view Lib/fftw-3.2.1/libbench2/problem.c @ 1:e86e9c111b29

Updates stuff that potentially fixes the memory leak and also makes it work on Windows and Linux (Need to test). Still have to fix fftw include for linux in Jucer.

/*
 * Copyright (c) 2001 Matteo Frigo
 * Copyright (c) 2001 Massachusetts Institute of Technology
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#include "config.h"
#include "bench.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

int always_pad_real = 0; /* by default, only pad in-place case */

typedef enum {
     SAME, PADDED, HALFISH
} n_transform;

/* funny transformations for last dimension of PROBLEM_REAL */
static int transform_n(int n, n_transform nt)
{
     switch (nt) {
	 case SAME: return n;
	 case PADDED: return 2*(n/2+1);
	 case HALFISH: return (n/2+1);
	 default: BENCH_ASSERT(0); return 0;
     }
}

/* do what I mean */
static bench_tensor *dwim(bench_tensor *t, bench_iodim **last_iodim,
			  n_transform nti, n_transform nto,
			  bench_iodim *dt)
{
     int i;
     bench_iodim *d, *d1;

     if (!FINITE_RNK(t->rnk) || t->rnk < 1)
	  return t;

     i = t->rnk;
     d1 = *last_iodim;

     while (--i >= 0) {
	  d = t->dims + i;
	  if (!d->is) 
	       d->is = d1->is * transform_n(d1->n, d1==dt ? nti : SAME); 
	  if (!d->os) 
	       d->os = d1->os * transform_n(d1->n, d1==dt ? nto : SAME); 
	  d1 = d;
     }

     *last_iodim = d1;
     return t;
}

static void transpose_tensor(bench_tensor *t)
{
     if (!FINITE_RNK(t->rnk) || t->rnk < 2)
          return;

     t->dims[0].os = t->dims[1].os;
     t->dims[1].os = t->dims[0].os * t->dims[0].n;
}

static const char *parseint(const char *s, int *n)
{
     int sign = 1;

     *n = 0;

     if (*s == '-') { 
	  sign = -1;
	  ++s;
     } else if (*s == '+') { 
	  sign = +1; 
	  ++s; 
     }

     BENCH_ASSERT(isdigit(*s));
     while (isdigit(*s)) {
	  *n = *n * 10 + (*s - '0');
	  ++s;
     }
     
     *n *= sign;

     if (*s == 'k' || *s == 'K') {
	  *n *= 1024;
	  ++s;
     }

     if (*s == 'm' || *s == 'M') {
	  *n *= 1024 * 1024;
	  ++s;
     }

     return s;
}

struct dimlist { bench_iodim car; r2r_kind_t k; struct dimlist *cdr; };

static const char *parsetensor(const char *s, bench_tensor **tp,
			       r2r_kind_t **k)
{
     struct dimlist *l = 0, *m;
     bench_tensor *t;
     int rnk = 0;

 L1:
     m = (struct dimlist *)bench_malloc(sizeof(struct dimlist));
     /* nconc onto l */
     m->cdr = l; l = m;
     ++rnk; 

     s = parseint(s, &m->car.n);

     if (*s == ':') {
	  /* read input stride */
	  ++s;
	  s = parseint(s, &m->car.is);
	  if (*s == ':') {
	       /* read output stride */
	       ++s;
	       s = parseint(s, &m->car.os);
	  } else {
	       /* default */
	       m->car.os = m->car.is;
	  }
     } else {
	  m->car.is = 0;
	  m->car.os = 0;
     }

     if (*s == 'f' || *s == 'F') {
	  m->k = R2R_R2HC;
	  ++s;
     }
     else if (*s == 'b' || *s == 'B') {
	  m->k = R2R_HC2R;
	  ++s;
     }
     else if (*s == 'h' || *s == 'H') {
	  m->k = R2R_DHT;
	  ++s;
     }
     else if (*s == 'e' || *s == 'E' || *s == 'o' || *s == 'O') {
	  char c = *(s++);
	  int ab;

	  s = parseint(s, &ab);

	  if (c == 'e' || c == 'E') {
	       if (ab == 0)
		    m->k = R2R_REDFT00;
	       else if (ab == 1)
		    m->k = R2R_REDFT01;
	       else if (ab == 10)
		    m->k = R2R_REDFT10;
	       else if (ab == 11)
		    m->k = R2R_REDFT11;
	       else
		    BENCH_ASSERT(0);
	  }
	  else {
	       if (ab == 0)
		    m->k = R2R_RODFT00;
	       else if (ab == 1)
		    m->k = R2R_RODFT01;
	       else if (ab == 10)
		    m->k = R2R_RODFT10;
	       else if (ab == 11)
		    m->k = R2R_RODFT11;
	       else
		    BENCH_ASSERT(0);
	  }
     }
     else
	  m->k = R2R_R2HC;

