Refactor LDPC API to make common API with various implementations
This commit is contained in:
Laurent THOMAS
committed by
Raymond Knopp
Raymond Knopp
parent
e945b260f8
commit
99ca87a1c1
@@ -38,44 +38,29 @@
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#include "defs.h"
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#include "assertions.h"
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#include "openair1/PHY/CODING/nrLDPC_defs.h"
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#include "openair1/PHY/CODING/nrLDPC_extern.h"
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#include "ldpc_generate_coefficient.c"
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int ldpc_encoder_orig(uint8_t *test_input,uint8_t *channel_input,int Zc,int Kb,short block_length, short BG,uint8_t gen_code)
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int LDPCencoder(unsigned char **inputArray, unsigned char **outputArray, encoder_implemparams_t *impp)
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{
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const unsigned char *input = inputArray[0];
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// channel input is the output of this function!
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unsigned char *output = outputArray[0];
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const int Zc = impp->Zc;
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const int Kb = impp->Kb;
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const short block_length = impp->K;
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const short BG = impp->BG;
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const uint8_t gen_code = impp->gen_code;
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uint8_t c[22*384]; //padded input, unpacked, max size
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uint8_t d[68*384]; //coded output, unpacked, max size
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uint8_t channel_temp,temp;
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short *Gen_shift_values, *no_shift_values, *pointer_shift_values;
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short nrows = 46;//parity check bits
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short ncols = 22;//info bits
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uint8_t d[68 * 384]; // coded output, unpacked, max size
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int i,i1,i2,i3,i4,i5,temp_prime,var;
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int no_punctured_columns,removed_bit,rate=3;
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int no_punctured_columns, removed_bit;
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int nind=0;
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int indlist[1000];
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int indlist2[1000];
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//determine number of bits in codeword
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//if (block_length>3840)
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if (BG==1)
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{
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nrows=46; //parity check bits
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ncols=22; //info bits
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rate=3;
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}
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//else if (block_length<=3840)
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else if (BG==2)
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{
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//BG=2;
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nrows=42; //parity check bits
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ncols=10; // info bits
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rate=5;
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}
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Gen_shift_values=choose_generator_matrix(BG,Zc);
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const short *Gen_shift_values = choose_generator_matrix(BG, Zc);
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if (Gen_shift_values==NULL) {
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printf("ldpc_encoder_orig: could not find generator matrix\n");
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return(-1);
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@@ -83,21 +68,14 @@ int ldpc_encoder_orig(uint8_t *test_input,uint8_t *channel_input,int Zc,int Kb,s
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//printf("ldpc_encoder_orig: BG %d, Zc %d, Kb %d\n",BG, Zc, Kb);
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AssertFatal(BG <= 2, "BG %d is not supported yet\n", BG);
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// load base graph of generator matrix
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if (BG==1)
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{
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no_shift_values=(short *) no_shift_values_BG1;
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pointer_shift_values=(short *) pointer_shift_values_BG1;
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}
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else if (BG==2)
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{
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no_shift_values=(short *) no_shift_values_BG2;
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pointer_shift_values=(short *) pointer_shift_values_BG2;
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}
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else {
