wehub-resource-sync
40 lines
1.6 KiB
C++
40 lines
1.6 KiB
C++
/* Copyright 2023 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#ifndef TENSORFLOW_LITE_KERNELS_RNG_UTIL_H_
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#define TENSORFLOW_LITE_KERNELS_RNG_UTIL_H_
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#include <array>
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#include <cstdint>
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namespace tflite {
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namespace rng {
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// Implements the ThreeFry counter-based PRNG algorithm. Use 20 rounds.
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// Salmon et al. SC 2011. Parallel random numbers: as easy as 1, 2, 3.
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// http://www.thesalmons.org/john/random123/papers/random123sc11.pdf
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std::array<uint32_t, 2> Threefry2x32(uint32_t key_0, uint32_t key_1,
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std::array<uint32_t, 2> ctr);
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// Implements the Philox4x32 counter-based PRNG algorithm. Use 10 rounds.
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// Salmon et al. SC 2011. Parallel random numbers: as easy as 1, 2, 3.
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// http://www.thesalmons.org/john/random123/papers/random123sc11.pdf
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std::array<uint32_t, 4> Philox4x32(uint32_t key_0, uint32_t key_1,
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std::array<uint32_t, 4> ctr);
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} // namespace rng
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} // namespace tflite
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#endif // TENSORFLOW_LITE_KERNELS_RNG_UTIL_H_
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