Problem with cublasAlloc

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

I’m having a problem using cublasAlloc. It won’t return CUBLAS_STATUS_SUCCESS even if I build it using -deviceemu. The arrays are really small.

I’m using Windows XP 32 bits.

Thanks,
Rosália

2

Well… What DOES it return? Look at the manual and check the return values:

Return Values
CUBLAS_STATUS_NOT_INITIALIZED if CUBLAS library was not initialized
CUBLAS_STATUS_INVALID_VALUE if n <= 0 or elemSize <= 0
CUBLAS_STATUS_ALLOC_FAILED if the object could not be allocated
due to lack of resources.
CUBLAS_STATUS_SUCCESS if storage was successfully allocated

3

Hi,

So, I’ve tested a little further (sorry I didn’t do this before) and realized that cublas is not able to initialize, somehow. (cublasInit() returns CUBLAS_STATUS_NOT_INITIALIZED). I’m using -deviceemu, so it can’t be a device problem. It’s a very simple program, in fact, it’s the first example of cublas library documentation.

Any help would be appreciated,
Rosália

4

Ok, got it from another forum. You’re not supposed to link cublas.lib if you’re using -deviceemu, only cublasemu.lib.

Thanks for the help!