pzlange.c 13.8 KB
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/**
 *
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 * @copyright 2009-2014 The University of Tennessee and The University of
 *                      Tennessee Research Foundation. All rights reserved.
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 * @copyright 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria,
 *                      Univ. Bordeaux. All rights reserved.
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 *
 **/

/**
 *
 * @file pzlange.c
 *
 *  MORSE auxiliary routines
 *  MORSE is a software package provided by Inria Bordeaux - Sud-Ouest, LaBRI,
 *  University of Bordeaux, Bordeaux INP
 *
 * @version 2.6.0
 * @comment This file has been automatically generated
 *          from Plasma 2.6.0 for MORSE 1.0.0
 * @author Emmanuel Agullo
 * @author Mathieu Faverge
 * @author Florent Pruvost
 * @date 2014-07-21
 * @precisions normal z -> s d c
 *
 **/
//ALLOC_WS :  A->mb
//ALLOC_WS :  A->nb
//WS_ADD :  A->mb + A->nb
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#include "control/common.h"
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#define A(m, n) A, m, n
#define VECNORMS_STEP1(m, n) VECNORMS_STEP1, m, n
#define VECNORMS_STEP2(m, n) VECNORMS_STEP2, m, n
#define RESULT(m, n) RESULT, m, n

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/*****************************************************************************
 *
 **/
void morse_pzlange( MORSE_enum norm, MORSE_desc_t *A, double *result,
                    MORSE_sequence_t *sequence, MORSE_request_t *request )
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{
    MORSE_desc_t *VECNORMS_STEP1 = NULL;
    MORSE_desc_t *VECNORMS_STEP2 = NULL;
    MORSE_desc_t *RESULT         = NULL;
    MORSE_context_t *morse;
    MORSE_option_t options;

    int workm, workn;
    int tempkm, tempkn;
    int ldam;
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    int m, n;
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    morse = morse_context_self();
    if (sequence->status != MORSE_SUCCESS)
        return;
    RUNTIME_options_init(&options, morse, sequence, request);

    *result = 0.0;
    switch ( norm ) {
        /*
         *  MorseOneNorm
         */
    case MorseOneNorm:
        /* Init workspace handle for the call to zlange but unused */
        RUNTIME_options_ws_alloc( &options, 1, 0 );

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        workm = chameleon_max( A->mt, A->p );
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        workn = A->n;
        MORSE_Desc_Create(&(VECNORMS_STEP1), NULL, MorseRealDouble, 1, A->nb, A->nb,
                          workm, workn, 0, 0, workm, workn, A->p, A->q);

        MORSE_Desc_Create(&(VECNORMS_STEP2), NULL, MorseRealDouble, 1, A->nb, A->nb,
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                          1,     workn, 0, 0, 1,     workn, A->p, A->q);
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        MORSE_Desc_Create(&(RESULT), NULL, MorseRealDouble, 1, 1, 1,
                          1, 1, 0, 0, 1, 1, 1, 1);

        for(n = A->myrank % A->q; n < A->nt; n+=A->q) {
            tempkn = n == A->nt-1 ? A->n-n*A->nb : A->nb;

            /* Zeroes my intermediate vectors */
            for(m = (A->myrank / A->q); m < workm; m+=A->p) {
                MORSE_TASK_dlaset(
                    &options,
                    MorseUpperLower, 1, tempkn,
                    0., 0.,
                    VECNORMS_STEP1(m, n), 1);
            }

            /* compute sums of absolute values on columns of each tile */
            for(m = (A->myrank / A->q); m < A->mt; m+=A->p) {
                tempkm = m == A->mt-1 ? A->m-m*A->mb : A->mb;
                ldam = BLKLDD(A, m);
                MORSE_TASK_dzasum(
                    &options,
                    MorseColumnwise, MorseUpperLower, tempkm, tempkn,
                    A(m, n), ldam, VECNORMS_STEP1(m, n));
            }

            /* Zeroes the second intermediate vector */
            MORSE_TASK_dlaset(
                &options,
                MorseUpperLower, 1, tempkn,
                0., 0.,
                VECNORMS_STEP2(0, n), 1);

