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/*
* Copyright (c) 1997-1999, 2003 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
*
*/
/* $Id: test_cilk.cilk,v 1.11 2003/03/16 23:43:46 stevenj Exp $ */
#include <cilk.h>
#include <cilk-lib.h>
#include <math.h>
#include <stdio.h>
#include <time.h>
#include "fftw_cilk.cilkh"
/* Maximum array sizes in test gets multiplied by this. Change it
to a bigger number (e.g. 10) if you want to run bigger tests
and have enough memory. */
#define SIZE_MULT 4
#ifndef RAND_MAX
#define RAND_MAX 32767
#endif
#define NUM_ITER 20
#define USE_RANDOM 1 /* use superior random() function instead of rand() */
#if USE_RANDOM
#define rand random
#define srand srandom
#define RANDOM_MAX 2147483647
#else
#define RANDOM_MAX RAND_MAX
#endif
extern cilk void test_fft(int rank, int istride, int ostride, long max_size,
long num_iters, short in_place, fftw_direction dir);
cilk int main(int argc, char **argv)
{
srand(clock());
/* Test forward transforms: */
sync;
spawn test_fft(1, 1, 1, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(1, 1, 1, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(2, 1, 1, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(2, 1, 1, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(3, 1, 1, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(3, 1, 1, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(4, 1, 1, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(4, 1, 1, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(5, 1, 1, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(5, 1, 1, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(1, 2, 3, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(1, 2, 3, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(2, 2, 3, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(2, 2, 3, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(3, 2, 3, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(3, 2, 3, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(4, 2, 3, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(4, 2, 3, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(5, 2, 3, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(5, 2, 3, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(1, 3, 2, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(1, 3, 2, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(2, 3, 2, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(2, 3, 2, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(3, 3, 2, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(3, 3, 2, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(4, 3, 2, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(4, 3, 2, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(5, 3, 2, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(5, 3, 2, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(1, 3, 3, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(1, 3, 3, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(2, 3, 3, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(2, 3, 3, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(3, 3, 3, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(3, 3, 3, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(4, 3, 3, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(4, 3, 3, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
sync;
spawn test_fft(5, 3, 3, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_FORWARD);
sync;
spawn test_fft(5, 3, 3, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_FORWARD);
/* Test backward transforms */
sync;
spawn test_fft(1, 1, 1, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(1, 1, 1, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(2, 1, 1, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(2, 1, 1, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(3, 1, 1, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(3, 1, 1, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(4, 1, 1, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(4, 1, 1, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(5, 1, 1, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(5, 1, 1, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(1, 2, 3, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(1, 2, 3, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(2, 2, 3, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(2, 2, 3, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(3, 2, 3, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(3, 2, 3, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(4, 2, 3, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(4, 2, 3, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(5, 2, 3, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(5, 2, 3, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(1, 3, 2, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(1, 3, 2, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(2, 3, 2, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(2, 3, 2, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(3, 3, 2, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(3, 3, 2, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(4, 3, 2, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(4, 3, 2, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(5, 3, 2, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(5, 3, 2, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(1, 3, 3, 64 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(1, 3, 3, 64 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(2, 3, 3, 32 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(2, 3, 3, 32 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(3, 3, 3, 10 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(3, 3, 3, 10 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(4, 3, 3, 4 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(4, 3, 3, 4 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
sync;
spawn test_fft(5, 3, 3, 2 * SIZE_MULT, NUM_ITER, 0, FFTW_BACKWARD);
sync;
spawn test_fft(5, 3, 3, 2 * SIZE_MULT, NUM_ITER, 1, FFTW_BACKWARD);
return 0;
}
#define MAX_RANK 10
#define CLOSE(a,b) (fabs((a) - (b))*2.0/(fabs(a)+fabs(b)+0.1) < 1e-3)
int factors_ok(long num);
cilk void test_fft(int rank, int istride, int ostride,
long max_size,
long num_iters, short in_place,
fftw_direction dir)
{
int dims[MAX_RANK];
long dims_reverse[MAX_RANK];
fftw_real *a1, *a2, *a3;
long i, j;
int howmany;
long n_total, iter;
fftwnd_plan plan, seq_plan;
if (rank > MAX_RANK || rank < 1)
return;
if (in_place)
printf("TESTING RANK %d, stride %d/%d, sign %+d (in-place fftwnd)...\n", rank, istride, ostride, (int) dir);
else
printf("TESTING RANK %d, stride %d/%d, sign %+d (out-of-place fftwnd)...\n", rank, istride, ostride, (int) dir);
for (iter = 0; iter < num_iters; ++iter) {
printf(" Testing ");
fflush(stdout);
n_total = 1;
for (i = 0; i < rank; ++i) {
dims[i] = (rand() % max_size) + 1;
if (i)
printf("x%d", dims[i]);
else
printf("%d", dims[i]);
dims_reverse[rank - 1 - i] = dims[i];
n_total *= dims[i];
}
printf("...");
fflush(stdout);
seq_plan = fftwnd_create_plan(rank,dims,dir,FFTW_ESTIMATE |
FFTW_IN_PLACE);
if ((rank != 2 && rank != 3) || (rand() & 1)) {
if (in_place)
plan =
fftwnd_create_plan(rank, dims, dir, FFTW_ESTIMATE | FFTW_IN_PLACE);
else
plan =
fftwnd_create_plan(rank, dims, dir, FFTW_ESTIMATE);
}
/* for rank 2 and 3 arrays, use the optional interface 1/2 the
* time: */
else if (rank == 2) {
printf("(opt. interface)...");
if (in_place)
plan =
fftw2d_create_plan(dims[0], dims[1], dir, FFTW_ESTIMATE | FFTW_IN_PLACE);
else
plan =
fftw2d_create_plan(dims[0], dims[1], dir, FFTW_ESTIMATE);
} else if (rank == 3) {
printf("(opt. interface)...");
if (in_place)
plan =
fftw3d_create_plan(dims[0], dims[1], dims[2], dir, FFTW_ESTIMATE | FFTW_IN_PLACE);
else
plan =
fftw3d_create_plan(dims[0], dims[1], dims[2], dir, FFTW_ESTIMATE);
}
if (!plan) {
printf("\nError creating plan!\n");
exit(1);
}
a1 = malloc(n_total * 2 * sizeof(fftw_real));
a2 = malloc(n_total * 2 * sizeof(fftw_real) * istride);
if (in_place) {
a3 = a2;
ostride = istride;
} else
a3 = malloc(n_total * 2 * sizeof(fftw_real) * ostride);
if (!a1 || !a2 || !a3) {
printf("\nERROR: Out of memory (need at least %ld bytes)\n", (n_total * 2 + n_total * 4) * sizeof(fftw_real));
exit(1);
}
for (i = 0; i < n_total; ++i) {
a1[2 * i] = (rand() - (RANDOM_MAX >> 1)) * 2.0 / RANDOM_MAX;
a1[2 * i + 1] = (rand() - (RANDOM_MAX >> 1)) * 2.0 /
RANDOM_MAX;
for (j = 0; j < istride; ++j) {
a2[2 * (i * istride + j)] = a1[2 * i];
a2[2 * (i * istride + j) + 1] = a1[2 * i + 1];
}
}
howmany = istride;
if (howmany > ostride)
howmany = ostride;
printf("fftwnd_cilk...");
fflush(stdout);
/* FFT using parallelfftwnd_cilk */
spawn fftwnd_cilk(plan, howmany, (fftw_complex *) a2, istride, 1,
(fftw_complex *) a3, ostride, 1);
sync;
printf("fftwnd...");
fflush(stdout);
if (seq_plan->is_in_place != FFTW_IN_PLACE) {
printf("\n\nCorrupted plan! (Illegal in-place flag.)\n");
exit(1);
}
/* FFT using sequential fftw */
fftwnd(seq_plan,1,(fftw_complex *) a1, 1, 1, 0, 0, 0);
/* Check results: */
for (i = 0; i < n_total; ++i)
for (j = 0; j < howmany; ++j) {
if (!CLOSE(a1[2 * i], a3[2 * (i * ostride + j)])) {
printf("error!\nFFT's different in real part at i=%ld: %g vs. %g\n",
i, a1[2*i], a3[2*(i * ostride + j)]);
exit(1);
}
if (!CLOSE(a1[2 * i + 1], a3[2 * (i * ostride +
j) + 1])) {
printf("error!\nFFT's different in imag. part at i=%ld: %g vs. %g\n",
i, a1[2*i+1], a3[2*(i * ostride + j)+1]);
exit(1);
}
}
free(a1);
free(a2);
if (a3 != a2)
free(a3);
fftwnd_destroy_plan(plan);
fftwnd_destroy_plan(seq_plan);
printf("okay!\n");
fflush(stdout);
fftw_check_memory_leaks();
}
}
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