"Logging specific to SIMIX (network)");
static xbt_dict_t rdv_points = NULL;
+unsigned long int smx_total_comms = 0;
-static XBT_INLINE void SIMIX_comm_start(smx_action_t action);
-static void SIMIX_comm_finish(smx_action_t action);
static void SIMIX_waitany_req_remove_from_actions(smx_req_t req);
static void SIMIX_comm_copy_data(smx_action_t comm);
static smx_action_t SIMIX_comm_new(e_smx_comm_type_t type);
-static XBT_INLINE void SIMIX_comm_wait_for_completion(smx_action_t comm,
- double timeout);
static XBT_INLINE void SIMIX_rdv_push(smx_rdv_t rdv, smx_action_t comm);
static XBT_INLINE void SIMIX_rdv_remove(smx_rdv_t rdv, smx_action_t comm);
static smx_action_t SIMIX_rdv_get_request(smx_rdv_t rdv, e_smx_comm_type_t type,
- int (*match_fun)(void *, void *), void *);
+ int (*match_fun)(void *, void *), void *);
static void SIMIX_rdv_free(void *data);
void SIMIX_network_init(void)
rdv->name = name ? xbt_strdup(name) : NULL;
rdv->comm_fifo = xbt_fifo_new();
- if (name)
- xbt_dict_set(rdv_points, name, rdv, SIMIX_rdv_free);
+ if (rdv->name)
+ xbt_dict_set(rdv_points, rdv->name, rdv, SIMIX_rdv_free);
}
return rdv;
}
void SIMIX_rdv_destroy(smx_rdv_t rdv)
{
if (rdv->name)
- xbt_dict_remove(rdv_points, rdv->name);
+ xbt_dict_remove(rdv_points, rdv->name);
}
void SIMIX_rdv_free(void *data)
}
/**
- * \brief Checks if there is a communication request queued in a rendez-vous matching our needs
+ * \brief Wrapper to SIMIX_rdv_get_request
+ */
+smx_action_t SIMIX_comm_get_send_match(smx_rdv_t rdv, int (*match_fun)(void*, void*), void* data) {
+ return SIMIX_rdv_get_request(rdv, SIMIX_COMM_SEND, match_fun, data);
+}
+
+/**
+ * \brief Checks if there is a communication action queued in a rendez-vous matching our needs
* \param type The type of communication we are looking for (comm_send, comm_recv)
- * \return The communication request if found, NULL otherwise
+ * \return The communication action if found, NULL otherwise
*/
smx_action_t SIMIX_rdv_get_request(smx_rdv_t rdv, e_smx_comm_type_t type,
- int (*match_fun)(void *, void *), void *data)
+ int (*match_fun)(void *, void *), void *data)
{
- smx_action_t req;
+ // FIXME rewrite this function by using SIMIX_rdv_has_send/recv_match
+ smx_action_t action;
xbt_fifo_item_t item;
+ void* req_data = NULL;
- xbt_fifo_foreach(rdv->comm_fifo, item, req, smx_action_t){
- if(req->comm.type == type && (!match_fun || match_fun(data, req->comm.data))){
- xbt_fifo_remove_item(rdv->comm_fifo, item);
- req->comm.refcount++;
- req->comm.rdv = NULL;
- return req;
- }
+ xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t){
+ if (action->comm.type == SIMIX_COMM_SEND) {
+ req_data = action->comm.src_data;
+ } else if (action->comm.type == SIMIX_COMM_RECEIVE) {
+ req_data = action->comm.dst_data;
+ }
+ if (action->comm.type == type && (!match_fun || match_fun(data, req_data))) {
+ XBT_DEBUG("Found a matching communication action %p", action);
+ xbt_fifo_remove_item(rdv->comm_fifo, item);
+ xbt_fifo_free_item(item);
+ action->comm.refcount++;
+ action->comm.rdv = NULL;
+ return action;
+ }
+ XBT_DEBUG("Sorry, communication action %p does not match our needs:"
+ " its type is %d but we are looking for a comm of type %d",
+ action, action->comm.type, type);
}
-
- DEBUG0("Communication request not found");
+ XBT_DEBUG("No matching communication action found");
return NULL;
}
+/**
+ * \brief Checks if there is a send communication action
+ * queued in a rendez-vous matching our needs.
+ * \return 1 if found, 0 otherwise
+ */
+int SIMIX_comm_has_send_match(smx_rdv_t rdv, int (*match_fun)(void*, void*), void* data) {
+
+ smx_action_t action;
+ xbt_fifo_item_t item;
+
+ xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t){
+ if (action->comm.type == SIMIX_COMM_SEND
+ && (!match_fun || match_fun(data, action->comm.src_data))) {
+ XBT_DEBUG("Found a matching communication action %p", action);
+ return 1;
+ }
+ }
+ XBT_DEBUG("No matching communication action found");
+ return 0;
+}
+
+/**
+ * \brief Checks if there is a recv communication action
+ * queued in a rendez-vous matching our needs.