            /* Compute vector sums between tiles in columns */
            for(m = 0; m < A->mt; m++) {
                MORSE_TASK_dgeadd(
                    &options,
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                    MorseNoTrans, 1, tempkn, A->mb,
                    1.0, VECNORMS_STEP1(m, n), 1,
                    1.0, VECNORMS_STEP2(0, n), 1);
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            }

            /*
             * Compute max norm of each segment of the final vector in the
             * previous workspace
             */
            MORSE_TASK_dlange(
                &options,
                MorseMaxNorm, 1, tempkn, A->nb,
                VECNORMS_STEP2(0, n), 1,
                VECNORMS_STEP1(0, n));
        }

        /* Initialize RESULT array */
        MORSE_TASK_dlaset(
            &options,
            MorseUpperLower, 1, 1,
            0., 0.,
            RESULT(0,0), 1);

        /* Compute max norm between tiles in the row */
        if (A->myrank < A->q) {
            for(n = 0; n < A->nt; n++) {
                MORSE_TASK_dlange_max(
                    &options,
                    VECNORMS_STEP1(0, n),
                    RESULT(0,0));
            }
        }

        /* Scatter norm over processus */
        for(m = 0; m < A->p; m++) {
            for(n = 0; n < A->q; n++) {
                MORSE_TASK_dlacpy(
                    &options,
                    MorseUpperLower, 1, 1, 1,
                    RESULT(0,0), 1,
                    VECNORMS_STEP1(m, n), 1 );
            }
        }
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        MORSE_Desc_Flush( VECNORMS_STEP2, sequence );
        MORSE_Desc_Flush( VECNORMS_STEP1, sequence );
        MORSE_Desc_Flush( RESULT, sequence );
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        RUNTIME_sequence_wait(morse, sequence);
        MORSE_Desc_Destroy( &(VECNORMS_STEP2) );
        break;

        /*
         *  MorseInfNorm
         */
    case MorseInfNorm:
        /* Init workspace handle for the call to zlange */
        RUNTIME_options_ws_alloc( &options, A->mb, 0 );

        workm = A->m;
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        workn = chameleon_max( A->nt, A->q );
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        MORSE_Desc_Create(&(VECNORMS_STEP1), NULL, MorseRealDouble, A->mb, 1, A->mb,
                          workm, workn, 0, 0, workm, workn, A->p, A->q);

        MORSE_Desc_Create(&(VECNORMS_STEP2), NULL, MorseRealDouble, A->mb, 1, A->mb,
                          workm, 1, 0, 0, workm, 1, A->p, A->q);

        MORSE_Desc_Create(&(RESULT), NULL, MorseRealDouble, 1, 1, 1,
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                          A->p, A->q, 0, 0, A->p, A->q, A->p, A->q);
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        for(m = (A->myrank / A->q); m < A->mt; m+=A->p) {
            tempkm = m == A->mt-1 ? A->m-m*A->mb : A->mb;
            ldam = BLKLDD(A, m);

            /* Zeroes my intermediate vectors */
            for(n = A->myrank % A->q; n < workn; n+=A->q) {
                MORSE_TASK_dlaset(
                    &options,
                    MorseUpperLower, tempkm, 1,
                    0., 0.,
                    VECNORMS_STEP1(m, n), 1);
            }

            /* compute sums of absolute values on rows of each tile */
            for(n = A->myrank % A->q; n < A->nt; n+=A->q) {
                tempkn = n == A->nt-1 ? A->n-n*A->nb : A->nb;
                MORSE_TASK_dzasum(
                    &options,
                    MorseRowwise, MorseUpperLower, tempkm, tempkn,
                    A(m, n), ldam, VECNORMS_STEP1(m, n));
            }

            /* Zeroes the second intermediate vector */
            MORSE_TASK_dlaset(
                &options,
                MorseUpperLower, tempkm, 1,
                0., 0.,
                VECNORMS_STEP2(m, 0), 1);

