Could a CUDA kernel call a cublas function?

Question

I know it sound weird, but here is my scenario:

I need to do a matrix-matrix multiplication (A(n*k)*B(k*n)), but I only needs the diagonal elements to be evaluated f

Answer 1

Make sure you are using the device library to call the cublas. You can't use the same library that you used to call it from the host; details about using the cuda device library can be found on cuda toolkit: http://docs.nvidia.com/cuda/cublas/index.html#device-api

Look at the cuda 5 samples under 7_CUDALibraries/ .