     if (*s == 'x' || *s == 'X') {
	  ++s;
	  goto L1;
     }
     
     /* now we have a dimlist.  Build bench_tensor, etc. */

     if (k && rnk > 0) {
	  int i;
	  *k = (r2r_kind_t *) bench_malloc(sizeof(r2r_kind_t) * rnk);
	  for (m = l, i = rnk - 1; i >= 0; --i, m = m->cdr) {
	       BENCH_ASSERT(m);
	       (*k)[i] = m->k;
	  }
     }

     t = mktensor(rnk);
     while (--rnk >= 0) {
	  bench_iodim *d = t->dims + rnk;
	  BENCH_ASSERT(l);
	  m = l; l = m->cdr;
	  d->n = m->car.n;
	  d->is = m->car.is;
	  d->os = m->car.os;
	  bench_free(m);
     }

     *tp = t;
     return s;
}

/* parse a problem description, return a problem */
bench_problem *problem_parse(const char *s)
{
     bench_problem *p;
     bench_iodim last_iodim0 = {1,1,1}, *last_iodim = &last_iodim0;
     bench_iodim *sz_last_iodim;
     bench_tensor *sz;
     n_transform nti = SAME, nto = SAME;
     int transpose = 0;

     p = (bench_problem *) bench_malloc(sizeof(bench_problem));

     p->kind = PROBLEM_COMPLEX;
     p->k = 0;
     p->sign = -1;
     p->in = p->out = 0;
     p->inphys = p->outphys = 0;
     p->in_place = 0;
     p->destroy_input = 0;
     p->split = 0;
     p->userinfo = 0;
     p->scrambled_in = p->scrambled_out = 0;
     p->sz = p->vecsz = 0;
     p->ini = p->outi = 0;
     p->pstring = (char *) bench_malloc(sizeof(char) * (strlen(s) + 1));
     strcpy(p->pstring, s);

 L1:
     switch (tolower(*s)) {
	 case 'i': p->in_place = 1; ++s; goto L1;
	 case 'o': p->in_place = 0; ++s; goto L1;
	 case 'd': p->destroy_input = 1; ++s; goto L1;
	 case '/': p->split = 1; ++s; goto L1;
	 case 'f': 
	 case '-': p->sign = -1; ++s; goto L1;
	 case 'b': 
	 case '+': p->sign = 1; ++s; goto L1;
	 case 'r': p->kind = PROBLEM_REAL; ++s; goto L1;
	 case 'c': p->kind = PROBLEM_COMPLEX; ++s; goto L1;
	 case 'k': p->kind = PROBLEM_R2R; ++s; goto L1;
	 case 't': transpose = 1; ++s; goto L1;
	      
	 /* hack for MPI: */
	 case '[': p->scrambled_in = 1; ++s; goto L1;
	 case ']': p->scrambled_out = 1; ++s; goto L1;

	 default : ;
     }

     s = parsetensor(s, &sz, p->kind == PROBLEM_R2R ? &p->k : 0);

     if (p->kind == PROBLEM_REAL) {
	  if (p->sign < 0) {
	       nti = p->in_place || always_pad_real ? PADDED : SAME;
	       nto = HALFISH;
	  }
	  else {
	       nti = HALFISH;
	       nto = p->in_place || always_pad_real ? PADDED : SAME;
	  }
     }

     sz_last_iodim = sz->dims + sz->rnk - 1;
     if (*s == '*') { /* "external" vector */
	  ++s;
	  p->sz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
	  s = parsetensor(s, &sz, 0);
	  p->vecsz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
     } else if (*s == 'v' || *s == 'V') { /* "internal" vector */
	  bench_tensor *vecsz;
	  ++s;
	  s = parsetensor(s, &vecsz, 0);
	  p->vecsz = dwim(vecsz, &last_iodim, nti, nto, sz_last_iodim);
	  p->sz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
     } else {
	  p->sz = dwim(sz, &last_iodim, nti, nto, sz_last_iodim);
	  p->vecsz = mktensor(0);
     }

     if (transpose) {
	  transpose_tensor(p->sz);
	  transpose_tensor(p->vecsz);
     }

     if (!p->in_place)
	  p->out = ((bench_real *) p->in) + (1 << 20);  /* whatever */

     BENCH_ASSERT(p->sz && p->vecsz);
     BENCH_ASSERT(!*s);
     return p;
}

void problem_destroy(bench_problem *p)
{
     BENCH_ASSERT(p);
     problem_free(p);
     bench_free0(p->k);
     bench_free0(p->pstring);
     bench_free(p);
}