[cuda] build failure

[normandantzig1]

Host Environment

Windows 10
Cuda 11

To Reproduce
.\vcpkg install cuda

Failure logs
Error: Building package cuda:x86-windows failed with: BUILD_FAILED
Package: cuda:x86-windows
Vcpkg version: 2020.02.04-nohash

Additional context
Add any other context about the problem here, such as what you have already tried to resolve the issue.

[NancyLi1013]

Hi @normandantzig1
Thanks for posting this issue.
Could you please help confirm if the CUDA_PATH is correct?
Please addmessage("CUDA_PATH:$ENV{CUDA_PATH}") to portfile.cmake, and then rebuild this.

[ghost]

@NancyLi1013
@normandantzig1 mentions using cuda 11

• the cuda/cudnn ports specifically look for version 10.1.0
• looks like it is in RC (release candidate) status https://developer.nvidia.com/cuda-downloads
• no download for cudnn to support cude 11.0 on developer site https://developer.nvidia.com/rdp/cudnn-archive
• upgrading cuda to 11.0 may break the cudnn port
  

[NancyLi1013]

@timautry
Thanks for looking into this issue.
I have tried with cuda 11.0 and both cuda and cudnn can build successfully on my machine.

After downloading, the file name is cuda_11.0.1_451.22_win10.exe.

[normandantzig1]

Thank You. Let me see about the path.

[Neumann-A]

@JackBoosY: I have the same problem. nvcc is not getting found although I can open a cmd prompt and do nvcc without a problem. About the paths: For some reason i have CUDA_PATH_V10_2 but no CUDA_PATH variable and CUDA_PATH_V10_2 is not accesible from within VCPKG.

[Neumann-A]

vcpkg/toolsrc/src/vcpkg/base/system.process.cpp

Lines 305 to 315 in 3d2a7ca

	// Enables find_package(CUDA) and enable_language(CUDA) in CMake
	L"CUDA_PATH",
	L"CUDA_PATH_V9_0",
	L"CUDA_PATH_V9_1",
	L"CUDA_PATH_V10_0",
	L"CUDA_PATH_V10_1",
	L"CUDA_TOOLKIT_ROOT_DIR",
	// Environmental variable generated automatically by CUDA after installation
	L"NVCUDASAMPLES_ROOT",
	// Enables find_package(Vulkan) in CMake. Environmental variable generated by Vulkan SDK installer
	L"VULKAN_SDK",

needs updating and also

vcpkg/ports/cuda/portfile.cmake

Lines 9 to 15 in 3d2a7ca

	find_program(NVCC
	NAMES nvcc.exe
	PATHS
	ENV CUDA_PATH
	ENV CUDA_BIN_PATH
	PATH_SUFFIXES bin bin64
	DOC "Toolkit location."