code: public static int cusparseScsrmv(
          cusparseHandle handle, 
          int transA, 
          int m, 
          int n, 
          int nnz, 
          Pointer alpha, 
          cusparseMatDescr descrA, 
          Pointer csrSortedValA, 
          Pointer csrSortedRowPtrA, 
          Pointer csrSortedColIndA, 
          Pointer x, 
          Pointer beta, 
          Pointer y)
      {
          return checkResult(cusparseScsrmvNative(handle, transA, m, n, nnz, alpha, descrA, csrSortedValA, csrSortedRowPtrA, csrSortedColIndA, x, beta, y));
      }
docs: Description: Matrix-vector multiplication  y = alpha * op(A) * x  + beta * y,
  where A is a sparse matrix in CSR storage format, x and y are dense vectors.