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            /* compute vector sums between tiles in rows locally on each rank */
            for(n = A->myrank % A->q + A->q; n < A->nt; n+=A->q) {
                MORSE_TASK_dgeadd(
                    &options,
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                    MorseNoTrans, tempkm, 1, A->mb,
                    1.0, VECNORMS_STEP1(m, n), tempkm,
                    1.0, VECNORMS_STEP1(m, A->myrank % A->q), tempkm);
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            }

            /* compute vector sums between tiles in rows between ranks */
            for(n = 0; n < A->q; n++) {
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                MORSE_TASK_dgeadd(
                    &options,
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                    MorseNoTrans, tempkm, 1, A->mb,
                    1.0, VECNORMS_STEP1(m, n), tempkm,
                    1.0, VECNORMS_STEP2(m, 0), tempkm);
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            }

            /*
             * Compute max norm of each segment of the final vector in the
             * previous workspace
             */
            MORSE_TASK_dlange(
                &options,
                MorseMaxNorm, tempkm, 1, A->nb,
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                VECNORMS_STEP2(m, 0), tempkm,
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                VECNORMS_STEP1(m, 0));
        }

        /* Initialize RESULT array */
        MORSE_TASK_dlaset(
            &options,
            MorseUpperLower, 1, 1,
            0., 0.,
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            RESULT(A->myrank / A->q, A->myrank % A->q), 1);
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        /* compute max norm between tiles in the column locally on each rank */
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        if (A->myrank % A->q == 0) {
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            for(m = (A->myrank / A->q); m < A->mt; m+=A->p) {
                MORSE_TASK_dlange_max(
                    &options,
                    VECNORMS_STEP1(m, 0),
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                    RESULT(A->myrank / A->q, A->myrank % A->q));
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            }
        }

        /* compute max norm between tiles in the column between ranks */
        if (A->myrank % A->q == 0) {
            for(m = 0; m < A->p; m++) {
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                MORSE_TASK_dlange_max(
                    &options,
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                    RESULT(m,0),
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                    RESULT(0,0));
            }
        }

        /* Scatter norm over processus */
        for(m = 0; m < A->p; m++) {
            for(n = 0; n < A->q; n++) {
                MORSE_TASK_dlacpy(
                    &options,
                    MorseUpperLower, 1, 1, 1,
                    RESULT(0,0), 1,
                    VECNORMS_STEP1(m, n), 1 );
            }
        }
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        MORSE_Desc_Flush( VECNORMS_STEP2, sequence );
        MORSE_Desc_Flush( VECNORMS_STEP1, sequence );
        MORSE_Desc_Flush( RESULT, sequence );
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        RUNTIME_sequence_wait(morse, sequence);
        MORSE_Desc_Destroy( &(VECNORMS_STEP2) );
        break;

        /*
         *  MorseFrobeniusNorm
         */
    case MorseFrobeniusNorm:

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        workm = chameleon_max( A->mt, A->p );
        workn = chameleon_max( A->nt, A->q );
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        MORSE_Desc_Create(&(VECNORMS_STEP1), NULL, MorseRealDouble, 1, 2, 2,
                          workm, 2*workn, 0, 0, workm, 2*workn, A->p, A->q);
        MORSE_Desc_Create(&(RESULT), NULL, MorseRealDouble, 1, 2, 2,
                          1, 2, 0, 0, 1, 2, 1, 1);

        /* Compute local norm to each tile */
        for(m = 0; m < A->mt; m++) {
            tempkm = m == A->mt-1 ? A->m-m*A->mb : A->mb;
            ldam = BLKLDD(A, m);
            for(n = 0; n < A->nt; n++) {
                MORSE_TASK_dlaset(
                    &options,
                    MorseUpperLower, 1, 2,
                    1., 0.,
                    VECNORMS_STEP1(m,n), 1);
                tempkn = n == A->nt-1 ? A->n-n*A->nb : A->nb;
                MORSE_TASK_zgessq(
                    &options,
                    tempkm, tempkn,
                    A(m, n), ldam,
                    VECNORMS_STEP1(m, n));
            }
        }