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AssertFatal(0,"BG %d is not supported yet\n",BG);
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}
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const short nrows = BG == 1 ? 46 : 42;
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const short ncols = BG == 1 ? 22 : 10;
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const short rate = BG == 1 ? 3 : 5;
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const short *no_shift_values = BG == 1 ? no_shift_values_BG1 : no_shift_values_BG2;
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const short *pointer_shift_values = BG == 1 ? pointer_shift_values_BG1 : pointer_shift_values_BG2;
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no_punctured_columns=(int)((nrows-2)*Zc+block_length-block_length*rate)/Zc;
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removed_bit=(nrows-no_punctured_columns-2) * Zc+block_length-(block_length*rate);
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//printf("%d\n",no_punctured_columns);
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@@ -108,9 +86,9 @@ int ldpc_encoder_orig(uint8_t *test_input,uint8_t *channel_input,int Zc,int Kb,s
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for (i=0; i<block_length; i++)
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{
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//c[i] = test_input[i/8]<<(i%8);
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//c[i]=c[i]>>7&1;
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c[i]=(test_input[i/8]&(128>>(i&7)))>>(7-(i&7));
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// c[i] = input[i/8]<<(i%8);
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// c[i]=c[i]>>7&1;
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c[i] = (input[i / 8] & (128 >> (i & 7))) >> (7 - (i & 7));
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}
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// parity check part
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@@ -188,10 +166,9 @@ int ldpc_encoder_orig(uint8_t *test_input,uint8_t *channel_input,int Zc,int Kb,s
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fprintf(fd2," c2=&csimd[i2];\n");
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fprintf(fd2," d2=&dsimd[i2];\n");
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for (i1=0; i1 < nrows; i1++)
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for (i1 = 0; i1 < nrows; i1++)
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{
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channel_temp=0;
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fprintf(fd,"\n//row: %d\n",i1);
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fprintf(fd2,"\n//row: %d\n",i1);
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fprintf(fd," d2[%d]=",(Zc*i1)>>shift);
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@@ -225,8 +202,7 @@ int ldpc_encoder_orig(uint8_t *test_input,uint8_t *channel_input,int Zc,int Kb,s
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fprintf(fd2,"c2[%d]",indlist2[i4]);
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for (i4=0;i4<nind-1;i4++) { fprintf(fd,")"); fprintf(fd2,")"); }
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fprintf(fd,";\n");
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fprintf(fd2,";\n");
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fprintf(fd2, ";\n");
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}
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fprintf(fd," }\n}\n");
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fprintf(fd2," }\n}\n");
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@@ -243,40 +219,33 @@ int ldpc_encoder_orig(uint8_t *test_input,uint8_t *channel_input,int Zc,int Kb,s
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//rotate matrix here
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for (i5=0; i5 < Kb; i5++)
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{
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temp = c[i5*Zc];
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memmove(&c[i5*Zc], &c[i5*Zc+1], (Zc-1)*sizeof(uint8_t));
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c[i5*Zc+Zc-1] = temp;
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const int temp = c[i5 * Zc];
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memmove(&c[i5 * Zc], &c[i5 * Zc + 1], Zc - 1);
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c[i5 * Zc + Zc - 1] = temp;
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}
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// calculate each row in base graph
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for (i1=0; i1 < nrows-no_punctured_columns; i1++)
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{
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channel_temp=0;
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unsigned char channel_temp = 0;
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for (i3=0; i3 < Kb; i3++)
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{
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temp_prime=i1 * ncols + i3;
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for (i3 = 0; i3 < Kb; i3++) {
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temp_prime = i1 * ncols + i3;
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for (i4=0; i4 < no_shift_values[temp_prime]; i4++)
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{
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channel_temp = channel_temp ^ c[ i3*Zc + Gen_shift_values[ pointer_shift_values[temp_prime]+i4 ] ];
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for (i4 = 0; i4 < no_shift_values[temp_prime]; i4++) {
