tests/std: Also test the latest version of CUDA

[StephanTLavavej]

#639 was resolved by #1519 and #1539 adding test coverage for CUDA 10.1 Update 2. #1544 made this our minimum required version:

STL/stl/inc/yvals_core.h

Lines 509 to 514 in 721e3ad

	#ifdef __CUDACC__
	#if __CUDACC_VER_MAJOR__ < 10 \
	|| (__CUDACC_VER_MAJOR__ == 10 \
	&& (__CUDACC_VER_MINOR__ < 1 || (__CUDACC_VER_MINOR__ == 1 && __CUDACC_VER_BUILD__ < 243)))
	#error STL1002: Unexpected compiler version, expected CUDA 10.1 Update 2 or newer.
	#endif // ^^^ old CUDA ^^^

As of 2021-01-29, the latest version of CUDA is 11.2, see: https://developer.nvidia.com/cuda-downloads

We need to continue testing CUDA 10.1 Update 2 until we decide to increase our minimum required version. However, we should additionally be testing the latest version side-by-side. (Especially because CUDA 11 added support for C++17, see: https://news.developer.nvidia.com/cuda-11-toolkit/ )

This will involve changing our Virtual Machine Scale Set script to install the old and new CUDA versions side-by-side, and changing our test to invoke the different versions; at this time I don't know exactly what those changes will look like. Existing code:

STL/azure-devops/provision-image.ps1

Lines 147 to 153 in 721e3ad

	$CudaUrl = `
	'https://developer.download.nvidia.com/compute/cuda/10.1/Prod/local_installers/cuda_10.1.243_426.00_win10.exe'
	$CudaFeatures = 'nvcc_10.1 cuobjdump_10.1 nvprune_10.1 cupti_10.1 gpu_library_advisor_10.1 memcheck_10.1 ' + `
	'nvdisasm_10.1 nvprof_10.1 visual_profiler_10.1 visual_studio_integration_10.1 cublas_10.1 cublas_dev_10.1 ' + `
	'cudart_10.1 cufft_10.1 cufft_dev_10.1 curand_10.1 curand_dev_10.1 cusolver_10.1 cusolver_dev_10.1 cusparse_10.1 ' + `
	'cusparse_dev_10.1 nvgraph_10.1 nvgraph_dev_10.1 npp_10.1 npp_dev_10.1 nvrtc_10.1 nvrtc_dev_10.1 nvml_dev_10.1 ' + `
	'occupancy_calculator_10.1 fortran_examples_10.1'

STL/azure-devops/provision-image.ps1

Lines 301 to 338 in 721e3ad

	<#
	.SYNOPSIS
	Installs NVIDIA's CUDA Toolkit.
	.DESCRIPTION
	InstallCuda installs the CUDA Toolkit with the features specified as a
	space-separated list of strings in $Features.
	.PARAMETER Url
	The URL of the CUDA installer.
	.PARAMETER Features
	A space-separated list of features to install.
	#>
	Function InstallCuda {
	Param(
	[String]$Url,
	[String]$Features
	)
	try {
	Write-Host 'Downloading CUDA...'
	[string]$installerPath = Get-TempFilePath -Extension 'exe'
	curl.exe -L -o $installerPath -s -S $Url
	Write-Host 'Installing CUDA...'
	$proc = Start-Process -FilePath $installerPath -ArgumentList @('-s ' + $Features) -Wait -PassThru
	$exitCode = $proc.ExitCode
	if ($exitCode -eq 0) {
	Write-Host 'Installation successful!'
	}
	else {
	Write-Error "Installation failed! Exited with $exitCode."
	}
	}
	catch {
	Write-Error "Failed to install CUDA! $($_.Exception.Message)"
	}
	}

STL/azure-devops/provision-image.ps1

Line 379 in 721e3ad

InstallCuda -Url $CudaUrl -Features $CudaFeatures

STL/tests/std/tests/GH_000639_nvcc_include_all/env.lst

Line 4 in 721e3ad

PM_COMPILER="nvcc" PM_CL="--x cu -Xcompiler -Od,-EHsc,-nologo,-W4,-WX,-openmp"

[StephanTLavavej]

We're now requiring/testing CUDA 11.6, but still only in C++14 mode. We should still investigate testing the latest version side-by-side, with C++17/etc. coverage as it becomes available.