(unhandled): CUDA Exception: invalid argument

[rrnewton]

Hi there,

I just started using accelerate HEAD (accelerate 59e0257, accelerate-cuda d60e098baa1c492da39a2) on a new machine (Mac os) and immediately ran into some errors.

I was in the middle of modifying an nbody benchmark, here:

https://github.com/iu-parfunc/array-dsl-benchmarks/commit/fa9aa33c88c6c323b6926bea22adc678447f9473

First thing was an error on the non-existent ~/.accelerate dir:

naive_cuda.exe: /Users/rrnewton/.accelerate: canonicalizePath: does not exist (No such file or directory)

I created that directory by hand, but then I got this error:

naive_cuda.exe: 
*** Internal error in package accelerate-cuda ***
*** Please submit a bug report at https://github.com/AccelerateHS/accelerate/issues
./Data/Array/Accelerate/CUDA.hs:145 (unhandled): CUDA Exception: invalid argument

[tmcdonell]

Huh, canonicalizePath doesn't throw an exception for me when the directory doesn't exist? I'll add a mkdir.

@tranma got some exceptions recently using ghc-7.6.2-x86_64. This might be the same problem; I'll take a look. (I'm still on 7.6.1 and haven't come across it, and I think we all have the same machine)

[tranma]

I also simply created a directory for canonicalizePath, apparently the behaviour changed at some point - I don't think it matters.

However running the CUDA backend on anything (regression, manually constructed acc's in ghci) results in the same error as above. This happens on 7.6.* on OSX 10.8.

[tmcdonell]

Finally tracked this down. Please update to the latest CUDA bindings package: http://hackage.haskell.org/package/cuda

[rrnewton]

Thanks!