Skip to content

/github/workspace/src/MatrixFunctions/mat_fill_I/kernels/plp_mat_fill_I_q8p_xpulpv2.c

Functions

Name
void plp_mat_fill_I_q8p_xpulpv2(void * args)
Create a 8-bit fix-point identity matrix in parallel on XpulpV2.

Defines

Name
BASIC_VERSION

Functions Documentation

function plp_mat_fill_I_q8p_xpulpv2

void plp_mat_fill_I_q8p_xpulpv2(
    void * args
)

Create a 8-bit fix-point identity matrix in parallel on XpulpV2.

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.

Macros Documentation

define BASIC_VERSION

#define BASIC_VERSION

Source code

/* =====================================================================
 * Project:      PULP DSP Library
 * Title:        plp_mat_fill_I_q8p_xpulpv2.c
 * Description:  parallel 8-bit fix-point identity matrix creation for XPULPV2
 *
 * $Date:        16. July 2020
 * $Revision:    V0
 *
 * Target Processor: PULP cores
 * ===================================================================== */
/*
 * Copyright (C) 2020 ETH Zurich and Ubiversity of Bologna. All rights reserved.
 *
 * 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_fill_I_q8p_xpulpv2(void *args) {

    int core_id = hal_core_id();

    plp_mat_fill_I_instance_q8 *a = (plp_mat_fill_I_instance_q8 *)args;

    uint32_t N = a->N;
    int32_t fracBits = a->fracBits;
    uint32_t nPE = a->nPE;
    int8_t *__restrict__ pDst = a->pDst;

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

    for (int i = core_id; i < N; i += nPE) {
        for (int j = 0; j < N; j++) {
            pDst[i * N + j] = (int8_t)(i == j) << fracBits;
        }
    }

#else

    // TODO: Hackathon

#endif
#undef BASIC_VERSION
}

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