小编est*_*jop的帖子

我正在尝试加速多核架构上的矩阵乘法.为此,我尝试同时使用线程和SIMD.但我的结果并不好.我通过顺序矩阵乘法测试加速:

void sequentialMatMul(void* params)
{
    cout << "SequentialMatMul started.";
    int i, j, k;
    for (i = 0; i < N; i++)
    {
        for (k = 0; k < N; k++)
        {
            for (j = 0; j < N; j++)
            {
                X[i][j] += A[i][k] * B[k][j];
            }
        }
    }
    cout << "\nSequentialMatMul finished.";
}

我尝试将线程和SIMD添加到矩阵乘法中,如下所示:

void threadedSIMDMatMul(void* params)
{
    bounds *args = (bounds*)params;
    int lowerBound = args->lowerBound;
    int upperBound = args->upperBound;
    int idx = args->idx;

    int i, j, k;
    for (i …