mirror of
https://github.com/tildearrow/furnace.git
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328 lines
7.5 KiB
C
328 lines
7.5 KiB
C
/*
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* Copyright (c) 2001 Matteo Frigo
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* Copyright (c) 2001 Massachusetts Institute of Technology
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "config.h"
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#include "libbench2/bench.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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int always_pad_real = 0; /* by default, only pad in-place case */
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typedef enum {
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SAME, PADDED, HALFISH
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} n_transform;
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/* funny transformations for last dimension of PROBLEM_REAL */
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static int transform_n(int n, n_transform nt)
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{
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switch (nt) {
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case SAME: return n;
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case PADDED: return 2*(n/2+1);
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case HALFISH: return (n/2+1);
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default: BENCH_ASSERT(0); return 0;
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}
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}
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/* do what I mean */
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static bench_tensor *dwim(bench_tensor *t, bench_iodim **last_iodim,
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n_transform nti, n_transform nto,
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bench_iodim *dt)
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{
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int i;
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bench_iodim *d, *d1;
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if (!BENCH_FINITE_RNK(t->rnk) || t->rnk < 1)
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return t;
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i = t->rnk;
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d1 = *last_iodim;
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while (--i >= 0) {
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d = t->dims + i;
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if (!d->is)
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d->is = d1->is * transform_n(d1->n, d1==dt ? nti : SAME);
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if (!d->os)
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d->os = d1->os * transform_n(d1->n, d1==dt ? nto : SAME);
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d1 = d;
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}
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*last_iodim = d1;
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return t;
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}
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static void transpose_tensor(bench_tensor *t)
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{
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if (!BENCH_FINITE_RNK(t->rnk) || t->rnk < 2)
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return;
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t->dims[0].os = t->dims[1].os;
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t->dims[1].os = t->dims[0].os * t->dims[0].n;
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}
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static const char *parseint(const char *s, int *n)
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{
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int sign = 1;
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*n = 0;
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if (*s == '-') {
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sign = -1;
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++s;
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} else if (*s == '+') {
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sign = +1;
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++s;
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}
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BENCH_ASSERT(isdigit(*s));
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while (isdigit(*s)) {
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*n = *n * 10 + (*s - '0');
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++s;
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}
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*n *= sign;
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if (*s == 'k' || *s == 'K') {
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*n *= 1024;
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++s;
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}
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if (*s == 'm' || *s == 'M') {
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*n *= 1024 * 1024;
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++s;
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}
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return s;
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}
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struct dimlist { bench_iodim car; r2r_kind_t k; struct dimlist *cdr; };
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static const char *parsetensor(const char *s, bench_tensor **tp,
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r2r_kind_t **k)
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{
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struct dimlist *l = 0, *m;
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bench_tensor *t;
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int rnk = 0;
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L1:
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m = (struct dimlist *)bench_malloc(sizeof(struct dimlist));
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/* nconc onto l */
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m->cdr = l; l = m;
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++rnk;
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s = parseint(s, &m->car.n);
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if (*s == ':') {
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/* read input stride */
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++s;
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s = parseint(s, &m->car.is);
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if (*s == ':') {
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/* read output stride */
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++s;
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s = parseint(s, &m->car.os);
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} else {
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/* default */
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m->car.os = m->car.is;
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}
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} else {
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m->car.is = 0;
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m->car.os = 0;
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}
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if (*s == 'f' || *s == 'F') {
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m->k = R2R_R2HC;
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++s;
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}
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else if (*s == 'b' || *s == 'B') {
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m->k = R2R_HC2R;
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++s;
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}
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else if (*s == 'h' || *s == 'H') {
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m->k = R2R_DHT;
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++s;
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}
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else if (*s == 'e' || *s == 'E' || *s == 'o' || *s == 'O') {
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char c = *(s++);
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int ab;
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s = parseint(s, &ab);
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if (c == 'e' || c == 'E') {
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if (ab == 0)
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m->k = R2R_REDFT00;
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else if (ab == 1)
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m->k = R2R_REDFT01;
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else if (ab == 10)
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m->k = R2R_REDFT10;
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else if (ab == 11)
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m->k = R2R_REDFT11;
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else
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BENCH_ASSERT(0);
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}
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else {
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if (ab == 0)
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m->k = R2R_RODFT00;
