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/*
* Copyright 2014-2016 Anton Khirnov <anton@khirnov.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "internal.h"
#include "threadpool.h"
typedef struct EvalPsiArgs {
const BDContext *bd;
double *psi;
ptrdiff_t psi_stride;
const double *rho;
const double *z;
int nb_coords_rho;
int nb_coords_z;
int ret;
} EvalPsiArgs;
#define DIFF 0
#include "eval_psi_radial_template.c"
#undef DIFF
#define DIFF 1
#include "eval_psi_radial_template.c"
#undef DIFF
#define DIFF 2
#include "eval_psi_radial_template.c"
#undef DIFF
#define DIFF 3
#include "eval_psi_radial_template.c"
#undef DIFF
#define DIFF 4
#include "eval_psi_radial_template.c"
#undef DIFF
#define DIFF 6
#include "eval_psi_radial_template.c"
#undef DIFF
typedef void (*EvalPsiRadialFunc)(void *args,
unsigned int job_idx, unsigned int nb_jobs,
unsigned int thread_idx, unsigned int nb_threads);
static const EvalPsiRadialFunc eval_psi_radial_tab[9] = {
[0] = eval_psi_radial_0,
[1] = eval_psi_radial_1,
[2] = eval_psi_radial_2,
[3] = eval_psi_radial_3,
[4] = eval_psi_radial_4,
[6] = eval_psi_radial_6,
};
double bdi_scalarproduct_metric_c(size_t len1, size_t len2, double *mat,
double *vec1, double *vec2)
{
double val = 0.0;
for (int m = 0; m < len2; m++) {
double tmp = 0.0;
for (int n = 0; n < len1; n++)
tmp += mat[m * len1 + n] * vec1[n];
val += tmp * vec2[m];
}
return val;
}
int bdi_eval_psi_radial(const BDContext *bd,
const double *rho, int nb_coords_rho,
const double *z, int nb_coords_z,
const unsigned int diff_order[2],
double *psi, ptrdiff_t psi_stride)
{
ThreadPoolContext *tctx;
BDPriv *s = bd->priv;
int diff_idx = diff_order[1] * 3 + diff_order[0];
int block_size = (nb_coords_z + bd->nb_threads - 1) / bd->nb_threads;
EvalPsiArgs *args;
int ret;
args = calloc(bd->nb_threads, sizeof(*args));
if (!args)
return -ENOMEM;
ret = bdi_threadpool_init(&tctx, bd->nb_threads);
if (ret < 0) {
free(args);
return ret;
}
for (int i = 0; i < bd->nb_threads; i++) {
EvalPsiArgs *a = &args[i];
a->bd = bd;
a->rho = rho;
a->nb_coords_rho = nb_coords_rho;
a->psi_stride = psi_stride;
a->psi = psi + i * block_size * psi_stride;
a->z = z + i * block_size;
a->nb_coords_z = MIN(block_size, nb_coords_z - i * block_size);
}
bdi_threadpool_execute(tctx, bd->nb_threads,
eval_psi_radial_tab[diff_idx], args);
bdi_threadpool_free(&tctx);
for (int i = 0; i < bd->nb_threads; i++)
if (args[i].ret < 0) {
ret = args[i].ret;
break;
}
free(args);
return ret;
}
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