Alternative approach, which I considered in order to get more visibility on which platform failed:

# for each platform, come up with a short and friendly name.
# note that this name should also work with `cl.platform!`
platform_names = Dict()
for platform in cl.platforms()
    short_name = if occursin("Intel", platform.name)
        "intel"
    elseif occursin("NVIDIA", platform.name)
        "nvidia"
    elseif occursin("AMD", platform.name) || occursin("Advanced Micro Devices", platform.vendor)
        "amd"
    elseif occursin("Apple", platform.vendor)
        "apple"
    elseif occursin("Portable Computing Language", platform.name)
        "pocl"
    else
        lowercase(replace(platform.name, r"\W+" => "_"))
    end
    if haskey(platform_names, short_name)
        @warn "Multiple OpenCL platforms with the same short name '$short_name'. " *
              "Using the first one found: $(platform_names[short_name].name). " *
              "Ignoring: $(platform.name)"
        continue
    end
    platform_names[short_name] = platform
end

# for each device, determine a prefix and see if the device can execute IL
target_devices = Dict{String, Tuple{String, Int, Bool}}()
for (pname, platform) in platform_names
    cl.platform!(platform)

    for (i, device) in enumerate(cl.devices(platform))
        cl.device!(device)
        il = "cl_khr_il_program" in device.extensions
        dname = if length(cl.devices(platform)) == 1
            pname
        else
            "$pname$i"
        end
        target_devices[dname] = (pname, i, il)
    end
end

# discover tests
tests = ParallelTestRunner.find_tests(@__DIR__)
const GPUArraysTestSuite = let
    mod = @eval module $(gensym())
        using ..Test
        import GPUArrays
        gpuarrays = pathof(GPUArrays)
        gpuarrays_root = dirname(dirname(gpuarrays))
        include(joinpath(gpuarrays_root, "test", "testsuite.jl"))
    end
    mod.TestSuite
end
for name in keys(GPUArraysTestSuite.tests)
    test = "gpuarrays/$name"
    tests[test] = :(GPUArraysTestSuite.tests[$name](CLArray))
end

# transform test expressions to run on the appropriate device
custom_tests = Dict{String, Expr}()
for (test, expr) in tests, (dname, (pname, devidx, il)) in target_devices
    # some tests require native execution capabilities
    requires_il = test in ["atomics", "execution", "intrinsics", "kernelabstractions",
                           "statistics", "linalg", ] || startswith(test, "gpuarrays/")
    if requires_il && !il
        continue
    end

    test_name = "$dname/$test"
    custom_tests["$dname/$test"] = quote
        cl.platform!($pname)
        cl.device!(cl.devices(cl.platform())[$devidx])
        $expr
    end
end

function test_filter(test)
    if load_preference(OpenCL, "default_memory_backend") == "svm" &&
       test == "gpuarrays/indexing scalar"
        # GPUArrays' scalar indexing tests assume that indexing is not supported
        return false
    end
    return true
end

const init_code = quote
    # the same
end


runtests(OpenCL, ARGS; discover_tests = false, custom_tests, test_filter, init_code)

But if @vchuravy figures out a way to preserve the testset failure we may still want to consider this approach here.

[vchuravy]

Test Summary:                                    |  Pass  Fail  Error  Broken  Total      Time
  Overall                                        | 12042     3      2       7  12054  12m39.2s
    gpuarrays/indexing scalar                    |   394     3      2            399     44.5s
      $(device.name)                             |   394     3      2            399     44.4s
        errors and warnings                      |     3     3                     6      1.3s

So the WorkerTestSet is working, I am just failing to interpolate.

[maleadt]

Lots of Float16-related failures here. @simeonschaub Could this be due to the upgrade to PoCL 7.1? I've tried restricting to 7.0 in the latest commit here.

[simeonschaub]

Yes, see #312 (comment), the jll builds are missing most of the math intrinsics. Restricting the version sounds ok for now, though we might want to instead just disable Float16 testing for the jll tests.

[maleadt]

Windows is problematic again.

[maleadt]

Windows failures are #393