Refactor the hierarchy.

candle-kernels/src/ternary.cu

@@ -0,0 +1,41 @@
+#include "cuda_utils.cuh"
+#include<stdint.h>
+
+#define WHERE_OP(TYPENAME, FN_NAME) \
+extern "C" __global__ void FN_NAME(  \
+    const size_t numel,  \
+    const size_t num_dims, \
+    const size_t *info, \
+    const uint32_t *ids, \
+    const TYPENAME *t, \
+    const TYPENAME *f, \
+    TYPENAME *out \
+) {  \
+    const size_t *dims = info; \
+    const size_t *strides = info + num_dims; \
+    const size_t *strides_t = info + 2*num_dims; \
+    const size_t *strides_f = info + 2*num_dims; \
+    if (is_contiguous(num_dims, dims, strides) \
+        && is_contiguous(num_dims, dims, strides_f) \
+        && is_contiguous(num_dims, dims, strides_t)) { \
+        for (unsigned int i = blockIdx.x * blockDim.x + threadIdx.x; i < numel; i += blockDim.x * gridDim.x) { \
+            out[i] = ids[i] ? t[i] : f[i]; \
+        } \
+    } \
+    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); \
+            unsigned strided_i_t = get_strided_index(i, num_dims, dims, strides_t); \
+            unsigned strided_i_f = get_strided_index(i, num_dims, dims, strides_f); \
+            out[i] = ids[strided_i] ? t[strided_i_t] : f[strided_i_f]; \
+        } \
+    } \
+} \
+
+#if __CUDA_ARCH__ >= 530
+WHERE_OP(__half, where_f16)
+#endif
+
+WHERE_OP(float, where_f32)
+WHERE_OP(double, where_f64)
+WHERE_OP(uint32_t, where_u32)