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channel_temp = channel_temp ^ c[i3 * Zc + Gen_shift_values[pointer_shift_values[temp_prime] + i4]];
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}
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}
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d[i2+i1*Zc]=channel_temp;
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//channel_input[t+i1*Zc]=channel_temp;
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// output[t+i1*Zc]=channel_temp;
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}
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}
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}
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// information part and puncture columns
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memcpy(&channel_input[0], &c[2*Zc], (block_length-2*Zc)*sizeof(uint8_t));
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memcpy(&channel_input[block_length-2*Zc], &d[0], ((nrows-no_punctured_columns) * Zc-removed_bit)*sizeof(uint8_t));
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//memcpy(channel_input,c,Kb*Zc*sizeof(uint8_t));
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return 0;
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}
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int nrLDPC_encod(uint8_t **test_input,uint8_t **channel_input,int Zc,int Kb,short block_length, short BG, encoder_implemparams_t *impp) {
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return ldpc_encoder_orig(test_input[0],channel_input[0],Zc,Kb,block_length,BG,impp->gen_code);
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memcpy(&output[0], &c[2 * Zc], block_length - 2 * Zc);
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memcpy(&output[block_length - 2 * Zc], &d[0], (nrows - no_punctured_columns) * Zc - removed_bit);
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// memcpy(output,c,Kb*Zc*sizeof(unsigned char));
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return block_length - 2 * Zc + (nrows - no_punctured_columns) * Zc - removed_bit;
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}
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@@ -1,656 +0,0 @@
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/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* 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.openairinterface.org/?page_id=698
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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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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*!\file ldpc_encoder2.c
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* \brief Defines the optimized LDPC encoder
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* \author Florian Kaltenberger, Raymond Knopp, Kien le Trung (Eurecom)
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* \email openair_tech@eurecom.fr
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* \date 27-03-2018
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* \version 1.0
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* \note
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* \warning
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*/
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#include <stdlib.h>
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#include <math.h>
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#include <stdio.h>
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#include <string.h>
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#include <types.h>
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#include "assertions.h"
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#include "common/utils/LOG/log.h"
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#include "time_meas.h"
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#include "defs.h"
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#include "PHY/sse_intrin.h"
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#include "ldpc384_byte.c"
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#include "ldpc352_byte.c"
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#include "ldpc320_byte.c"
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#include "ldpc288_byte.c"
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#include "ldpc256_byte.c"
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#include "ldpc240_byte.c"
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#include "ldpc224_byte.c"
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#include "ldpc208_byte.c"
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#include "ldpc192_byte.c"
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#include "ldpc176_byte.c"
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#include "ldpc384_byte_128.c"
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#include "ldpc352_byte_128.c"
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#include "ldpc320_byte_128.c"
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#include "ldpc288_byte_128.c"
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#include "ldpc256_byte_128.c"
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#include "ldpc224_byte_128.c"
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#include "ldpc192_byte_128.c"
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#include "ldpc_BG2_Zc384_byte.c"
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#include "ldpc_BG2_Zc352_byte.c"
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#include "ldpc_BG2_Zc320_byte.c"
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#include "ldpc_BG2_Zc288_byte.c"
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#include "ldpc_BG2_Zc256_byte.c"
