wehub-resource-sync
64 lines
2.0 KiB
Plaintext
64 lines
2.0 KiB
Plaintext
/*
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* SPDX-FileCopyrightText: Copyright (c) 1993-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "groupNormalizationPlugin.h"
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namespace nvinfer1
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{
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namespace plugin
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{
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template <typename T, unsigned TPB>
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__global__ void scaleShiftChannelsInplaceKernel(T* inOut, const int ld, const float* beta, const float* gamma)
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{
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// grid is blocks x C x B
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// ld should be H*W
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// blockIdx.z = batch
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// blockIdx.y = channel
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// blockIdx.x = block per col
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const T b = beta[blockIdx.y];
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const T g = gamma[blockIdx.y];
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const int offset = (blockIdx.z * gridDim.y + blockIdx.y) * ld;
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const int tx = blockIdx.x * TPB + threadIdx.x;
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if (tx < ld)
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{
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inOut[offset + tx] = g * inOut[offset + tx] + b;
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}
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}
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template <typename T>
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cudaError_t scaleShiftChannelsInplace(T* inOut, const int B, const int C, const int channelVolume, const float* beta,
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const float* gamma, cudaStream_t stream)
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{
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constexpr int TPB = 256;
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const int colBlocks = (channelVolume + TPB - 1) / TPB;
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const dim3 grid(colBlocks, C, B);
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scaleShiftChannelsInplaceKernel<T, TPB><<<grid, TPB, 0, stream>>>(inOut, channelVolume, beta, gamma);
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return cudaPeekAtLastError();
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}
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template cudaError_t scaleShiftChannelsInplace<float>(float* inOut, const int B, const int C, const int channelVolume, const float* beta,
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const float* gamma, cudaStream_t stream);
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} /* plugin */
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} /* nvinfer1 */
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