        /* Initialize arrays */
        MORSE_TASK_dlaset(
            &options,
            MorseUpperLower, 1, 2,
            1., 0.,
            RESULT(0,0), 1);

        /* Compute accumulation of scl and ssq */
        for(m = 0; m < A->mt; m++) {
            for(n = 0; n < A->nt; n++) {
                MORSE_TASK_dplssq(
                    &options,
                    VECNORMS_STEP1(m, n),
                    RESULT(0,0));
            }
        }
        /* Compute scl * sqrt(ssq) */
        MORSE_TASK_dplssq2(
            &options,
            RESULT(0,0));

        /* Copy max norm in tiles to dispatch on every nodes */
        for(m = 0; m < A->p; m++) {
            for(n = 0; n < A->q; n++) {
                MORSE_TASK_dlacpy(
                    &options,
                    MorseUpperLower, 1, 1, 1,
                    RESULT(0,0), 1,
                    VECNORMS_STEP1(m, n), 1 );
            }
        }

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        MORSE_Desc_Flush( VECNORMS_STEP1, sequence );
        MORSE_Desc_Flush( RESULT, sequence );
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        RUNTIME_sequence_wait(morse, sequence);
        break;

        /*
         *  MorseMaxNorm
         */
    case MorseMaxNorm:
    default:
        /* Init workspace handle for the call to zlange but unused */
        RUNTIME_options_ws_alloc( &options, 1, 0 );

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        workm = chameleon_max( A->mt, A->p );
        workn = chameleon_max( A->nt, A->q );
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        MORSE_Desc_Create(&(VECNORMS_STEP1), NULL, MorseRealDouble, 1, 1, 1,
                          workm, workn, 0, 0, workm, workn, A->p, A->q);
        MORSE_Desc_Create(&(RESULT), NULL, MorseRealDouble, 1, 1, 1,
                          1, 1, 0, 0, 1, 1, 1, 1);

        /* Compute local maximum to each tile */
        for(m = 0; m < A->mt; m++) {
            tempkm = m == A->mt-1 ? A->m-m*A->mb : A->mb;
            ldam = BLKLDD(A, m);
            for(n = 0; n < A->nt; n++) {
                tempkn = n == A->nt-1 ? A->n-n*A->nb : A->nb;
                MORSE_TASK_zlange(
                    &options,
                    MorseMaxNorm, tempkm, tempkn, A->nb,
                    A(m, n), ldam,
                    VECNORMS_STEP1(m, n));
            }
        }

        /* Initialize RESULT array */
        MORSE_TASK_dlaset(
            &options,
            MorseUpperLower, 1, 1,
            0., 0.,
            RESULT(0,0), 1);

        /* Compute max norm between tiles */
        for(m = 0; m < A->mt; m++) {
            for(n = 0; n < A->nt; n++) {
                MORSE_TASK_dlange_max(
                    &options,
                    VECNORMS_STEP1(m, n),
                    RESULT(0,0));
            }
        }

        /* Copy max norm in tiles to dispatch on every nodes */
        for(m = 0; m < A->p; m++) {
            for(n = 0; n < A->q; n++) {
                MORSE_TASK_dlacpy(
                    &options,
                    MorseUpperLower, 1, 1, 1,
                    RESULT(0,0), 1,
                    VECNORMS_STEP1(m, n), 1 );
            }
        }

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        MORSE_Desc_Flush( VECNORMS_STEP1, sequence );
        MORSE_Desc_Flush( RESULT, sequence );
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        RUNTIME_sequence_wait(morse, sequence);
    }
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    *result = *(double *)VECNORMS_STEP1->get_blkaddr(VECNORMS_STEP1, A->myrank / A->q, A->myrank % A->q );

    MORSE_Desc_Destroy( &(VECNORMS_STEP1) );
    MORSE_Desc_Destroy( &(RESULT) );
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    RUNTIME_options_ws_free(&options);
    RUNTIME_options_finalize(&options, morse);
}