diff options
Diffstat (limited to 'matrix/generic')
| -rw-r--r-- | matrix/generic/cukernel.cu | 31 | ||||
| -rw-r--r-- | matrix/generic/cumatrix.c | 24 |
2 files changed, 45 insertions, 10 deletions
diff --git a/matrix/generic/cukernel.cu b/matrix/generic/cukernel.cu index ffae5ed..d6c8adc 100644 --- a/matrix/generic/cukernel.cu +++ b/matrix/generic/cukernel.cu @@ -237,9 +237,18 @@ __global__ void cudak_(rearrange_frm)(const MATRIX_ELEM *a, MATRIX_ELEM *b, b[j + i * stride] = a[j / step + (j % step) * orig_dim + i * stride]; } -__global__ void cudak_(scale_row)(const MATRIX_ELEM *a, MATRIX_ELEM *b, - int nrow, int ncol, - int stride) { +__global__ void cudak_(scale_rows_by_col)(const MATRIX_ELEM *a, MATRIX_ELEM *b, + int nrow, int ncol, + int astride, int bstride) { + int j = blockIdx.x * blockDim.x + threadIdx.x; + int i = blockIdx.y * blockDim.y + threadIdx.y; + if (i >= nrow || j >= ncol) return; + b[j + i * bstride] *= a[i * astride]; +} + +__global__ void cudak_(scale_rows_by_row)(const MATRIX_ELEM *a, MATRIX_ELEM *b, + int nrow, int ncol, + int stride) { int j = blockIdx.x * blockDim.x + threadIdx.x; int i = blockIdx.y * blockDim.y + threadIdx.y; if (i >= nrow || j >= ncol) return; @@ -526,11 +535,23 @@ extern "C" { cudaStreamSynchronize(0); } - void cudak_(cuda_scale_row)(const Matrix *a, Matrix *b) { + void cudak_(cuda_scale_rows_by_col)(const Matrix *a, Matrix *b) { + dim3 threadsPerBlock(CUDA_THREADS_N, CUDA_THREADS_N); + dim3 numBlocks(CEIL_DIV(b->ncol, threadsPerBlock.x), + CEIL_DIV(b->nrow, threadsPerBlock.y)); + cudak_(scale_rows_by_col)<<<numBlocks, threadsPerBlock>>> \ + (MATRIX_ELEM_PTR(a), MATRIX_ELEM_PTR(b), + b->nrow, b->ncol, + a->stride / sizeof(MATRIX_ELEM), + b->stride / sizeof(MATRIX_ELEM)); + cudaStreamSynchronize(0); + } + + void cudak_(cuda_scale_rows_by_row)(const Matrix *a, Matrix *b) { dim3 threadsPerBlock(CUDA_THREADS_N, CUDA_THREADS_N); dim3 numBlocks(CEIL_DIV(b->ncol, threadsPerBlock.x), CEIL_DIV(b->nrow, threadsPerBlock.y)); - cudak_(scale_row)<<<numBlocks, threadsPerBlock>>> \ + cudak_(scale_rows_by_row)<<<numBlocks, threadsPerBlock>>> \ (MATRIX_ELEM_PTR(a), MATRIX_ELEM_PTR(b), b->nrow, b->ncol, b->stride / sizeof(MATRIX_ELEM)); cudaStreamSynchronize(0); diff --git a/matrix/generic/cumatrix.c b/matrix/generic/cumatrix.c index a8e18e0..b5d1a35 100644 --- a/matrix/generic/cumatrix.c +++ b/matrix/generic/cumatrix.c @@ -37,8 +37,8 @@ static int nerv_matrix_(add)(lua_State *L) { Matrix *c = luaT_checkudata(L, 1, nerv_matrix_(tname)); Matrix *a = luaT_checkudata(L, 2, nerv_matrix_(tname)); Matrix *b = luaT_checkudata(L, 3, nerv_matrix_(tname)); - MATRIX_ELEM alpha = luaL_checknumber(L, 4); /* alpha */ - MATRIX_ELEM beta = luaL_checknumber(L, 5); /* alpha */ + MATRIX_ELEM alpha = luaL_checknumber(L, 4); + MATRIX_ELEM beta = luaL_checknumber(L, 5); CHECK_SAME_DIMENSION(a, b); CHECK_SAME_DIMENSION(a, c); nerv_matrix_(add_)(L, a, b, c, alpha, beta); @@ -396,7 +396,20 @@ static int nerv_matrix_(rearrange_frm)(lua_State *L) { return 0; } -static int nerv_matrix_(scale_row)(lua_State *L) { +static int nerv_matrix_(scale_rows_by_col)(lua_State *L) { + Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname)); + Matrix *b = luaT_checkudata(L, 2, nerv_matrix_(tname)); + if (a->nrow != b->nrow) + nerv_error(L, "the number of rows is not the same"); + if (b->ncol != 1) + nerv_error(L, "a column vector is expected"); + PROFILE_START + cudak_(cuda_scale_rows_by_col)(b, a); + PROFILE_STOP + return 0; +} + +static int nerv_matrix_(scale_rows_by_row)(lua_State *L) { Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname)); Matrix *b = luaT_checkudata(L, 2, nerv_matrix_(tname)); if (a->ncol != b->ncol) @@ -404,7 +417,7 @@ static int nerv_matrix_(scale_row)(lua_State *L) { if (b->nrow != 1) nerv_error(L, "a row vector is expected"); PROFILE_START - cudak_(cuda_scale_row)(b, a); + cudak_(cuda_scale_rows_by_row)(b, a); PROFILE_STOP return 0; } @@ -434,7 +447,8 @@ static const luaL_Reg nerv_matrix_(extra_methods)[] = { {"copy_rows_fromh_by_idx", nerv_matrix_(copy_rows_fromh_by_idx)}, {"expand_frm", nerv_matrix_(expand_frm)}, {"rearrange_frm", nerv_matrix_(rearrange_frm)}, - {"scale_row", nerv_matrix_(scale_row)}, + {"scale_rows_by_row", nerv_matrix_(scale_rows_by_row)}, + {"scale_rows_by_col", nerv_matrix_(scale_rows_by_col)}, {NULL, NULL} }; |