/* Each time: run the benchmark and delete the output folder */
void run_once(char *observer_options) {
coco_suite_t *suite;
coco_observer_t *observer;
coco_problem_t *problem;
printf("Running experiment with options %s\n", observer_options);
fflush(stdout);
suite = coco_suite("bbob-biobj", NULL, "dimensions: 2 function_indices: 5-6 instance_indices: 2-3");
observer = coco_observer("bbob-biobj", observer_options);
while ((problem = coco_suite_get_next_problem(suite, observer)) != NULL) {
my_optimizer(problem);
}
coco_observer_free(observer);
coco_suite_free(suite);
wait_in_seconds(2); /* So that the directory removal is surely finished */
printf("DONE!\n");
fflush(stdout);
}
/* A test to see if multiple observers/loggers can be wrapped around a problem. */
void multiple_observers(void) {
coco_suite_t *suite;
coco_observer_t *observer_inner, *observer_middle, *observer_outer;
coco_problem_t *problem_inner, *problem_middle, *problem_outer;
suite = coco_suite("bbob-biobj", "year: 2016", "dimensions: 2 function_indices: 1-3 instance_indices: 1-2");
observer_inner = coco_observer("toy", "");
observer_middle = coco_observer("bbob-biobj", "log_nondominated: final log_decision_variables: none");
observer_outer = coco_observer("toy", "");
while ((problem_inner = coco_suite_get_next_problem(suite, observer_inner)) != NULL) {
problem_middle = coco_problem_add_observer(problem_inner, observer_middle);
problem_outer = coco_problem_add_observer(problem_middle, observer_outer);
my_optimizer(problem_outer);
problem_middle = coco_problem_remove_observer(problem_outer, observer_outer);
problem_inner = coco_problem_remove_observer(problem_middle, observer_middle);
}
coco_observer_free(observer_inner);
coco_observer_free(observer_middle);
coco_observer_free(observer_outer);
coco_suite_free(suite);
}
/**
* The archive always contains the two extreme solutions
*/
coco_archive_t *coco_archive(const char *suite_name,
const size_t function,
const size_t dimension,
const size_t instance) {
coco_archive_t *archive = coco_archive_allocate();
int output_precision = 15;
coco_suite_t *suite;
char *suite_instance = coco_strdupf("instances: %lu", (unsigned long) instance);
char *suite_options = coco_strdupf("dimensions: %lu function_indices: %lu",
(unsigned long) dimension, (unsigned long) function);
coco_problem_t *problem;
char *text;
int update;
suite = coco_suite(suite_name, suite_instance, suite_options);
if (suite == NULL) {
coco_error("coco_archive(): cannot create suite '%s'", suite_name);
return NULL; /* Never reached */
}
problem = coco_suite_get_next_problem(suite, NULL);
if (problem == NULL) {
coco_error("coco_archive(): cannot create problem f%02lu_i%02lu_d%02lu in suite '%s'",
(unsigned long) function, (unsigned long) instance, (unsigned long) dimension, suite_name);
return NULL; /* Never reached */
}
/* Store the ideal and nadir points */
archive->ideal = coco_duplicate_vector(problem->best_value, 2);
archive->nadir = coco_duplicate_vector(problem->nadir_value, 2);
/* Add the extreme points to the archive */
text = coco_strdupf("0\t%.*e\t%.*e\n", output_precision, archive->nadir[0], output_precision, archive->ideal[1]);
update = coco_archive_add_solution(archive, archive->nadir[0], archive->ideal[1], text);
coco_free_memory(text);
assert(update == 1);
text = coco_strdupf("0\t%.*e\t%.*e\n", output_precision, archive->ideal[0], output_precision, archive->nadir[1]);
update = coco_archive_add_solution(archive, archive->ideal[0], archive->nadir[1], text);
coco_free_memory(text);
assert(update == 1);
archive->extreme1 = archive->tree->head;
archive->extreme2 = archive->tree->tail;
assert(archive->extreme1 != archive->extreme2);
coco_free_memory(suite_instance);
coco_free_memory(suite_options);
coco_suite_free(suite);
return archive;
}
/*
* Class: CocoJNI
* Method: cocoGetNextProblem
* Signature: (JJ)J
*/
JNIEXPORT jlong JNICALL Java_org_moeaframework_problem_BBOB2016_CocoJNI_cocoGetNextProblem
(JNIEnv *jenv, jclass interface_cls, jlong jsuite_pointer, jlong jobserver_pointer) {
coco_problem_t *problem = NULL;
coco_suite_t *suite = NULL;
coco_observer_t *observer = NULL;
/* This test is both to prevent warning because interface_cls was not used and to check for exceptions */
if (interface_cls == NULL) {
jclass Exception = (*jenv)->FindClass(jenv, "java/lang/Exception");
(*jenv)->ThrowNew(jenv, Exception, "Exception in cocoGetNextProblem\n");
}
suite = (coco_suite_t *) jsuite_pointer;
observer = (coco_observer_t *) jobserver_pointer;
problem = coco_suite_get_next_problem(suite, observer);
if (problem == NULL)
return 0;
return (jlong) problem;
}