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else if (ab == 1)
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m->k = R2R_RODFT01;
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else if (ab == 10)
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m->k = R2R_RODFT10;
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else if (ab == 11)
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m->k = R2R_RODFT11;
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else
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BENCH_ASSERT(0);
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}
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}
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else
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m->k = R2R_R2HC;
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if (*s == 'x' || *s == 'X') {
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++s;
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goto L1;
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}
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/* now we have a dimlist. Build bench_tensor, etc. */
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if (k && rnk > 0) {
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int i;
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*k = (r2r_kind_t *) bench_malloc(sizeof(r2r_kind_t) * rnk);
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for (m = l, i = rnk - 1; i >= 0; --i, m = m->cdr) {
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BENCH_ASSERT(m);
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(*k)[i] = m->k;
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}
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}
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t = mktensor(rnk);
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while (--rnk >= 0) {
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bench_iodim *d = t->dims + rnk;
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BENCH_ASSERT(l);
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m = l; l = m->cdr;
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d->n = m->car.n;
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d->is = m->car.is;
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d->os = m->car.os;
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bench_free(m);
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}
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*tp = t;
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return s;
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}
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/* parse a problem description, return a problem */
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bench_problem *problem_parse(const char *s)
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{
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bench_problem *p;
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bench_iodim last_iodim0 = {1,1,1}, *last_iodim = &last_iodim0;
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bench_iodim *sz_last_iodim;
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bench_tensor *sz;
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n_transform nti = SAME, nto = SAME;
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int transpose = 0;
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p = (bench_problem *) bench_malloc(sizeof(bench_problem));
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p->kind = PROBLEM_COMPLEX;
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p->k = 0;
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p->sign = -1;
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p->in = p->out = 0;
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p->inphys = p->outphys = 0;
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p->iphyssz = p->ophyssz = 0;
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p->in_place = 0;
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p->destroy_input = 0;
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p->split = 0;
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p->userinfo = 0;
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p->scrambled_in = p->scrambled_out = 0;
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p->sz = p->vecsz = 0;
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p->ini = p->outi = 0;
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p->pstring = (char *) bench_malloc(sizeof(char) * (strlen(s) + 1));
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strcpy(p->pstring, s);
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L1:
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switch (tolower(*s)) {
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case 'i': p->in_place = 1; ++s; goto L1;
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case 'o': p->in_place = 0; ++s; goto L1;
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case 'd': p->destroy_input = 1; ++s; goto L1;
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case '/': p->split = 1; ++s; goto L1;
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case 'f':
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case '-': p->sign = -1; ++s; goto L1;
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case 'b':
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case '+': p->sign = 1; ++s; goto L1;
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case 'r': p->kind = PROBLEM_REAL; ++s; goto L1;
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case 'c': p->kind = PROBLEM_COMPLEX; ++s; goto L1;
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case 'k': p->kind = PROBLEM_R2R; ++s; goto L1;
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case 't': transpose = 1; ++s; goto L1;
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/* hack for MPI: */
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case '[': p->scrambled_in = 1; ++s; goto L1;
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case ']': p->scrambled_out = 1; ++s; goto L1;
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default : ;
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}
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s = parsetensor(s, &sz, p->kind == PROBLEM_R2R ? &p->k : 0);
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if (p->kind == PROBLEM_REAL) {
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if (p->sign < 0) {
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nti = p->in_place || always_pad_real ? PADDED : SAME;
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nto = HALFISH;
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}
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else {
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nti = HALFISH;
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nto = p->in_place || always_pad_real ? PADDED : SAME;
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}
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}
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sz_last_iodim = sz->dims + sz->rnk - 1;
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if (*s == '*') { /* "external" vector */
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++s;
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p->sz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
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s = parsetensor(s, &sz, 0);
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p->vecsz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
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} else if (*s == 'v' || *s == 'V') { /* "internal" vector */
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bench_tensor *vecsz;
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++s;
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s = parsetensor(s, &vecsz, 0);
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p->vecsz = dwim(vecsz, &last_iodim, nti, nto, sz_last_iodim);
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p->sz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
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} else {
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p->sz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
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p->vecsz = mktensor(0);
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}
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if (transpose) {
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transpose_tensor(p->sz);
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transpose_tensor(p->vecsz);
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}
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if (!p->in_place)
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p->out = ((bench_real *) p->in) + (1 << 20); /* whatever */
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BENCH_ASSERT(p->sz && p->vecsz);
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BENCH_ASSERT(!*s);
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return p;
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}
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void problem_destroy(bench_problem *p)
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{
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BENCH_ASSERT(p);
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problem_free(p);
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bench_free0(p->k);
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bench_free0(p->pstring);
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bench_free(p);
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}
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