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https://github.com/NVIDIA/TensorRT-LLM.git
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250d9c293d
* Update TensorRT-LLM --------- Co-authored-by: Bhuvanesh Sridharan <bhuvan.sridharan@gmail.com> Co-authored-by: Morgan Funtowicz <funtowiczmo@gmail.com> Co-authored-by: Eddie-Wang1120 <wangjinheng1120@163.com> Co-authored-by: meghagarwal <16129366+megha95@users.noreply.github.com>
75 lines
2.6 KiB
Plaintext
75 lines
2.6 KiB
Plaintext
/*
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* Copyright (c) 2020-2023, NVIDIA CORPORATION. All rights reserved.
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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 "tensorrt_llm/common/cudaUtils.h"
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#include "tensorrt_llm/kernels/onlineSoftmaxBeamsearchKernels.h"
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using namespace tensorrt_llm::common;
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namespace tensorrt_llm
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{
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namespace kernels
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{
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template <typename T, int MAX_K>
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void topK_softMax_kernelLauncher(T const* log_probs, T const* bias, void* temp_storage, int const temp_storage_size,
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BeamHypotheses& beam_hyps, cudaStream_t stream);
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#define CASE_K(MAX_K) \
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topK_softMax_kernelLauncher<T, MAX_K>(log_probs, bias, temp_storage, temp_storage_size, beam_hyps, stream); \
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break;
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template <typename T>
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void invokeTopkSoftMax(T const* log_probs, T const* bias, void* temp_storage, int const temp_storage_size,
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BeamHypotheses& beam_hyps, cudaStream_t stream)
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{
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int log_beam_width(0);
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int recursor(beam_hyps.beam_width - 1);
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while (recursor >>= 1)
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++log_beam_width;
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switch (log_beam_width)
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{
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case 0:
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case 1: // 0 < beam_width <= 4
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CASE_K(4)
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case 2: // 4 < beam_width <= 8
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CASE_K(8)
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#ifndef FAST_BUILD // For fast build, skip case 3, 4, 5
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case 3: // 9 < beam_width <= 16
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CASE_K(16)
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case 4: // 16 < beam_width <= 32
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CASE_K(32)
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case 5: // 32 < beam_width <= 64
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CASE_K(64)
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#endif // FAST_BUILD
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default:
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throw std::runtime_error(fmtstr("%s:%d Topk kernel of beam search does not support beam_width=%d", __FILE__,
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__LINE__, beam_hyps.beam_width));
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}
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}
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#undef CASE_K
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template void invokeTopkSoftMax<float>(float const* log_probs, float const* bias, void* tmp_storage,
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int const temp_storage_size, BeamHypotheses& beam_hyps, cudaStream_t stream);
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template void invokeTopkSoftMax<half>(half const* log_probs, half const* bias, void* tmp_storage,
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int const temp_storage_size, BeamHypotheses& beam_hyps, cudaStream_t stream);
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} // namespace kernels
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} // namespace tensorrt_llm
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