diff options
| author | txh18 <cloudygooseg@gmail.com> | 2015-11-17 19:43:13 +0800 |
|---|---|---|
| committer | txh18 <cloudygooseg@gmail.com> | 2015-11-17 19:43:13 +0800 |
| commit | b8b6bb0a6b9fb9b8d72de42d27f598bfddd1cd0e (patch) | |
| tree | 0de296b8f1d530e6b1b3cb2c514fc0c775a799be /nerv/lib/matrix/generic/cukernel.cu | |
| parent | 317ff51cae8dcfaff26855c42ce99656b4d293b5 (diff) | |
using atomicAdd for select_linear update
Diffstat (limited to 'nerv/lib/matrix/generic/cukernel.cu')
| -rw-r--r-- | nerv/lib/matrix/generic/cukernel.cu | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/nerv/lib/matrix/generic/cukernel.cu b/nerv/lib/matrix/generic/cukernel.cu index d042d48..8885b41 100644 --- a/nerv/lib/matrix/generic/cukernel.cu +++ b/nerv/lib/matrix/generic/cukernel.cu @@ -231,7 +231,8 @@ __global__ void cudak_(update_select_rows)(MATRIX_ELEM *c, const MATRIX_ELEM *a, int i = blockIdx.y * blockDim.y + threadIdx.y; if (i >= nrow_a || j >= ncol_a) return; int i_c = lrintf(idx[i]); - c[j + i_c * stride_c] = c[j + i_c * stride_c] * (1 - beta * alpha) + a[j + i * stride_a] * alpha; + //c[j + i_c * stride_c] = c[j + i_c * stride_c] * (1 - beta * alpha) + a[j + i * stride_a] * alpha; + atomicAdd(c + j + i_c * stride_c, c[j + i_c * stride_c] * (- beta * alpha) + a[j + i * stride_a] * alpha); } __global__ void cudak_(expand_frm)(const MATRIX_ELEM *a, MATRIX_ELEM *b, |