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https://github.com/NVIDIA/TensorRT-LLM.git
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f430a4b447
* Update TensorRT-LLM --------- Co-authored-by: IbrahimAmin <ibrahimamin532@gmail.com> Co-authored-by: Fabian Joswig <fjosw@users.noreply.github.com> Co-authored-by: Pzzzzz <hello-cd.plus@hotmail.com> Co-authored-by: CoderHam <hemant@cohere.com> Co-authored-by: Konstantin Lopuhin <kostia.lopuhin@gmail.com>
142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
/*
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* Copyright (c) 2024, 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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#pragma once
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namespace tensorrt_llm
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{
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namespace runtime
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{
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class SpeculativeDecodingMode
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{
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// [WARNING] KEEP BELOW DEFINITION IN SYNC WITH tensorrt_llm/models/modeling_utils.py
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public:
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static auto constexpr None()
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{
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return SpeculativeDecodingMode{kNone};
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}
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static auto constexpr DraftTokensExternal()
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{
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return SpeculativeDecodingMode{kDraftTokensExternal};
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}
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static auto constexpr Medusa()
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{
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return SpeculativeDecodingMode{kMedusa};
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}
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static auto constexpr LookaheadDecoding()
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{
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return SpeculativeDecodingMode{kLookaheadDecoding};
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}
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bool constexpr isNone() const
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{
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return anyBitSet(kNone);
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}
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bool constexpr isDraftTokensExternal() const
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{
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return anyBitSet(kDraftTokensExternal);
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}
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bool constexpr isMedusa() const
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{
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return anyBitSet(kMedusa);
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}
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bool constexpr isLookaheadDecoding() const
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{
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return anyBitSet(kLookaheadDecoding);
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}
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bool constexpr requiresAttentionMask() const
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{
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return anyBitSet(kLookaheadDecoding | kMedusa);
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}
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bool constexpr predictsDraftTokens() const
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{
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return anyBitSet(kLookaheadDecoding | kMedusa);
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}
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bool constexpr needsKVCacheRewind() const
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{
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return anyBitSet(kLookaheadDecoding | kMedusa);
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}
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bool constexpr hasDraftLogits() const
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{
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return anyBitSet(kMedusa);
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}
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using UnderlyingType = uint8_t;
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bool operator==(SpeculativeDecodingMode const& other) const
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{
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return mState == other.mState;
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}
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constexpr SpeculativeDecodingMode(UnderlyingType state)
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: mState(state)
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{
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}
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private:
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// No speculative decoding is used.
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static UnderlyingType constexpr kNone{1u << 0};
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static UnderlyingType constexpr kDraftTokensExternal{1u << 1};
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static UnderlyingType constexpr kMedusa{1u << 2};
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static UnderlyingType constexpr kLookaheadDecoding{1u << 3};
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bool constexpr anyBitSet(UnderlyingType bits) const
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{
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return (mState & bits) != 0;
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}
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bool constexpr allBitSet(UnderlyingType bits) const
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{
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return (mState & bits) == bits;
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}
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UnderlyingType mState{kNone};
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};
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static_assert(SpeculativeDecodingMode::None().isNone());
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static_assert(!SpeculativeDecodingMode::None().isDraftTokensExternal());
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static_assert(!SpeculativeDecodingMode::None().isMedusa());
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static_assert(!SpeculativeDecodingMode::None().isLookaheadDecoding());
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static_assert(SpeculativeDecodingMode::DraftTokensExternal().isDraftTokensExternal());
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static_assert(!SpeculativeDecodingMode::DraftTokensExternal().isNone());
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static_assert(!SpeculativeDecodingMode::DraftTokensExternal().isMedusa());
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static_assert(!SpeculativeDecodingMode::DraftTokensExternal().isLookaheadDecoding());
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static_assert(SpeculativeDecodingMode::Medusa().isMedusa());
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static_assert(!SpeculativeDecodingMode::Medusa().isNone());
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static_assert(!SpeculativeDecodingMode::Medusa().isDraftTokensExternal());
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static_assert(!SpeculativeDecodingMode::Medusa().isLookaheadDecoding());
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static_assert(SpeculativeDecodingMode::LookaheadDecoding().isLookaheadDecoding());
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static_assert(!SpeculativeDecodingMode::LookaheadDecoding().isNone());
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static_assert(!SpeculativeDecodingMode::LookaheadDecoding().isDraftTokensExternal());
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static_assert(!SpeculativeDecodingMode::LookaheadDecoding().isMedusa());
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} // namespace runtime
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} // namespace tensorrt_llm
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