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feat(nrLDPC_encoder): remove _optim and _optim8seg

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It is pointless to keep updating ldpc_optim and ldpc_optim8seg.
So we remove them.
This commit is contained in:
Romain Beurdouche
2025-05-13 07:32:36 +00:00
parent 9b878d920d
commit d6ee29a193
5 changed files with 11 additions and 356 deletions
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doc/Doxyfile
-2
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@@ -2133,10 +2133,8 @@ INPUT = \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_encode_parity_check.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_encode_parity_check.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc176_byte.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc176_byte.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc352_byte.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc352_byte.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc128_byte_128.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc128_byte_128.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc224_byte.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc224_byte.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8seg.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_generate_coefficient.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_generate_coefficient.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc104_byte.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc_BG2_Zc104_byte.c \
@CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc320_byte_128.c \ @CMAKE_CURRENT_SOURCE_DIR@/../openair1/PHY/CODING/nrLDPC_encoder/ldpc320_byte_128.c \
openair1/PHY/CODING/CMakeLists.txt
+7 -21
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@@ -17,20 +17,6 @@ add_library(ldpc_orig MODULE
set_target_properties(ldpc_orig PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}) set_target_properties(ldpc_orig PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
target_link_libraries(ldpc_orig PRIVATE ldpc_segment ldpc_gen_HEADERS) target_link_libraries(ldpc_orig PRIVATE ldpc_segment ldpc_gen_HEADERS)
add_library(ldpc_optim MODULE
nrLDPC_decoder/nrLDPC_decoder.c
nrLDPC_encoder/ldpc_encoder_optim.c
)
set_target_properties(ldpc_optim PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
target_link_libraries(ldpc_optim PRIVATE ldpc_segment ldpc_gen_HEADERS)
add_library(ldpc_optim8seg MODULE
nrLDPC_decoder/nrLDPC_decoder.c
nrLDPC_encoder/ldpc_encoder_optim8seg.c
)
set_target_properties(ldpc_optim8seg PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
target_link_libraries(ldpc_optim8seg PRIVATE ldpc_segment ldpc_gen_HEADERS)
add_library(ldpc MODULE add_library(ldpc MODULE
nrLDPC_decoder/nrLDPC_decoder.c nrLDPC_decoder/nrLDPC_decoder.c
nrLDPC_encoder/ldpc_encoder_optim8segmulti.c nrLDPC_encoder/ldpc_encoder_optim8segmulti.c
@@ -38,13 +24,13 @@ add_library(ldpc MODULE
set_target_properties(ldpc PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}) set_target_properties(ldpc PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
target_link_libraries(ldpc PRIVATE ldpc_segment ldpc_gen_HEADERS) target_link_libraries(ldpc PRIVATE ldpc_segment ldpc_gen_HEADERS)
add_dependencies(ldpctest ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(ldpctest ldpc ldpc_orig)
add_dependencies(nr-softmodem ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(nr-softmodem ldpc ldpc_orig)
add_dependencies(nr-uesoftmodem ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(nr-uesoftmodem ldpc ldpc_orig)
add_dependencies(nr_ulsim ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(nr_ulsim ldpc ldpc_orig)
add_dependencies(nr_ulschsim ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(nr_ulschsim ldpc ldpc_orig)
add_dependencies(nr_dlsim ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(nr_dlsim ldpc ldpc_orig)
add_dependencies(nr_dlschsim ldpc ldpc_orig ldpc_optim ldpc_optim8seg) add_dependencies(nr_dlschsim ldpc ldpc_orig)
add_custom_target(nrLDPC_decoder_kernels_CL add_custom_target(nrLDPC_decoder_kernels_CL
COMMAND gcc nrLDPC_decoder/nrLDPC_decoder_CL.c -dD -DNRLDPC_KERNEL_SOURCE -E -o ${CMAKE_CURRENT_BINARY_DIR}/nrLDPC_decoder_kernels_CL.clc COMMAND gcc nrLDPC_decoder/nrLDPC_decoder_CL.c -dD -DNRLDPC_KERNEL_SOURCE -E -o ${CMAKE_CURRENT_BINARY_DIR}/nrLDPC_decoder_kernels_CL.clc
openair1/PHY/CODING/DOC/LDPCImplementation.md
+4 -4
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@@ -120,16 +120,16 @@ By default the function `int load_nrLDPClib(void)` looks for `libldpc.so`, this
#### Examples of ldpc shared lib selection when running nr softmodem's: #### Examples of ldpc shared lib selection when running nr softmodem's:
loading `libldpc_optim8seg.so` instead of `libldpc.so`: loading `libldpc_orig.so` instead of `libldpc.so`:
``` ```
./nr-softmodem -O libconfig:gnb.band78.tm1.106PRB.usrpx300.conf:dbgl5 --loader.ldpc.shlibversion _optim8seg ./nr-softmodem -O libconfig:gnb.band78.tm1.106PRB.usrpx300.conf:dbgl5 --loader.ldpc.shlibversion _orig
....................... .......................
