Intel C++ Composer XE 2011( -vec(Linux* OS)/Qvec(Window*OS))Auto-vectorization
Vectorization
void matvec(int size1, int size2, FTYPE a[][size2], FTYPE b[], FTYPE x[])
{
int i, j;
for (i = 0; i < size1; i++) {
b[i] = 0;
for (j = 0;j < size2; j++) {
b[i] += a[i][j] * x[j];
}
}
}