Y(vetor)←αAX + βY

This function multiplies A * X (after transposing A, if needed) and multiplies the resulting matrix by alpha.
It then multiplies vector Y by beta. It stores the sum of these two products in vector Y.

template <>
void caffe_cpu_gemv<float>(const CBLAS_TRANSPOSE TransA, const
 
 int M,
    const int N, const float alpha, const float* A, const float* x,
    const float beta, float* y) {
  cblas_sgemv(CblasRowMajor, TransA, M, N, alpha, A, N, x, 1, beta, y, 1);
}