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#include "ldpc_BG2_Zc240_byte.c"
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#include "ldpc_BG2_Zc224_byte.c"
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#include "ldpc_BG2_Zc208_byte.c"
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#include "ldpc_BG2_Zc192_byte.c"
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#include "ldpc_BG2_Zc176_byte.c"
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#include "ldpc_BG2_Zc160_byte.c"
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#include "ldpc_BG2_Zc144_byte.c"
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#include "ldpc_BG2_Zc128_byte.c"
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#include "ldpc_BG2_Zc120_byte.c"
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#include "ldpc_BG2_Zc112_byte.c"
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#include "ldpc_BG2_Zc104_byte.c"
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#include "ldpc_BG2_Zc96_byte.c"
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#include "ldpc_BG2_Zc88_byte.c"
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#include "ldpc_BG2_Zc80_byte.c"
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#include "ldpc_BG2_Zc72_byte.c"
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void encode_parity_check_part_optim(uint8_t *c,uint8_t *d, short BG,short Zc,short Kb)
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{
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if (BG==1)
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{
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switch (Zc)
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{
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case 2: break;
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case 3: break;
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case 4: break;
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case 5: break;
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case 6: break;
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case 7: break;
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case 8: break;
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case 9: break;
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case 10: break;
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case 11: break;
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case 12: break;
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case 13: break;
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case 14: break;
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case 15: break;
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case 16: break;
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case 18: break;
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case 20: break;
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case 22: break;
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case 24: break;
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case 26: break;
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case 28: break;
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case 30: break;
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case 32: break;
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case 36: break;
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case 40: break;
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case 44: break;
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case 48: break;
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case 52: break;
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case 56: break;
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case 60: break;
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case 64: break;
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case 72: break;
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case 80: break;
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case 88: break;
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case 96: break;
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case 104: break;
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case 112: break;
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case 120: break;
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case 128: break;
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case 144: break;
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case 160: break;
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case 176: ldpc176_byte(c,d); break;
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case 192: ldpc192_byte(c,d); break;
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case 208: ldpc208_byte(c,d); break;
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case 224: ldpc224_byte(c,d); break;
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case 240: ldpc240_byte(c,d); break;
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case 256: ldpc256_byte(c,d); break;
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case 288: ldpc288_byte(c,d); break;
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case 320: ldpc320_byte(c,d); break;
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case 352: ldpc352_byte(c,d); break;
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case 384: ldpc384_byte(c,d); break;
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default: AssertFatal(0,"BG %d Zc %d is not supported yet\n",BG,Zc); break;
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}
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}
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else if (BG==2) {
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switch (Zc)
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{