[CONFIG] loader.ldpc.shlibversion set to default value "" [CONFIG] loader.ldpc.shlibversion set to default value ""
[LIBCONFIG] loader.ldpc: 2/2 parameters successfully set, (1 to default value) [LIBCONFIG] loader.ldpc: 2/2 parameters successfully set, (1 to default value)
[CONFIG] shlibversion set to _optim8seg from command line [CONFIG] shlibversion set to _orig from command line
[CONFIG] loader.ldpc 1 options set from command line [CONFIG] loader.ldpc 1 options set from command line
[LOADER] library libldpc_optim8seg.so successfully loaded [LOADER] library libldpc_orig.so successfully loaded
........................ ........................
``` ```
openair1/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim.c
-128
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@@ -1,128 +0,0 @@
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file ldpc_encoder_optim.c
* \brief Defines the optimized LDPC encoder
* \author Florian Kaltenberger, Raymond Knopp, Kien le Trung (Eurecom)
* \email openair_tech@eurecom.fr
* \date 27-03-2018
* \version 1.0
* \note
* \warning
*/
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "assertions.h"
#include "common/utils/LOG/log.h"
#include "time_meas.h"
#include "openair1/PHY/CODING/nrLDPC_defs.h"
#include "openair1/PHY/CODING/nrLDPC_extern.h"
#include "ldpc_encode_parity_check.c"
#include "ldpc_generate_coefficient.c"
int LDPCencoder(uint8_t **test_input, uint8_t **channel_input, encoder_implemparams_t *impp)
{
int Zc = impp->Zc;
int Kb = impp->Kb;
int block_length = impp->K;
int BG = impp->BG;
int nrows=0,ncols=0;
int rate=3;
int no_punctured_columns,removed_bit;
int simd_size;
//determine number of bits in codeword
//if (block_length>3840)
if (BG==1)
{
//BG=1;
nrows=46; //parity check bits
ncols=22; //info bits
rate=3;
}
//else if (block_length<=3840)
else if (BG==2)
{
//BG=2;
nrows=42; //parity check bits
ncols=10; // info bits
rate=5;
}
#ifdef DEBUG_LDPC
LOG_D(PHY,"ldpc_encoder_optim_8seg: BG %d, Zc %d, Kb %d, block_length %d\n",BG,Zc,Kb,block_length);
LOG_D(PHY,"ldpc_encoder_optim_8seg: PDU %x %x %x %x\n",test_input[0][0],test_input[0][1],test_input[0][2],test_input[0][3]);
#endif
if ((Zc&31) > 0) simd_size = 16;
else simd_size = 32;
uint8_t c[22*Zc] __attribute__((aligned(32))); //padded input, unpacked, max size
uint8_t d[46*Zc] __attribute__((aligned(32))); //coded parity part output, unpacked, max size
// calculate number of punctured bits
no_punctured_columns=(int)((nrows-2)*Zc+block_length-block_length*rate)/Zc;
removed_bit = (nrows - no_punctured_columns - 2) * Zc + block_length - block_length * rate;
// printf("%d\n",no_punctured_columns);
// printf("%d\n",removed_bit);
// unpack input
memset(c, 0, sizeof(c));
memset(d, 0, sizeof(d));
if(impp->tinput != NULL) start_meas(impp->tinput);
for (int i=0; i<block_length; i++) {
c[i] = (test_input[0][i/8]&(128>>(i&7)))>>(7-(i&7));
//printf("c(%d,%d)=%d\n",j,i,temp);
}
if(impp->tinput != NULL) stop_meas(impp->tinput);
if ((BG==1 && Zc>=176) || (BG==2 && Zc>=72)) {
// extend matrix
if(impp->tprep != NULL) start_meas(impp->tprep);
if(impp->tprep != NULL) stop_meas(impp->tprep);
//parity check part
if(impp->tparity != NULL) start_meas(impp->tparity);
encode_parity_check_part_optim(c, d, BG, Zc, Kb,simd_size, ncols);
if(impp->tparity != NULL) stop_meas(impp->tparity);
}
else {
