mirror of https://github.com/gnss-sdr/gnss-sdr
244 lines
7.5 KiB
C
244 lines
7.5 KiB
C
/*!
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* \file volk_gnsssdr_64f_accumulator_64f.h
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* \brief Volk protokernel: 64 bits (double) scalar accumulator
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* \authors <ul>
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* <li> Andrés Cecilia, 2014. a.cecilia.luque(at)gmail.com
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* </ul>
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*
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* Volk protokernel that implements an accumulator of char values
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2014 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef INCLUDED_volk_gnsssdr_64f_accumulator_64f_u_H
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#define INCLUDED_volk_gnsssdr_64f_accumulator_64f_u_H
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#include <volk_gnsssdr/volk_gnsssdr_common.h>
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#include <inttypes.h>
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#include <stdio.h>
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#ifdef LV_HAVE_AVX
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#include <immintrin.h>
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/*!
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\brief Accumulates the values in the input buffer
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\param result The accumulated result
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\param inputBuffer The buffer of data to be accumulated
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\param num_points The number of values in inputBuffer to be accumulated
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*/
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static inline void volk_gnsssdr_64f_accumulator_64f_u_avx(double* result,const double* inputBuffer, unsigned int num_points){
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double returnValue = 0;
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const unsigned int sse_iters = num_points / 4;
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const double* aPtr = inputBuffer;
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__VOLK_ATTR_ALIGNED(32) double tempBuffer[4];
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__m256d accumulator = _mm256_setzero_pd();
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__m256d aVal = _mm256_setzero_pd();
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for(unsigned int number = 0; number < sse_iters; number++)
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{
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aVal = _mm256_loadu_pd(aPtr);
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accumulator = _mm256_add_pd(accumulator, aVal);
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aPtr += 4;
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}
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_mm256_storeu_pd((double*)tempBuffer,accumulator);
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for(unsigned int i = 0; i<4; ++i){
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returnValue += tempBuffer[i];
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}
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for(unsigned int i = 0; i<(num_points % 4); ++i){
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returnValue += (*aPtr++);
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}
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*result = returnValue;
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}
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#endif /* LV_HAVE_AVX */
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#ifdef LV_HAVE_SSE3
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#include <pmmintrin.h>
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/*!
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\brief Accumulates the values in the input buffer
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\param result The accumulated result
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\param inputBuffer The buffer of data to be accumulated
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\param num_points The number of values in inputBuffer to be accumulated
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*/
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static inline void volk_gnsssdr_64f_accumulator_64f_u_sse3(double* result,const double* inputBuffer, unsigned int num_points){
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double returnValue = 0;
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const unsigned int sse_iters = num_points / 2;
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const double* aPtr = inputBuffer;
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__VOLK_ATTR_ALIGNED(16) double tempBuffer[2];
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__m128d accumulator = _mm_setzero_pd();
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__m128d aVal = _mm_setzero_pd();
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for(unsigned int number = 0; number < sse_iters; number++)
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{
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aVal = _mm_loadu_pd(aPtr);
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accumulator = _mm_add_pd(accumulator, aVal);
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aPtr += 2;
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}
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_mm_storeu_pd((double*)tempBuffer,accumulator);
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for(unsigned int i = 0; i<2; ++i){
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returnValue += tempBuffer[i];
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}
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for(unsigned int i = 0; i<(num_points % 2); ++i){
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returnValue += (*aPtr++);
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}
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*result = returnValue;
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}
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#endif /* LV_HAVE_SSE3 */
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#ifdef LV_HAVE_GENERIC
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/*!