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case 2: break;
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case 3: break;
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case 4: break;
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case 5: break;
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case 6: break;
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case 7: break;
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case 8: break;
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case 9: break;
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case 10: break;
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case 11: break;
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case 12: break;
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case 13: break;
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case 14: break;
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case 15: break;
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case 16: break;
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case 18: break;
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case 20: break;
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case 22: break;
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case 24: break;
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case 26: break;
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case 28: break;
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case 30: break;
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case 32: break;
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case 36: break;
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case 40: break;
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case 44: break;
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case 48: break;
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case 52: break;
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case 56: break;
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case 60: break;
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case 64: break;
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case 72: ldpc_BG2_Zc72_byte(c,d); break;
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case 80: ldpc_BG2_Zc80_byte(c,d); break;
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case 88: ldpc_BG2_Zc88_byte(c,d); break;
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case 96: ldpc_BG2_Zc96_byte(c,d); break;
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case 104: ldpc_BG2_Zc104_byte(c,d); break;
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case 112: ldpc_BG2_Zc112_byte(c,d); break;
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case 120: ldpc_BG2_Zc120_byte(c,d); break;
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case 128: ldpc_BG2_Zc128_byte(c,d); break;
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case 144: ldpc_BG2_Zc144_byte(c,d); break;
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case 160: ldpc_BG2_Zc160_byte(c,d); break;
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case 176: ldpc_BG2_Zc176_byte(c,d); break;
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case 192: ldpc_BG2_Zc192_byte(c,d); break;
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case 208: ldpc_BG2_Zc208_byte(c,d); break;
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case 224: ldpc_BG2_Zc224_byte(c,d); break;
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case 240: ldpc_BG2_Zc240_byte(c,d); break;
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case 256: ldpc_BG2_Zc256_byte(c,d); break;
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case 288: ldpc_BG2_Zc288_byte(c,d); break;
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case 320: ldpc_BG2_Zc320_byte(c,d); break;
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case 352: ldpc_BG2_Zc352_byte(c,d); break;
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case 384: ldpc_BG2_Zc384_byte(c,d); break;
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default: AssertFatal(0,"BG %d Zc %d is not supported yet\n",BG,Zc); break;
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}
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}
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else {
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AssertFatal(0,"BG %d is not supported yet\n",BG);
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}
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}
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int ldpc_encoder_optim(unsigned char *test_input,unsigned char *channel_input,int Zc,int Kb,short block_length,short BG,time_stats_t *tinput,time_stats_t *tprep,time_stats_t *tparity,time_stats_t *toutput)
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{
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short nrows=0,ncols=0;
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int i,i1,rate=3;
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int no_punctured_columns,removed_bit;
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int simd_size;
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//determine number of bits in codeword
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//if (block_length>3840)
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if (BG==1)
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{
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//BG=1;
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nrows=46; //parity check bits
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ncols=22; //info bits
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rate=3;
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}
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//else if (block_length<=3840)
