XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_dpor, mc,
"Logging specific to MC DPOR exploration");
+xbt_dynar_t visited_states;
+
+static int is_visited_state(void);
+
+static int is_visited_state(){
+
+ if(_surf_mc_stateful == 0)
+ return 0;
+
+ int raw_mem_set = (mmalloc_get_current_heap() == raw_heap);
+
+ MC_SET_RAW_MEM;
+
+ mc_snapshot_t new_state = NULL;
+ new_state = MC_take_snapshot();
+
+ MC_UNSET_RAW_MEM;
+
+ if(xbt_dynar_is_empty(visited_states)){
+
+ MC_SET_RAW_MEM;
+ xbt_dynar_push(visited_states, &new_state);
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+ return 0;
+
+ }else{
+
+ MC_SET_RAW_MEM;
+
+ unsigned int cursor = 0;
+ mc_snapshot_t state_test = NULL;
+
+ xbt_dynar_foreach(visited_states, cursor, state_test){
+ if(XBT_LOG_ISENABLED(mc_dpor, xbt_log_priority_debug))
+ XBT_DEBUG("****** Pair visited #%d ******", cursor + 1);
+ if(snapshot_compare(new_state, state_test, NULL, NULL) == 0){
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+ else
+ MC_UNSET_RAW_MEM;
+
+ return 1;
+ }
+ }
+
+ if(xbt_dynar_length(visited_states) == _surf_mc_stateful){
+ mc_snapshot_t state_to_remove = NULL;
+ xbt_dynar_shift(visited_states, &state_to_remove);
+ MC_free_snapshot(state_to_remove);
+ }
+
+ xbt_dynar_push(visited_states, &new_state);
+
+ MC_UNSET_RAW_MEM;
+
+ if(raw_mem_set)
+ MC_SET_RAW_MEM;
+
+ return 0;
+
+ }
+}
+
/**
* \brief Initialize the DPOR exploration algorithm
*/
/* Create the initial state and push it into the exploration stack */
MC_SET_RAW_MEM;
+
initial_state = MC_state_new();
+ visited_states = xbt_dynar_new(sizeof(mc_snapshot_t), NULL);
+
MC_UNSET_RAW_MEM;
XBT_DEBUG("**************************************************");
next_state = MC_state_new();
- xbt_swag_foreach(process, simix_global->process_list){
- if(MC_process_is_enabled(process)){
- XBT_DEBUG("Process %lu enabled with simcall : %d", process->pid, (&process->simcall)->call);
+ if(!is_visited_state()){
+
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ XBT_DEBUG("Process %lu enabled with simcall : %d", process->pid, (&process->simcall)->call);
+ }
}
- }
-
- /* Get an enabled process and insert it in the interleave set of the next state */
- xbt_swag_foreach(process, simix_global->process_list){
- if(MC_process_is_enabled(process)){
- MC_state_interleave_process(next_state, process);
- break;
+
+ /* Get an enabled process and insert it in the interleave set of the next state */
+ xbt_swag_foreach(process, simix_global->process_list){
+ if(MC_process_is_enabled(process)){
+ MC_state_interleave_process(next_state, process);
+ break;
+ }
+ }
+
+ if(_surf_mc_checkpoint && ((xbt_fifo_size(mc_stack_safety) + 1) % _surf_mc_checkpoint == 0)){
+ next_state->system_state = MC_take_snapshot();
}
- }
- if(_surf_mc_checkpoint && ((xbt_fifo_size(mc_stack_safety) + 1) % _surf_mc_checkpoint == 0)){
- next_state->system_state = xbt_new0(s_mc_snapshot_t, 1);
- MC_take_snapshot(next_state->system_state);
}
xbt_fifo_unshift(mc_stack_safety, next_state);