Issues with the code of SUM Reduction

[xuxy09]

cuda_programming/03_sum_reduction/diverged/sumReduction.cu

Line 75 in 8711be0

sumReduction<<<1, TB_SIZE>>> (d_v_r, d_v_r);

Shouldn't the second call be <<<1, GRID_SIZE>>> instead of <<<1, TB_SIZE>>>? I think GRID_SIZE is the number of partial sums.

[101001000]

I had the same thoughts

[weiminruan]

I have the same issue, i think it should be <<<1, GRID_SIZE>>>, and for the later version <<<1, GRID_SIZE/2>>> for preprocessing.