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else if (BG==2)
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{
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//BG=2;
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nrows=42; //parity check bits
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ncols=10; // info bits
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rate=5;
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}
|
||||
|
||||
|
||||
#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],test_input[1],test_input[2],test_input[3]);
|
||||
#endif
|
||||
|
||||
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
|
||||
|
||||
unsigned char c_extension[2*22*Zc*simd_size] __attribute__((aligned(32))); //double size matrix of c
|
||||
|
||||
// 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(tinput != NULL) start_meas(tinput);
|
||||
for (i=0; i<block_length; i++) {
|
||||
c[i] = (test_input[i/8]&(128>>(i&7)))>>(7-(i&7));
|
||||
//printf("c(%d,%d)=%d\n",j,i,temp);
|
||||
}
|
||||
|
||||
if(tinput != NULL) stop_meas(tinput);
|
||||
|
||||
if ((BG==1 && Zc>176) || (BG==2 && Zc>64)) {
|
||||
// extend matrix
|
||||
if(tprep != NULL) start_meas(tprep);
|
||||
for (i1=0; i1 < ncols; i1++)
|
||||
{
|
||||
memcpy(&c_extension[2*i1*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
|
||||
memcpy(&c_extension[(2*i1+1)*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
|
||||
}
|
||||
for (i1=1;i1<simd_size;i1++) {
|
||||
memcpy(&c_extension[(2*ncols*Zc*i1)], &c_extension[i1], (2*ncols*Zc*sizeof(unsigned char))-i1);
|
||||
// memset(&c_extension[(2*ncols*Zc*i1)],0,i1);
|
||||
/*
|
||||
printf("shift %d: ",i1);
|
||||
for (int j=0;j<64;j++) printf("%d ",c_extension[(2*ncols*Zc*i1)+j]);
|
||||
printf("\n");
|
||||
*/
|
||||
}
|
||||
if(tprep != NULL) stop_meas(tprep);
|
||||
//parity check part
|
||||
if(tparity != NULL) start_meas(tparity);
|
||||
encode_parity_check_part_optim(c_extension, d, BG, Zc, Kb);
|
||||
if(tparity != NULL) stop_meas(tparity);
|
||||
}
|
||||
else {
|
||||
if (encode_parity_check_part_orig(c, d, BG, Zc, Kb, block_length)!=0) {
|
||||
printf("Problem with encoder\n");
|
||||
return(-1);
|
||||
}
|
||||
}
|
||||
if(toutput != NULL) start_meas(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(toutput != NULL) stop_meas(toutput);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ldpc_encoder_optim_8seg(unsigned char **test_input,unsigned char **channel_input,int Zc,int Kb,short block_length,short BG,int n_segments,time_stats_t *tinput,time_stats_t *tprep,time_stats_t *tparity,time_stats_t *toutput)
|
||||
{
|
||||
|
||||
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(n_segments>0&&n_segments<=8,"0 < n_segments %d <= 8\n",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
|
||||
|
||||
unsigned char c_extension[2*22*Zc*simd_size] __attribute__((aligned(32))); //double size matrix of c
|
||||
|
||||
// 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(tinput != NULL) start_meas(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<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<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(tinput != NULL) stop_meas(tinput);
|
||||
|
||||
if ((BG==1 && Zc>176) || (BG==2 && Zc>64)) {
|
||||
// extend matrix
|
||||
if(tprep != NULL) start_meas(tprep);
|
||||
for (i1=0; i1 < ncols; i1++)
|
||||
{
|
||||
memcpy(&c_extension[2*i1*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
|
||||
memcpy(&c_extension[(2*i1+1)*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
|
||||
}
|
||||
for (i1=1;i1<simd_size;i1++) {
|
||||
memcpy(&c_extension[(2*ncols*Zc*i1)], &c_extension[i1], (2*ncols*Zc*sizeof(unsigned char))-i1);
|
||||
// memset(&c_extension[(2*ncols*Zc*i1)],0,i1);
|
||||
/*
|
||||
printf("shift %d: ",i1);
|
||||
for (int j=0;j<64;j++) printf("%d ",c_extension[(2*ncols*Zc*i1)+j]);
|
||||
printf("\n");
|
||||
*/
|
||||
}
|
||||
if(tprep != NULL) stop_meas(tprep);
|
||||
//parity check part
|
||||
if(tparity != NULL) start_meas(tparity);
|
||||
encode_parity_check_part_optim(c_extension, d, BG, Zc, Kb);
|
||||
if(tparity != NULL) stop_meas(tparity);
|
||||
}
|
||||
else {
|
||||
if (encode_parity_check_part_orig(c, d, BG, Zc, Kb, block_length)!=0) {
|
||||
printf("Problem with encoder\n");
|
||||
return(-1);
|
||||
}
|
||||
}
|
||||
if(toutput != NULL) start_meas(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 < 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 < 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<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<n_segments; j++)
|
||||
channel_input[j][block_length-2*Zc+i] = (d[i]>>j)&1;
|
||||
}
|
||||
|
||||
if(toutput != NULL) stop_meas(toutput);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ldpc_encoder_optim_8seg_multi(unsigned char **test_input,unsigned char **channel_input,int Zc,int Kb,short block_length, short BG, int n_segments,unsigned int macro_num, time_stats_t *tinput,time_stats_t *tprep,time_stats_t *tparity,time_stats_t *toutput)
|
||||
{
|
||||
|
||||
short nrows=0,ncols=0;
|
||||
int i,i1,j,rate=3;
|
||||
int no_punctured_columns,removed_bit;
|
||||
//Table of possible lifting sizes
|
||||
char temp;
|
||||
int simd_size;
|
||||
unsigned int macro_segment, macro_segment_end;
|
||||
|
||||
|
||||
macro_segment = 8*macro_num;
|
||||
macro_segment_end = (n_segments > 8*(macro_num+1)) ? 8*(macro_num+1) : n_segments;
|
||||
//macro_segment_end = macro_segment + (n_segments > 8 ? 8 : n_segments);
|
||||
//printf("macro_segment: %d\n", macro_segment);
|
||||
//printf("macro_segment_end: %d\n", macro_segment_end );
|
||||
|
||||
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);
|
||||
|
||||
//determine number of bits in codeword
|
||||
if (BG==1)
|
||||
{
|
||||
nrows=46; //parity check bits
|
||||
ncols=22; //info bits
|
||||
rate=3;
|
||||
}
|
||||
else if (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
|
||||
|
||||
unsigned char c_extension[2*22*Zc*simd_size] __attribute__((aligned(32))); //double size matrix of c
|
||||
|
||||
// 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(tinput != NULL) start_meas(tinput);
|
||||
#if 0
|
||||
for (i=0; i<block_length; i++) {
|
||||
//for (j=0; j<n_segments; j++) {
|
||||
for (j=macro_segment; j < macro_segment_end; j++) {
|
||||
|
||||
temp = (test_input[j][i/8]&(1<<(i&7)))>>(i&7);
|
||||
//printf("c(%d,%d)=%d\n",j,i,temp);
|
||||
c[i] |= (temp << (j-macro_segment));
|
||||
}
|
||||
}
|
||||
#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[macro_segment])[i]), shufmask),andmask),zero256),masks[0]);
|
||||
//for (j=1; j<n_segments; j++) {
|
||||
for (j=macro_segment+1; j < macro_segment_end; 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-macro_segment]),c256);
|
||||
}
|
||||
((simde__m256i *)c)[i] = c256;
|
||||
}
|
||||
|
||||
for (i=(block_length>>5)<<5;i<block_length;i++) {
|
||||
//for (j=0; j<n_segments; j++) {
|
||||
for (j=macro_segment; j < macro_segment_end; 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-macro_segment));
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
if(tinput != NULL) stop_meas(tinput);
|
||||
|
||||
if ((BG==1 && Zc>176) || (BG==2 && Zc>64)) {
|
||||
// extend matrix
|
||||
if(tprep != NULL) start_meas(tprep);
|
||||
for (i1=0; i1 < ncols; i1++)
|
||||
{
|
||||
memcpy(&c_extension[2*i1*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
|
||||
memcpy(&c_extension[(2*i1+1)*Zc], &c[i1*Zc], Zc*sizeof(unsigned char));
|
||||
}
|
||||
for (i1=1;i1<simd_size;i1++) {
|
||||
memcpy(&c_extension[(2*ncols*Zc*i1)], &c_extension[i1], (2*ncols*Zc*sizeof(unsigned char))-i1);
|
||||
// memset(&c_extension[(2*ncols*Zc*i1)],0,i1);
|
||||
/*
|
||||
printf("shift %d: ",i1);
|
||||
for (int j=0;j<64;j++) printf("%d ",c_extension[(2*ncols*Zc*i1)+j]);
|
||||
printf("\n");
|
||||
*/
|
||||
}
|
||||
if(tprep != NULL) stop_meas(tprep);
|
||||
//parity check part
|
||||
if(tparity != NULL) start_meas(tparity);
|
||||
encode_parity_check_part_optim(c_extension, d, BG, Zc, Kb);
|
||||
if(tparity != NULL) stop_meas(tparity);
|
||||
}
|
||||
else {
|
||||
if (encode_parity_check_part_orig(c, d, BG, Zc, Kb, block_length)!=0) {
|
||||
printf("Problem with encoder\n");
|
||||
return(-1);
|
||||
}
|
||||
}
|
||||
if(toutput != NULL) start_meas(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<n_segments;j++) ((simde__m256i *)channel_input[j])[i] =
|
||||
// simde_mm256_and_si256(simde_mm256_srai_epi16(c256p[i],j),masks[0]);
|
||||
for (j = macro_segment; j < macro_segment_end; j++)
|
||||
((simde__m256i *)channel_input[j])[i] =
|
||||
simde_mm256_and_si256(simde_mm256_srai_epi16(c256p[i], j - macro_segment), masks[0]);
|
||||
|
||||
// if ((((nrows-no_punctured_columns) * Zc-removed_bit)&31)>0) l2++;
|
||||
|
||||
for (i1=0;i1<l2;i1++,i++)
|
||||
// for (j=0;j<n_segments;j++) ((simde__m256i *)channel_input[j])[i] =
|
||||
// simde_mm256_and_si256(simde_mm256_srai_epi16(d256p[i1],j),masks[0]);
|
||||
for (j = macro_segment; j < macro_segment_end; j++)
|
||||
((simde__m256i *)channel_input[j])[i] =
|
||||
simde_mm256_and_si256(simde_mm256_srai_epi16(d256p[i1], j - macro_segment), 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<n_segments; j++)
|
||||
for (j=macro_segment; j < macro_segment_end; j++)
|
||||
channel_input[j][i] = (c[2*Zc+i]>>(j-macro_segment))&1;
|
||||
for (i=0;i<((nrows-no_punctured_columns) * Zc-removed_bit);i++)
|
||||
//for (j=0; j<n_segments; j++)
|
||||
for (j=macro_segment; j < macro_segment_end; j++)
|
||||
channel_input[j][block_length-2*Zc+i] = (d[i]>>(j-macro_segment))&1;
|
||||
}
|
||||
|
||||
if(toutput != NULL) stop_meas(toutput);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -37,15 +37,17 @@
|
||||
#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 nrLDPC_encod(unsigned char **test_input,unsigned char **channel_input,int Zc,int Kb,short block_length, short BG, encoder_implemparams_t *impp)
|
||||
int LDPCencoder(uint8_t **test_input, uint8_t **channel_input, encoder_implemparams_t *impp)
|
||||
{
|
||||
|
||||
short nrows=0,ncols=0;
|
||||
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;
|
||||
|
||||
@@ -79,17 +81,17 @@ int nrLDPC_encod(unsigned char **test_input,unsigned char **channel_input,int Zc
|
||||
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
|
||||
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-(int)(block_length*rate);
|
||||
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(unsigned char) * ncols * Zc);
|
||||
memset(d,0,sizeof(unsigned char) * nrows * Zc);
|
||||
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++) {
|
||||
|
||||
@@ -37,13 +37,17 @@
|
||||
#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 nrLDPC_encod(unsigned char **test_input,unsigned char **channel_input,int Zc,int Kb,short block_length, short BG, encoder_implemparams_t *impp)
|
||||
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;
|
||||
|
||||
@@ -38,15 +38,19 @@
|
||||
#include "time_meas.h"
|
||||
#include "openair1/PHY/CODING/nrLDPC_defs.h"
|
||||
#include "PHY/sse_intrin.h"
|
||||
#include "openair1/PHY/CODING/nrLDPC_extern.h"
|
||||
|
||||
#include "ldpc_encode_parity_check.c"
|
||||
#include "ldpc_generate_coefficient.c"
|
||||
|
||||
|
||||
int nrLDPC_encod(unsigned char **input,unsigned char **output,int Zc,int Kb,short block_length, short BG, encoder_implemparams_t *impp)
|
||||
int LDPCencoder(uint8_t **input, uint8_t **output, encoder_implemparams_t *impp)
|
||||
{
|
||||
//set_log(PHY, 4);
|
||||
|
||||
|
||||
int Zc = impp->Zc;
|
||||
int Kb = impp->Kb;
|
||||
short block_length = impp->K;
|
||||
short BG = impp->BG;
|
||||
|
||||
int nrows=0,ncols=0;
|
||||
int rate=3;
|
||||
|
||||
Reference in New Issue
Block a user