Support Windows about cudart.jl

[timholy]

This would be fantastic. I'm so glad you're going to look into this!

[moon6pence]

Succeeded in passing testcases in windows: https://github.com/khkim2/CUDArt.jl/commit/4582e77eb593b88cd0dc08d73b5ecb22d3e1b9ad

It is just passing testcase in "certain" environment. I will cover some more CUDA Toolkit versions and research how other Julia packages are doing in Windows.

• It seems that there's no way to use nvcc in mingw, so we have to build ptx files and wrapcuda.dll in VS2012 native tools command prompt.
• wrapcuda.c: __declspec( dllexport ) was required to export functions in DLL.

I will write nmake files for building wrapcuda and ptx files instead of build_*.bat files.

[timholy]

Very nice! Whenever you're ready, just submit as a PR.

[moon6pence]

Hello, I'm back.
I'm sorry that I just threw issue and did nothing yet.

Recently my work is aim to julia and I have chance to dig up again.
I hope that there's some updates soon.

[timholy]

That will be great, glad to hear it!

Presumably you know about https://github.com/maxruby/OpenCV.jl, since (if I remember correctly) that was another of your interests.

[moon6pence]

Yes, I have been watching mailing lists and very excited to hear that.

Support OpenCV GPU functions with CudaArray will be another possible issues, too.
I used to mix CUDA kernels and OpenCV GPU functions while implement image processing algorithms in C++.

[moon6pence]

https://github.com/moon6pence/CUDArt.jl/commits/support_windows

It works well with Visual Studio 2013 and CUDA 6.5, involve build.jl. Pkg.build("CUDArt")
As I said, visual studio command prompt is required because we cannot use nvcc in mingw.

I would decide support how many versions of VS (maybe 2010, 2012, 2013) and CUDA.

[timholy]

Cool! Certainly one of the things we probably both need to do is make it work for different paths---as you say, it seems especially important not to require a specific version of VS.

But this looks very close, so please do submit as a pull request when you feel ready.