/**
 *
 * @file parsec/codelet_zgelqt.c
 *
 * @copyright 2009-2015 The University of Tennessee and The University of
 *                      Tennessee Research Foundation. All rights reserved.
 * @copyright 2012-2021 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria,
 *                      Univ. Bordeaux. All rights reserved.
 *
 ***
 *
 * @brief Chameleon zgelqt PaRSEC codelet
 *
 * @version 1.0.0
 * @author Reazul Hoque
 * @author Mathieu Faverge
 * @date 2020-03-03
 * @precisions normal z -> c d s
 *
 */
#include "chameleon_parsec.h"
#include "chameleon/tasks_z.h"
#include "coreblas/coreblas_z.h"

static inline int
CORE_zgelqt_parsec( parsec_execution_stream_t *context,
                    parsec_task_t             *this_task )
{
    int m;
    int n;
    int ib;
    CHAMELEON_Complex64_t *A;
    int lda;
    CHAMELEON_Complex64_t *T;
    int ldt;
    CHAMELEON_Complex64_t *TAU;
    CHAMELEON_Complex64_t *WORK;

    parsec_dtd_unpack_args(
        this_task, &m, &n, &ib, &A, &lda, &T, &ldt, &TAU, &WORK );

    CORE_zlaset( ChamUpperLower, ib, m, 0., 0., T, ldt );
    CORE_zgelqt( m, n, ib, A, lda, T, ldt, TAU, WORK );

    (void)context;
    return PARSEC_HOOK_RETURN_DONE;
}

void INSERT_TASK_zgelqt(const RUNTIME_option_t *options,
                       int m, int n, int ib, int nb,
                       const CHAM_desc_t *A, int Am, int An,
                       const CHAM_desc_t *T, int Tm, int Tn)
{
    parsec_taskpool_t* PARSEC_dtd_taskpool = (parsec_taskpool_t *)(options->sequence->schedopt);
    CHAM_tile_t *tileA = A->get_blktile( A, Am, An );
    CHAM_tile_t *tileT = T->get_blktile( T, Tm, Tn );

    parsec_dtd_taskpool_insert_task(
        PARSEC_dtd_taskpool, CORE_zgelqt_parsec, options->priority, "gelqt",
        sizeof(int),                        &m,     VALUE,
        sizeof(int),                        &n,     VALUE,
        sizeof(int),                        &ib,    VALUE,
        PASSED_BY_REF,         RTBLKADDR( A, CHAMELEON_Complex64_t, Am, An ), chameleon_parsec_get_arena_index( A ) | INOUT | AFFINITY,
        sizeof(int), &(tileA->ld), VALUE,
        PASSED_BY_REF,         RTBLKADDR( T, CHAMELEON_Complex64_t, Tm, Tn ), chameleon_parsec_get_arena_index( T ) | OUTPUT,
        sizeof(int), &(tileT->ld), VALUE,
        sizeof(CHAMELEON_Complex64_t)*nb,       NULL,   SCRATCH,
        sizeof(CHAMELEON_Complex64_t)*ib*nb,    NULL,   SCRATCH,
        PARSEC_DTD_ARG_END );
}
