changed default number of threads from 1 to -1 (all available cores)

src/cats/configuration/configuration.c

@@ -75,7 +75,7 @@ void init_cats_configuration(struct cats_configuration *conf)
         conf->output_directory = strdup(DEFAULT_OUTPUT_DIRECTORY);
         conf->stats_populated_threshold = DEFAULT_POPULATED_THRESHOLD;
 
-        conf->param_max_threads = 1;
+        conf->param_max_threads = -1;
         conf->performance_file = NULL;
         conf->grid_count = 1;