51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
/**
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* Copyright 2021 Huawei Technologies Co., Ltd
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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 "mindquantum/utils.h"
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namespace mindspore {
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namespace mindquantum {
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ComplexType ComplexInnerProduct(const Simulator::StateVector &v1, const Simulator::StateVector &v2, unsigned len) {
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CalcType real_part = 0;
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CalcType imag_part = 0;
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#pragma omp parallel for reduction(+ : real_part, imag_part)
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for (Index i = 0; i < len; i++) {
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real_part += v1[i].real() * v2[i].real() + v1[i].imag() * v2[i].imag();
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imag_part += v1[i].real() * v2[i].imag() - v1[i].imag() * v2[i].real();
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}
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ComplexType result = {real_part, imag_part};
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return result;
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}
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ComplexType ComplexInnerProductWithControl(const Simulator::StateVector &v1, const Simulator::StateVector &v2,
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Index len, std::size_t ctrlmask) {
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CalcType real_part = 0;
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CalcType imag_part = 0;
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#pragma omp parallel for reduction(+ : real_part, imag_part)
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for (std::size_t i = 0; i < len; i++) {
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if ((i & ctrlmask) == ctrlmask) {
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real_part += v1[i].real() * v2[i].real() + v1[i].imag() * v2[i].imag();
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imag_part += v1[i].real() * v2[i].imag() - v1[i].imag() * v2[i].real();
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}
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}
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ComplexType result = {real_part, imag_part};
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return result;
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}
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} // namespace mindquantum
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} // namespace mindspore
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