diff options
Diffstat (limited to 'src/core/CL/cl_kernels/l2_normalize.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/l2_normalize.cl | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/src/core/CL/cl_kernels/l2_normalize.cl b/src/core/CL/cl_kernels/l2_normalize.cl index f58e98bace..d230487030 100644 --- a/src/core/CL/cl_kernels/l2_normalize.cl +++ b/src/core/CL/cl_kernels/l2_normalize.cl @@ -23,7 +23,7 @@ */ #include "helpers.h" -/** This kernel performs reduction given an operation. +/** This kernel performs l2 normalization. (NCHW) * * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float * @note The data size must be passed at compile time using -DDATA_SIZE e.g. -DDATA_SIZE=32 @@ -42,7 +42,7 @@ * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor * @param[in] epsilon Epsilon value */ -__kernel void l2_normalize( +__kernel void l2_normalize_nchw( VECTOR_DECLARATION(src), VECTOR_DECLARATION(sum), VECTOR_DECLARATION(dst), @@ -55,7 +55,53 @@ __kernel void l2_normalize( VEC_DATA_TYPE(DATA_TYPE, 16) in = vload16(0, (__global DATA_TYPE *)src.ptr); VEC_DATA_TYPE(DATA_TYPE, 16) - normalize_value = (VEC_DATA_TYPE(DATA_TYPE, 16))native_rsqrt(fmax(((__global DATA_TYPE *)sum.ptr)[0], epsilon)); + normalize_value = (VEC_DATA_TYPE(DATA_TYPE, 16))rsqrt(fmax(((__global DATA_TYPE *)sum.ptr)[0], epsilon)); + + vstore16(in * normalize_value, 0, (__global DATA_TYPE *)dst.ptr); +} + +/** This kernel performs l2 normalization. (NHWC) + * + * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float + * @note The data size must be passed at compile time using -DDATA_SIZE e.g. -DDATA_SIZE=32 + * + * @param[in] src_ptr Pointer to the source tensor. Supported data types: F16/F32 + * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] src_step_x src_stride_x * number of elements along Y processed per workitem(in bytes) + * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes) + * @param[in] src_step_y src_stride_y * number of elements along X processed per workitem(in bytes) + * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[in] sum_ptr Pointer to the source tensor. Supported data types: F16/F32 + * @param[in] sum_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] sum_step_x sum_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] sum_stride_y Stride of the source tensor in Y dimension (in bytes) + * @param[in] sum_step_y sum_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] sum_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr + * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) + * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) + * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor + * @param[in] epsilon Epsilon value + */ +__kernel void l2_normalize_nhwc( + IMAGE_DECLARATION(src), + IMAGE_DECLARATION(sum), + IMAGE_DECLARATION(dst), + DATA_TYPE epsilon) +{ + Image src = CONVERT_TO_IMAGE_STRUCT(src); + Image sum = CONVERT_TO_IMAGE_STRUCT(sum); + Image dst = CONVERT_TO_IMAGE_STRUCT(dst); + + VEC_DATA_TYPE(DATA_TYPE, 16) + in = vload16(0, (__global DATA_TYPE *)src.ptr); + VEC_DATA_TYPE(DATA_TYPE, 16) + sums = vload16(0, (__global DATA_TYPE *)sum.ptr); + + VEC_DATA_TYPE(DATA_TYPE, 16) + normalize_value = (VEC_DATA_TYPE(DATA_TYPE, 16))rsqrt(fmax(sums, epsilon)); vstore16(in * normalize_value, 0, (__global DATA_TYPE *)dst.ptr); }
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