Call cublas in a kernel

Question

I want to use Zgemv in parallel.

__global__ void S_Cphir(cuDoubleComplex *S,cuDoubleComplex *A,cuDoubleComplex *B, int n,int l)
{
    ....
cublasZgemv(handl         


        

Answer 1

Use the CUBLAS Device Library sample code as your reference. On a standard CUDA 5.5 install, you'll find it at:

/usr/local/cuda/samples/7_CUDALibraries/simpleDevLibCUBLAS

Referring to the Makefile in that directory, your compile commands should be like this:

nvcc -arch=sm_35 -rdc=true -o main.v2 time_propagation_cublas.cu -lcublas -lcublas_device -lcudadevrt