Refactor the hierarchy.

candle-kernels/src/affine.cu

@@ -0,0 +1,37 @@
+#include "cuda_utils.cuh"
+#include<stdint.h>
+
+#define AFFINE_OP(TYPENAME, FN_NAME) \
+extern "C" __global__ void FN_NAME(  \
+    const size_t numel,  \
+    const size_t num_dims, \
+    const size_t *info, \
+    const TYPENAME *inp, \
+    TYPENAME *out, \
+    const TYPENAME mul, \
+    const TYPENAME add \
+) {  \
+    const size_t *dims = info; \
+    const size_t *strides = info + num_dims; \
+    if (is_contiguous(num_dims, dims, strides)) { \
+        for (unsigned int i = blockIdx.x * blockDim.x + threadIdx.x; i < numel; i += blockDim.x * gridDim.x) { \
+            TYPENAME x = inp ? inp[i] : out[i]; \
+            out[i] = x * mul + add; \
+        } \
+    } \
+    else { \
+        for (unsigned int i = blockIdx.x * blockDim.x + threadIdx.x; i < numel; i += blockDim.x * gridDim.x) { \
+            unsigned strided_i = get_strided_index(i, num_dims, dims, strides); \
+            TYPENAME x = inp ? inp[strided_i] : out[i]; \
+            out[i] = x * mul + add; \
+        } \
+    } \
+} \
+
+#if __CUDA_ARCH__ >= 530
+AFFINE_OP(__half, affine_f16)
+#endif
+
+AFFINE_OP(float, affine_f32)
+AFFINE_OP(double, affine_f64)
+AFFINE_OP(uint32_t, affine_u32)