if (encode_parity_check_part_orig(c, d, BG, Zc, Kb, block_length)!=0) {
printf("Problem with encoder\n");
return(-1);
}
}
if(impp->toutput != NULL) start_meas(impp->toutput);
// information part and puncture columns
memcpy(&channel_input[0][0], &c[2*Zc], (block_length-2*Zc)*sizeof(unsigned char));
memcpy(&channel_input[0][block_length-2*Zc], &d[0], ((nrows-no_punctured_columns) * Zc-removed_bit)*sizeof(unsigned char));
if(impp->toutput != NULL) stop_meas(impp->toutput);
return 0;
}
openair1/PHY/CODING/nrLDPC_encoder/ldpc_encoder_optim8seg.c
-201
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@@ -1,201 +0,0 @@
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file ldpc_encoder_optim8seg.c
* \brief Defines the optimized LDPC encoder
* \author Florian Kaltenberger, Raymond Knopp, Kien le Trung (Eurecom)
* \email openair_tech@eurecom.fr
* \date 27-03-2018
* \version 1.0
* \note
* \warning
*/
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "assertions.h"
#include "common/utils/LOG/log.h"
#include "time_meas.h"
#include "openair1/PHY/CODING/nrLDPC_defs.h"
#include "openair1/PHY/CODING/nrLDPC_extern.h"
#include "ldpc_encode_parity_check.c"
#include "ldpc_generate_coefficient.c"
#include "PHY/sse_intrin.h"
int LDPCencoder(uint8_t **test_input, uint8_t **channel_input, encoder_implemparams_t *impp)
{
int Zc = impp->Zc;
int Kb = impp->Kb;
short block_length = impp->K;
short BG = impp->BG;
short nrows=0,ncols=0;
int i,i1,j,rate=3;
int no_punctured_columns,removed_bit;
char temp;
int simd_size;
simde__m256i shufmask = simde_mm256_set_epi64x(0x0303030303030303, 0x0202020202020202,0x0101010101010101, 0x0000000000000000);
simde__m256i andmask = simde_mm256_set1_epi64x(0x0102040810204080); // every 8 bits -> 8 bytes, pattern repeats.
simde__m256i zero256 = simde_mm256_setzero_si256();
simde__m256i masks[8];
register simde__m256i c256;
masks[0] = simde_mm256_set1_epi8(0x1);
masks[1] = simde_mm256_set1_epi8(0x2);
masks[2] = simde_mm256_set1_epi8(0x4);
masks[3] = simde_mm256_set1_epi8(0x8);
masks[4] = simde_mm256_set1_epi8(0x10);
masks[5] = simde_mm256_set1_epi8(0x20);
masks[6] = simde_mm256_set1_epi8(0x40);
masks[7] = simde_mm256_set1_epi8(0x80);
AssertFatal((impp->n_segments>0&&impp->n_segments<=8),"0 < n_segments %d <= 8\n",impp->n_segments);
//determine number of bits in codeword
//if (block_length>3840)
if (BG==1)
{
nrows=46; //parity check bits
ncols=22; //info bits
rate=3;
}
//else if (block_length<=3840)
else if (BG==2)
{
//BG=2;
nrows=42; //parity check bits
ncols=10; // info bits
rate=5;
}
#ifdef DEBUG_LDPC
LOG_D(PHY,"ldpc_encoder_optim_8seg: BG %d, Zc %d, Kb %d, block_length %d, segments %d\n",BG,Zc,Kb,block_length,n_segments);
LOG_D(PHY,"ldpc_encoder_optim_8seg: PDU (seg 0) %x %x %x %x\n",test_input[0][0],test_input[0][1],test_input[0][2],test_input[0][3]);
#endif
AssertFatal(Zc>0,"no valid Zc found for block length %d\n",block_length);
if ((Zc&31) > 0) simd_size = 16;
else simd_size = 32;
unsigned char c[22*Zc] __attribute__((aligned(32))); //padded input, unpacked, max size
unsigned char d[46*Zc] __attribute__((aligned(32))); //coded parity part output, unpacked, max size
// calculate number of punctured bits
no_punctured_columns=(int)((nrows-2)*Zc+block_length-block_length*rate)/Zc;
removed_bit=(nrows-no_punctured_columns-2) * Zc+block_length-(int)(block_length*rate);
