X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/83a2c3a9dd2104f4db2f42a483b212f07aa39f6b..ebd1b029876be890946f73fc1c36408a6f401536:/src/mc/mc_global.c diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c index fe8508bb6b..3e92841f74 100644 --- a/src/mc/mc_global.c +++ b/src/mc/mc_global.c @@ -29,6 +29,8 @@ e_mc_reduce_t mc_reduce_kind = e_mc_reduce_unset; int _sg_do_model_check = 0; int _sg_mc_checkpoint = 0; +int _sg_mc_sparse_checkpoint = 0; +int _sg_mc_soft_dirty = 0; char *_sg_mc_property_file = NULL; int _sg_mc_timeout = 0; int _sg_mc_hash = 0; @@ -68,6 +70,20 @@ void _mc_cfg_cb_checkpoint(const char *name, int pos) _sg_mc_checkpoint = xbt_cfg_get_int(_sg_cfg_set, name); } +void _mc_cfg_cb_sparse_checkpoint(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a checkpointing value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_sparse_checkpoint = xbt_cfg_get_boolean(_sg_cfg_set, name); +} + +void _mc_cfg_cb_soft_dirty(const char *name, int pos) { + if (_sg_cfg_init_status && !_sg_do_model_check) { + xbt_die("You are specifying a soft dirty value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry."); + } + _sg_mc_soft_dirty = xbt_cfg_get_boolean(_sg_cfg_set, name); +} + void _mc_cfg_cb_property(const char *name, int pos) { if (_sg_cfg_init_status && !_sg_do_model_check) { @@ -222,9 +238,10 @@ static void MC_init_debug_info(void) } +mc_model_checker_t mc_model_checker = NULL; + void MC_init() { - int raw_mem_set = (mmalloc_get_current_heap() == mc_heap); mc_time = xbt_new0(double, simix_process_maxpid); @@ -234,6 +251,11 @@ void MC_init() MC_SET_MC_HEAP; + mc_model_checker = xbt_new0(s_mc_model_checker_t, 1); + mc_model_checker->pages = mc_pages_store_new(); + mc_model_checker->fd_clear_refs = -1; + mc_model_checker->fd_pagemap = -1; + mc_comp_times = xbt_new0(s_mc_comparison_times_t, 1); /* Initialize statistics */ @@ -263,12 +285,16 @@ void MC_init() MC_ignore_local_variable("ctx", "*"); MC_ignore_local_variable("self", "simcall_BODY_mc_snapshot"); - MC_ignore_local_variable("next_context", "smx_ctx_sysv_suspend_serial"); + MC_ignore_local_variable("next_cont" + "ext", "smx_ctx_sysv_suspend_serial"); MC_ignore_local_variable("i", "smx_ctx_sysv_suspend_serial"); /* Ignore local variable about time used for tracing */ MC_ignore_local_variable("start_time", "*"); + MC_ignore_global_variable("mc_model_checker"); + + // Mot of those things could be moved into mc_model_checker: MC_ignore_global_variable("compared_pointers"); MC_ignore_global_variable("mc_comp_times"); MC_ignore_global_variable("mc_snapshot_comparison_time"); @@ -282,6 +308,10 @@ void MC_init() MC_ignore_global_variable("initial_communications_pattern"); MC_ignore_global_variable("incomplete_communications_pattern"); + if (MC_is_active()) { + MC_ignore_global_variable("mc_diff_info"); + } + MC_ignore_heap(mc_time, simix_process_maxpid * sizeof(double)); smx_process_t process; @@ -451,7 +481,7 @@ void MC_wait_for_requests(void) xbt_dynar_foreach(simix_global->process_that_ran, iter, process) { req = &process->simcall; if (req->call != SIMCALL_NONE && !MC_request_is_visible(req)) - SIMIX_simcall_pre(req, 0); + SIMIX_simcall_enter(req, 0); } } } @@ -473,6 +503,31 @@ int MC_deadlock_check() return deadlock; } +void mc_update_comm_pattern(mc_call_type call_type, smx_simcall_t req, int value, xbt_dynar_t pattern) { + switch(call_type) { + case MC_CALL_TYPE_NONE: + break; + case MC_CALL_TYPE_SEND: + case MC_CALL_TYPE_RECV: + get_comm_pattern(pattern, req, call_type); + break; + case MC_CALL_TYPE_WAIT: + { + smx_action_t current_comm = NULL; + if (call_type == MC_CALL_TYPE_WAIT) + current_comm = simcall_comm_wait__get__comm(req); + else + current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_action_t); + // First wait only must be considered: + if (current_comm->comm.refcount == 1) + complete_comm_pattern(pattern, current_comm); + break; + } + default: + xbt_die("Unexpected call type %i", (int)call_type); + } +} + /** * \brief Re-executes from the state at position start all the transitions indicated by * a given model-checker stack. @@ -483,13 +538,12 @@ void MC_replay(xbt_fifo_t stack, int start) { int raw_mem = (mmalloc_get_current_heap() == mc_heap); - int value, i = 1, count = 1, call = 0, j; + int value, i = 1, count = 1, j; char *req_str; smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item, start_item; mc_state_t state; smx_process_t process = NULL; - smx_action_t current_comm; XBT_DEBUG("**** Begin Replay ****"); @@ -546,7 +600,8 @@ void MC_replay(xbt_fifo_t stack, int start) if (mc_reduce_kind == e_mc_reduce_dpor) { MC_SET_MC_HEAP; char *key = bprintf("%lu", saved_req->issuer->pid); - xbt_dict_remove(first_enabled_state, key); + if(xbt_dict_get_or_null(first_enabled_state, key)) + xbt_dict_remove(first_enabled_state, key); xbt_free(key); MC_SET_STD_HEAP; } @@ -564,39 +619,19 @@ void MC_replay(xbt_fifo_t stack, int start) } /* TODO : handle test and testany simcalls */ + mc_call_type call = MC_CALL_TYPE_NONE; if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { - if (req->call == SIMCALL_COMM_ISEND) - call = 1; - else if (req->call == SIMCALL_COMM_IRECV) - call = 2; - else if (req->call == SIMCALL_COMM_WAIT) - call = 3; - else if (req->call == SIMCALL_COMM_WAITANY) - call = 4; + call = mc_get_call_type(req); } - SIMIX_simcall_pre(req, value); + SIMIX_simcall_enter(req, value); if (_sg_mc_comms_determinism || _sg_mc_send_determinism) { MC_SET_MC_HEAP; - if (call == 1) { /* Send */ - get_comm_pattern(communications_pattern, req, call); - } else if (call == 2) { /* Recv */ - get_comm_pattern(communications_pattern, req, call); - } else if (call == 3) { /* Wait */ - current_comm = simcall_comm_wait__get__comm(req); - if (current_comm->comm.refcount == 1) /* First wait only must be considered */ - complete_comm_pattern(communications_pattern, current_comm); - } else if (call == 4) { /* WaitAny */ - current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_action_t); - if (current_comm->comm.refcount == 1) /* First wait only must be considered */ - complete_comm_pattern(communications_pattern, current_comm); - } + mc_update_comm_pattern(call, req, value, communications_pattern); MC_SET_STD_HEAP; - call = 0; } - MC_wait_for_requests(); count++; @@ -639,12 +674,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) initial_global_state->raw_mem_set = (mmalloc_get_current_heap() == mc_heap); - int value; - char *req_str; - smx_simcall_t req = NULL, saved_req = NULL; xbt_fifo_item_t item; - mc_state_t state; - mc_pair_t pair; int depth = 1; XBT_DEBUG("**** Begin Replay ****"); @@ -657,14 +687,17 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) if (!initial_global_state->raw_mem_set) MC_SET_STD_HEAP; - if (all_stack) { - - item = xbt_fifo_get_last_item(stack); + /* Traverse the stack from the initial state and re-execute the transitions */ + for (item = xbt_fifo_get_last_item(stack); + all_stack ? depth <= xbt_fifo_size(stack) : item != xbt_fifo_get_first_item(stack); + item = xbt_fifo_get_prev_item(item)) { - while (depth <= xbt_fifo_size(stack)) { + mc_pair_t pair = (mc_pair_t) xbt_fifo_get_item_content(item); - pair = (mc_pair_t) xbt_fifo_get_item_content(item); - state = (mc_state_t) pair->graph_state; + mc_state_t state = (mc_state_t) pair->graph_state; + smx_simcall_t req = NULL, saved_req = NULL; + int value; + char *req_str; if (pair->requests > 0) { @@ -672,7 +705,7 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) //XBT_DEBUG("SavedReq->call %u", saved_req->call); if (saved_req != NULL) { - /* because we got a copy of the executed request, we have to fetch the + /* because we got a copy of the executed request, we have to fetch the real one, pointed by the request field of the issuer process */ req = &saved_req->issuer->simcall; //XBT_DEBUG("Req->call %u", req->call); @@ -686,60 +719,17 @@ void MC_replay_liveness(xbt_fifo_t stack, int all_stack) } - SIMIX_simcall_pre(req, value); + SIMIX_simcall_enter(req, value); MC_wait_for_requests(); } - depth++; - /* Update statistics */ mc_stats->visited_pairs++; mc_stats->executed_transitions++; - item = xbt_fifo_get_prev_item(item); - } - - } else { - - /* Traverse the stack from the initial state and re-execute the transitions */ - for (item = xbt_fifo_get_last_item(stack); - item != xbt_fifo_get_first_item(stack); - item = xbt_fifo_get_prev_item(item)) { - - pair = (mc_pair_t) xbt_fifo_get_item_content(item); - state = (mc_state_t) pair->graph_state; - - if (pair->requests > 0) { - - saved_req = MC_state_get_executed_request(state, &value); - //XBT_DEBUG("SavedReq->call %u", saved_req->call); - - if (saved_req != NULL) { - /* because we got a copy of the executed request, we have to fetch the - real one, pointed by the request field of the issuer process */ - req = &saved_req->issuer->simcall; - //XBT_DEBUG("Req->call %u", req->call); - - /* Debug information */ - if (XBT_LOG_ISENABLED(mc_global, xbt_log_priority_debug)) { - req_str = MC_request_to_string(req, value); - XBT_DEBUG("Replay (depth = %d) : %s (%p)", depth, req_str, state); - xbt_free(req_str); - } - - } - - SIMIX_simcall_pre(req, value); - MC_wait_for_requests(); - } - depth++; - /* Update statistics */ - mc_stats->visited_pairs++; - mc_stats->executed_transitions++; } - } XBT_DEBUG("**** End Replay ****"); @@ -869,6 +859,8 @@ void MC_dump_stack_liveness(xbt_fifo_t stack) void MC_print_statistics(mc_stats_t stats) { + xbt_mheap_t previous_heap = mmalloc_get_current_heap(); + if (stats->expanded_pairs == 0) { XBT_INFO("Expanded states = %lu", stats->expanded_states); XBT_INFO("Visited states = %lu", stats->visited_states); @@ -890,7 +882,7 @@ void MC_print_statistics(mc_stats_t stats) XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes"); } - MC_SET_STD_HEAP; + mmalloc_set_current_heap(previous_heap); } void MC_assert(int prop)