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\brief Accumulates the values in the input buffer
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\param result The accumulated result
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\param inputBuffer The buffer of data to be accumulated
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\param num_points The number of values in inputBuffer to be accumulated
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*/
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static inline void volk_gnsssdr_64f_accumulator_64f_generic(double* result,const double* inputBuffer, unsigned int num_points){
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const double* aPtr = inputBuffer;
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double returnValue = 0;
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for(unsigned int number = 0;number < num_points; number++){
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returnValue += (*aPtr++);
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}
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*result = returnValue;
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}
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#endif /* LV_HAVE_GENERIC */
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#endif /* INCLUDED_volk_gnsssdr_64f_accumulator_64f_u_H */
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#ifndef INCLUDED_volk_gnsssdr_64f_accumulator_64f_a_H
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#define INCLUDED_volk_gnsssdr_64f_accumulator_64f_a_H
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#include <volk_gnsssdr/volk_gnsssdr_common.h>
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#include <inttypes.h>
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#include <stdio.h>
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#ifdef LV_HAVE_AVX
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#include <immintrin.h>
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/*!
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\brief Accumulates the values in the input buffer
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\param result The accumulated result
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\param inputBuffer The buffer of data to be accumulated
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\param num_points The number of values in inputBuffer to be accumulated
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*/
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static inline void volk_gnsssdr_64f_accumulator_64f_a_avx(double* result,const double* inputBuffer, unsigned int num_points){
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double returnValue = 0;
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const unsigned int sse_iters = num_points / 4;
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const double* aPtr = inputBuffer;
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__VOLK_ATTR_ALIGNED(32) double tempBuffer[4];
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__m256d accumulator = _mm256_setzero_pd();
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__m256d aVal = _mm256_setzero_pd();
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for(unsigned int number = 0; number < sse_iters; number++)
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{
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aVal = _mm256_load_pd(aPtr);
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accumulator = _mm256_add_pd(accumulator, aVal);
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aPtr += 4;
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}
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_mm256_store_pd((double*)tempBuffer,accumulator);
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for(unsigned int i = 0; i<4; ++i){
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returnValue += tempBuffer[i];
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}
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for(unsigned int i = 0; i<(num_points % 4); ++i){
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returnValue += (*aPtr++);
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}
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*result = returnValue;
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}
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#endif /* LV_HAVE_AVX */
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#ifdef LV_HAVE_SSE3
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#include <pmmintrin.h>
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/*!
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\brief Accumulates the values in the input buffer
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\param result The accumulated result
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\param inputBuffer The buffer of data to be accumulated
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\param num_points The number of values in inputBuffer to be accumulated
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*/
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static inline void volk_gnsssdr_64f_accumulator_64f_a_sse3(double* result,const double* inputBuffer, unsigned int num_points){
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double returnValue = 0;
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const unsigned int sse_iters = num_points / 2;
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const double* aPtr = inputBuffer;
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__VOLK_ATTR_ALIGNED(16) double tempBuffer[2];
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__m128d accumulator = _mm_setzero_pd();
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__m128d aVal = _mm_setzero_pd();
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for(unsigned int number = 0; number < sse_iters; number++)
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{
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aVal = _mm_load_pd(aPtr);
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accumulator = _mm_add_pd(accumulator, aVal);
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aPtr += 2;
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}
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_mm_store_pd((double*)tempBuffer,accumulator);
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for(unsigned int i = 0; i<2; ++i){
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returnValue += tempBuffer[i];
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}
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for(unsigned int i = 0; i<(num_points % 2); ++i){
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returnValue += (*aPtr++);
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}
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*result = returnValue;
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}
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#endif /* LV_HAVE_SSE3 */
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#ifdef LV_HAVE_GENERIC
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/*!
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\brief Accumulates the values in the input buffer
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\param result The accumulated result
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\param inputBuffer The buffer of data to be accumulated
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\param num_points The number of values in inputBuffer to be accumulated
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*/
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static inline void volk_gnsssdr_64f_accumulator_64f_a_generic(double* result,const double* inputBuffer, unsigned int num_points){
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const double* aPtr = inputBuffer;
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double returnValue = 0;
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for(unsigned int number = 0;number < num_points; number++){
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returnValue += (*aPtr++);
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}
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*result = returnValue;
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}
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#endif /* LV_HAVE_GENERIC */
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#endif /* INCLUDED_volk_gnsssdr_64f_accumulator_64f_a_H */
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