// printf("%d\n",no_punctured_columns);
// printf("%d\n",removed_bit);
// unpack input
memset(c,0,sizeof(unsigned char) * ncols * Zc);
memset(d,0,sizeof(unsigned char) * nrows * Zc);
if(impp->tinput != NULL) start_meas(impp->tinput);
#if 0
for (i=0; i<block_length; i++) {
for (j=0; j<n_segments; j++) {
temp = (test_input[j][i/8]&(128>>(i&7)))>>(7-(i&7));
//printf("c(%d,%d)=%d\n",j,i,temp);
c[i] |= (temp << j);
}
}
#else
for (i=0; i<block_length>>5; i++) {
c256 = simde_mm256_and_si256(simde_mm256_cmpeq_epi8(simde_mm256_andnot_si256(simde_mm256_shuffle_epi8(simde_mm256_set1_epi32(((uint32_t*)test_input[0])[i]), shufmask),andmask),zero256),masks[0]);
for (j=1; j<impp->n_segments; j++) {
c256 = simde_mm256_or_si256(simde_mm256_and_si256(simde_mm256_cmpeq_epi8(simde_mm256_andnot_si256(simde_mm256_shuffle_epi8(simde_mm256_set1_epi32(((uint32_t*)test_input[j])[i]), shufmask),andmask),zero256),masks[j]),c256);
}
((simde__m256i *)c)[i] = c256;
}
for (i=(block_length>>5)<<5;i<block_length;i++) {
for (j=0; j<impp->n_segments; j++) {
temp = (test_input[j][i/8]&(128>>(i&7)))>>(7-(i&7));
//printf("c(%d,%d)=%d\n",j,i,temp);
c[i] |= (temp << j);
}
}
#endif
if(impp->tinput != NULL) stop_meas(impp->tinput);
if ((BG==1 && Zc>=176) || (BG==2 && Zc>=72)) {
// extend matrix
if(impp->tprep != NULL) start_meas(impp->tprep);
if(impp->tprep != NULL) stop_meas(impp->tprep);
//parity check part
if(impp->tparity != NULL) start_meas(impp->tparity);
encode_parity_check_part_optim(c, d, BG, Zc, Kb, simd_size, ncols);
if(impp->tparity != NULL) stop_meas(impp->tparity);
}
else {
if (encode_parity_check_part_orig(c, d, BG, Zc, Kb, block_length)!=0) {
printf("Problem with encoder\n");
return(-1);
}
}
if(impp->toutput != NULL) start_meas(impp->toutput);
// information part and puncture columns
/*
memcpy(&channel_input[0], &c[2*Zc], (block_length-2*Zc)*sizeof(unsigned char));
memcpy(&channel_input[block_length-2*Zc], &d[0], ((nrows-no_punctured_columns) * Zc-removed_bit)*sizeof(unsigned char));
*/
if ((((2*Zc)&31) == 0) && (((block_length-(2*Zc))&31) == 0)) {
//AssertFatal(((2*Zc)&31) == 0,"2*Zc needs to be a multiple of 32 for now\n");
//AssertFatal(((block_length-(2*Zc))&31) == 0,"block_length-(2*Zc) needs to be a multiple of 32 for now\n");
uint32_t l1 = (block_length-(2*Zc))>>5;
uint32_t l2 = ((nrows-no_punctured_columns) * Zc-removed_bit)>>5;
simde__m256i *c256p = (simde__m256i *)&c[2*Zc];
simde__m256i *d256p = (simde__m256i *)&d[0];
// if (((block_length-(2*Zc))&31)>0) l1++;
for (i=0;i<l1;i++)
for (j=0;j<impp->n_segments;j++) ((simde__m256i *)channel_input[j])[i] = simde_mm256_and_si256(simde_mm256_srai_epi16(c256p[i],j),masks[0]);
// if ((((nrows-no_punctured_columns) * Zc-removed_bit)&31)>0) l2++;
for (i1=0;i1<l2;i1++,i++)
for (j=0;j<impp->n_segments;j++) ((simde__m256i *)channel_input[j])[i] = simde_mm256_and_si256(simde_mm256_srai_epi16(d256p[i1],j),masks[0]);
}
else {
#ifdef DEBUG_LDPC
LOG_W(PHY,"using non-optimized version\n");
#endif
// do non-SIMD version
for (i=0;i<(block_length-2*Zc);i++)
for (j=0; j<impp->n_segments; j++)
channel_input[j][i] = (c[2*Zc+i]>>j)&1;
for (i=0;i<((nrows-no_punctured_columns) * Zc-removed_bit);i++)
for (j=0; j<impp->n_segments; j++)
channel_input[j][block_length-2*Zc+i] = (d[i]>>j)&1;
}
if(impp->toutput != NULL) stop_meas(impp->toutput);
return 0;
}