codelet_zlascal.c

/**
 *
 * @file starpu/codelet_zlascal.c
 *
 * @copyright 2009-2014 The University of Tennessee and The University of
 *                      Tennessee Research Foundation. All rights reserved.
 * @copyright 2012-2020 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria,
 *                      Univ. Bordeaux. All rights reserved.
 *
 ***
 *
 * @brief Chameleon zlascal StarPU codelet
 *
 * @version 1.0.0
 * @author Dalal Sukkari
 * @author Lucas Barros de Assis
 * @date 2020-03-03
 * @precisions normal z -> c d s
 *
 */
#include "chameleon_starpu.h"
#include "runtime_codelet_z.h"

#if !defined(CHAMELEON_SIMULATION)
static void cl_zlascal_cpu_func(void *descr[], void *cl_arg)
{
    cham_uplo_t uplo;
    int M;
    int N;
    CHAMELEON_Complex64_t alpha;
    CHAM_tile_t *tileA;

    tileA = cti_interface_get(descr[0]);

    starpu_codelet_unpack_args(cl_arg, &uplo, &M, &N, &alpha);
    TCORE_zlascal(uplo, M, N, alpha, tileA);
    return;
}
#endif /* !defined(CHAMELEON_SIMULATION) */

/*
 * Codelet definition
 */
CODELETS_CPU(zlascal, cl_zlascal_cpu_func)

void INSERT_TASK_zlascal( const RUNTIME_option_t *options,
                          cham_uplo_t uplo,
                          int m, int n, int nb,
                          CHAMELEON_Complex64_t alpha,
                          const CHAM_desc_t *A, int Am, int An)
{
    if ( alpha == 0. ) {
        return INSERT_TASK_zlaset( options, uplo, m, n,
                                   alpha, alpha, A, Am, An );
    }
    else if ( alpha == 1. ) {
        return;
    }

    (void)nb;
    struct starpu_codelet *codelet = &cl_zlascal;
    void (*callback)(void*) = options->profiling ? cl_zlascal_callback : NULL;
    starpu_option_request_t* schedopt = (starpu_option_request_t *)(options->request->schedopt);
    int workerid = (schedopt == NULL) ? -1 : schedopt->workerid;

    CHAMELEON_BEGIN_ACCESS_DECLARATION;
    CHAMELEON_ACCESS_RW(A, Am, An);
    CHAMELEON_END_ACCESS_DECLARATION;

    rt_starpu_insert_task(
        codelet,
        STARPU_VALUE,    &uplo,              sizeof(int),
        STARPU_VALUE,    &m,                  sizeof(int),
        STARPU_VALUE,    &n,                  sizeof(int),
        STARPU_VALUE,    &alpha,              sizeof(CHAMELEON_Complex64_t),
        STARPU_RW,        RTBLKADDR(A, CHAMELEON_Complex64_t, Am, An),
        STARPU_PRIORITY,  options->priority,
        STARPU_CALLBACK,  callback,
        STARPU_EXECUTE_ON_WORKER, workerid,
#if defined(CHAMELEON_CODELETS_HAVE_NAME)
        STARPU_NAME, "zlascal",
#endif
        0);
}