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/github/workspace/src/MatrixFunctionsStride/mat_mult_trans_stride/kernels/plp_mat_mult_trans_stride_i8p_xpulpv2.c

Functions

Name
void plp_mat_mult_trans_stride_i8p_xpulpv2(void * args)
Parallel strided matrix multiplication of 8-bit integer matrices kernel for XPULPV2 extension.

Defines

Name
BASIC_VERSION

Functions Documentation

function plp_mat_mult_trans_stride_i8p_xpulpv2

void plp_mat_mult_trans_stride_i8p_xpulpv2(
    void * args
)

Parallel strided matrix multiplication of 8-bit integer matrices kernel for XPULPV2 extension.

Parameters:

Return: none

Par: Exploiting SIMD instructions

The 8 bit values are packed four each into 32 bit vectors and then the four dot products are performed on 32 bit vectors, with 32 bit accumulator.

Parallel strided matrix transposed matrix multiplication of a 8-bit integer matrices for XPULPV2 extension.

Macros Documentation

define BASIC_VERSION

#define BASIC_VERSION

Source code

/* =====================================================================
 * Project:      PULP DSP Library
 * Title:        plp_mat_mult_trans_stride_i8p_xpulpv2.c
 * Description:  parallel 8-bit integer strided matrix multiplication for XPULPV2
 *
 * $Date:        14. July 2020
 * $Revision:    V0
 *
 * Target Processor: PULP cores
 * ===================================================================== */
/*
 * Copyright (C) 2020 ETH Zurich and University of Bologna.
 *
 * Author: Tibor Schneider, ETH Zurich
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the License); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * www.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 */

#include "plp_math.h"

void plp_mat_mult_trans_stride_i8p_xpulpv2(void *args) {

    int core_id = hal_core_id();

    plp_mat_mult_stride_instance_i8 *a = (plp_mat_mult_stride_instance_i8 *)args;

    const int8_t *__restrict__ pSrcA = a->pSrcA;
    const int8_t *__restrict__ pSrcB = a->pSrcB;
    uint32_t M = a->M;
    uint32_t N = a->N;
    uint32_t O = a->O;
    uint32_t strideA = a->strideA;
    uint32_t strideB = a->strideB;
    uint32_t strideC = a->strideC;
    uint32_t nPE = a->nPE;
    int32_t *__restrict__ pDstC = a->pDstC;

#define BASIC_VERSION // if used don't forget to also use the undefine at end of file
#ifdef BASIC_VERSION

    uint32_t m, n, o;

    for (m = core_id; m < M; m += nPE) {
        for (o = 0; o < O; o++) {
            int32_t sum = 0;
            for (n = 0; n < N; n++) {
                int32_t valA = (int32_t)pSrcA[m * strideA + n];
                int32_t valB = (int32_t)pSrcB[o * strideB + n];
                sum += valA * valB;
            }
            pDstC[m * strideC + o] = sum;
        }
    }

#else

    // TODO: Hackathon

#endif
#undef BASIC_VERSION
}

// undefine BASIC_VERSION

Updated on 2023-03-01 at 16:16:33 +0000