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AVX512 modifications for LDPC encoding: interleaving, ZC384 BG1, output formatting for encoder, segmentation (memcpy)

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This commit is contained in:
Raymond Knopp
2025-05-13 14:08:33 +00:00
committed by Romain Beurdouche
parent c07bfe6db5
commit 8964fdb6a2
8 changed files with 523 additions and 157 deletions
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openair1/PHY/CODING/nrLDPC_encoder/ldpc_encode_parity_check.c
+5 -2
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@@ -37,7 +37,11 @@
#include "common/utils/LOG/log.h"
#ifdef __AVX512F__
#include "ldpc384_simd512_byte.c"
#else
#include "ldpc384_byte.c"
#endif
#include "ldpc384_byte_128.c"
#include "ldpc352_byte.c"
#include "ldpc352_byte_128.c"
@@ -87,7 +91,7 @@
static void encode_parity_check_part_optim(uint8_t *cc, uint8_t *d, short BG,short Zc,short Kb, int simd_size, int ncols)
{
unsigned char c[2 * 22 * Zc * simd_size] __attribute__((aligned(32))); //double size matrix of c
unsigned char c[2 * 22 * Zc * simd_size] __attribute__((aligned(64))); //double size matrix of c
for (int i1 = 0; i1 < ncols; i1++) {
memcpy(&c[2 * i1 * Zc], &cc[i1 * Zc], Zc * sizeof(unsigned char));
memcpy(&c[(2 * i1 + 1) * Zc], &cc[i1 * Zc], Zc * sizeof(unsigned char));
@@ -95,7 +99,6 @@ static void encode_parity_check_part_optim(uint8_t *cc, uint8_t *d, short BG,sho
for (int i1 = 1; i1 < simd_size; i1++) {
memcpy(&c[(2 * ncols * Zc * i1)], &c[i1], (2 * ncols * Zc * sizeof(unsigned char)) - i1);
}
if (BG == 1) {
switch (Zc) {
case 176: