From: Amro Date: Tue, 13 Sep 2016 17:43:27 +0000 (+0300) Subject: move some util tests from comments into separate files X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=17466b0a77584925feb3470499cb681ef07ff3c8;p=nlopt.git move some util tests from comments into separate files --- diff --git a/util/mt19937ar.c b/util/mt19937ar.c index d0b90ac..1ce950b 100644 --- a/util/mt19937ar.c +++ b/util/mt19937ar.c @@ -230,24 +230,3 @@ double nlopt_nrand(double mean, double stddev) return mean + v1 * sqrt(-2 * log(s) / s) * stddev; } } - -#if 0 -#include -int main(void) -{ - int i; - uint32_t init[4]={0x123, 0x234, 0x345, 0x456}, length=4; - init_by_array(init, length); - printf("1000 outputs of nlopt_genrand_int32()\n"); - for (i=0; i<1000; i++) { - printf("%10lu ", nlopt_genrand_int32()); - if (i%5==4) printf("\n"); - } - printf("\n1000 outputs of genrand_real2()\n"); - for (i=0; i<1000; i++) { - printf("%10.8f ", genrand_real2()); - if (i%5==4) printf("\n"); - } - return 0; -} -#endif diff --git a/util/mt19937ar_test.c b/util/mt19937ar_test.c new file mode 100644 index 0000000..29d89a9 --- /dev/null +++ b/util/mt19937ar_test.c @@ -0,0 +1,25 @@ +#include +#include "nlopt-util.h" + +int main(void) +{ + int i; + /* + uint32_t init[4]={0x123, 0x234, 0x345, 0x456}, length=4; + nlopt_init_by_array(init, length); + */ + nlopt_init_genrand(5489UL); + /* nlopt_genrand_int32 */ + printf("1000 outputs of nlopt_iurand()\n"); + for (i=0; i<1000; i++) { + printf("%10d ", nlopt_iurand(0x7fff)); + if (i%5==4) printf("\n"); + } + /* genrand_real2 */ + printf("\n1000 outputs of nlopt_urand()\n"); + for (i=0; i<1000; i++) { + printf("%10.8f ", nlopt_urand(0,1)); + if (i%5==4) printf("\n"); + } + return 0; +} diff --git a/util/sobolseq.c b/util/sobolseq.c index b3bee05..b0eb822 100644 --- a/util/sobolseq.c +++ b/util/sobolseq.c @@ -243,57 +243,3 @@ void nlopt_sobol_skip(nlopt_sobol s, unsigned n, double *x) while (k-- > 0) sobol_gen(s, x); } } - -/************************************************************************/ - -/* compile with -DSOBOLSEQ_TEST for test program */ -#ifdef SOBOLSEQ_TEST -#include -#include - -/* test integrand from Joe and Kuo paper ... integrates to 1 */ -static double testfunc(unsigned n, const double *x) -{ - double f = 1; - unsigned j; - for (j = 1; j <= n; ++j) { - double cj = pow((double) j, 0.3333333333333333333); - f *= (fabs(4*x[j-1] - 2) + cj) / (1 + cj); - } - return f; -} - -int main(int argc, char **argv) -{ - unsigned n, j, i, sdim; - static double x[MAXDIM]; - double testint_sobol = 0, testint_rand = 0; - nlopt_sobol s; - if (argc < 3) { - fprintf(stderr, "Usage: %s \n", argv[0]); - return 1; - } - nlopt_init_genrand(time(NULL)); - sdim = atoi(argv[1]); - s = nlopt_sobol_create(sdim); - n = atoi(argv[2]); - nlopt_sobol_skip(s, n, x); - for (j = 1; j <= n; ++j) { - nlopt_sobol_next01(s, x); - testint_sobol += testfunc(sdim, x); - if (j < 100) { - printf("x[%d]: %g", j, x[0]); - for (i = 1; i < sdim; ++i) printf(", %g", x[i]); - printf("\n"); - } - for (i = 0; i < sdim; ++i) x[i] = nlopt_urand(0.,1.); - testint_rand += testfunc(sdim, x); - } - nlopt_sobol_destroy(s); - printf("Test integral = %g using Sobol, %g using pseudorandom.\n", - testint_sobol / n, testint_rand / n); - printf(" error = %g using Sobol, %g using pseudorandom.\n", - testint_sobol / n - 1, testint_rand / n - 1); - return 0; -} -#endif diff --git a/util/sobolseq_test.c b/util/sobolseq_test.c new file mode 100644 index 0000000..0936ae1 --- /dev/null +++ b/util/sobolseq_test.c @@ -0,0 +1,75 @@ +/* Copyright (c) 2007 Massachusetts Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include +#include "nlopt-util.h" + +#define MAXDIM 1111 + +/* test integrand from Joe and Kuo paper ... integrates to 1 */ +static double testfunc(unsigned n, const double *x) +{ + double f = 1; + unsigned j; + for (j = 1; j <= n; ++j) { + double cj = pow((double) j, 0.3333333333333333333); + f *= (fabs(4*x[j-1] - 2) + cj) / (1 + cj); + } + return f; +} + +int main(int argc, char **argv) +{ + unsigned n, j, i, sdim; + static double x[MAXDIM]; + double testint_sobol = 0, testint_rand = 0; + nlopt_sobol s; + if (argc < 3) { + fprintf(stderr, "Usage: %s \n", argv[0]); + return 1; + } + nlopt_init_genrand(time(NULL)); + sdim = atoi(argv[1]); + s = nlopt_sobol_create(sdim); + n = atoi(argv[2]); + nlopt_sobol_skip(s, n, x); + for (j = 1; j <= n; ++j) { + nlopt_sobol_next01(s, x); + testint_sobol += testfunc(sdim, x); + if (j < 100) { + printf("x[%u]: %g", j, x[0]); + for (i = 1; i < sdim; ++i) printf(", %g", x[i]); + printf("\n"); + } + for (i = 0; i < sdim; ++i) x[i] = nlopt_urand(0.,1.); + testint_rand += testfunc(sdim, x); + } + nlopt_sobol_destroy(s); + printf("Test integral = %g using Sobol, %g using pseudorandom.\n", + testint_sobol / n, testint_rand / n); + printf(" error = %g using Sobol, %g using pseudorandom.\n", + testint_sobol / n - 1, testint_rand / n - 1); + return 0; +}