+ * \return 1 if found, 0 otherwise
+ */
+int SIMIX_comm_has_recv_match(smx_rdv_t rdv, int (*match_fun)(void*, void*), void* data) {
+
+ smx_action_t action;
+ xbt_fifo_item_t item;
+
+ xbt_fifo_foreach(rdv->comm_fifo, item, action, smx_action_t){
+ if (action->comm.type == SIMIX_COMM_RECEIVE
+ && (!match_fun || match_fun(data, action->comm.dst_data))) {
+ XBT_DEBUG("Found a matching communication action %p", action);
+ return 1;
+ }
+ }
+ XBT_DEBUG("No matching communication action found");
+ return 0;
+}
+
/******************************************************************************/
/* Comunication Actions */
/******************************************************************************/
smx_action_t act;
/* alloc structures */
- act = xbt_new0(s_smx_action_t, 1);
+ act = xbt_mallocator_get(simix_global->action_mallocator);
act->type = SIMIX_ACTION_COMMUNICATE;
act->state = SIMIX_WAITING;
- act->request_list = xbt_fifo_new();
/* set communication */
act->comm.type = type;
act->comm.refcount = 1;
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ //initialize with unknown value
+ act->latency_limited = -1;
+#endif
+
#ifdef HAVE_TRACING
act->category = NULL;
#endif
- DEBUG1("Create communicate action %p", act);
+ XBT_DEBUG("Create communicate action %p", act);
+ ++smx_total_comms;
return act;
}
*/
void SIMIX_comm_destroy(smx_action_t action)
{
- DEBUG1("Destroy action %p", action);
+ XBT_DEBUG("Destroy action %p (refcount:%d)", action, action->comm.refcount);
if (action->comm.refcount <= 0)
- xbt_die(bprintf("the refcount of comm %p is already 0 before decreasing it. That's a bug!",action));
-
-#ifdef HAVE_LATENCY_BOUND_TRACKING
- //save is latency limited flag to use afterwards
- if (action->comm.surf_comm) {
- DEBUG2("adding key %p with latency limited value %d to the dict", action,
- SIMIX_comm_is_latency_bounded(action));
- xbt_dicti_set(simix_global->latency_limited_dict, (uintptr_t) action,
- SIMIX_comm_is_latency_bounded(action));
- }
-#endif
+ xbt_die("the refcount of comm %p is already 0 before decreasing it. "
+ "That's a bug!", action);
action->comm.refcount--;
if (action->comm.refcount > 0)
return;
- VERB2("Really free communication %p; refcount is now %d", action,
+ XBT_DEBUG("Really free communication %p; refcount is now %d", action,
action->comm.refcount);
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ action->latency_limited = SIMIX_comm_is_latency_bounded( action ) ;
+#endif
+
#ifdef HAVE_TRACING
TRACE_smx_action_destroy(action);
#endif
- if (action->name)
- xbt_free(action->name);
-
- xbt_fifo_free(action->request_list);
-
+ xbt_free(action->name);
SIMIX_comm_destroy_internal_actions(action);
- xbt_free(action);
+ if (action->comm.detached && action->state != SIMIX_DONE) {
+ /* the communication has failed and was detached:
+ * we have to free the buffer */
+ ((void_f_pvoid_t) action->comm.src_data)(action->comm.src_buff);
+ }
+
+ xbt_mallocator_release(simix_global->action_mallocator, action);
}
void SIMIX_comm_destroy_internal_actions(smx_action_t action)
{
if (action->comm.surf_comm){
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ action->latency_limited = SIMIX_comm_is_latency_bounded(action);
+#endif
action->comm.surf_comm->model_type->action_unref(action->comm.surf_comm);
action->comm.surf_comm = NULL;
}
smx_action_t SIMIX_comm_isend(smx_process_t src_proc, smx_rdv_t rdv,
double task_size, double rate,
void *src_buff, size_t src_buff_size,
- int (*match_fun)(void *, void *), void *data)
+ int (*match_fun)(void *, void *), void *data,
+ int detached)
{
smx_action_t action;
action->comm.type = SIMIX_COMM_READY;
}
+ /* If the communication action is detached then decrease the refcount
+ * by one, so it will be eliminated by the receivers destroy call */
+ if (detached) {
+ action->comm.detached = 1;
+ action->comm.refcount--;
+ }
+
/* Setup the communication request */
action->comm.src_proc = src_proc;
action->comm.task_size = task_size;
action->comm.rate = rate;
action->comm.src_buff = src_buff;
action->comm.src_buff_size = src_buff_size;
- action->comm.data = data;
+ action->comm.src_data = data;
if (MC_IS_ENABLED) {
action->state = SIMIX_RUNNING;
action->comm.dst_proc = dst_proc;
action->comm.dst_buff = dst_buff;
action->comm.dst_buff_size = dst_buff_size;
+ action->comm.dst_data = data;
if (MC_IS_ENABLED) {
action->state = SIMIX_RUNNING;
return action;
}
-void SIMIX_pre_comm_wait(smx_req_t req)
+void SIMIX_pre_comm_wait(smx_req_t req, smx_action_t action, double timeout, int idx)
{
- smx_action_t action = req->comm_wait.comm;
- double timeout = req->comm_wait.timeout;
+ /* the request may be a wait, a send or a recv */
surf_action_t sleep;
/* Associate this request to the action */
xbt_fifo_push(action->request_list, req);
req->issuer->waiting_action = action;
- if (MC_IS_ENABLED){
- action->state = SIMIX_DONE;
+ if (MC_IS_ENABLED) {
+ if (idx == 0) {
+ action->state = SIMIX_DONE;
+ } else {
+ /* If we reached this point, the wait request must have a timeout */
+ /* Otherwise it shouldn't be enabled and executed by the MC */
+ if (timeout == -1)
+ THROW_IMPOSSIBLE;
+
+ if (action->comm.src_proc == req->issuer)
+ action->state = SIMIX_SRC_TIMEOUT;
+ else
+ action->state = SIMIX_DST_TIMEOUT;
+ }
+
SIMIX_comm_finish(action);
+ return;
}
/* If the action has already finish perform the error handling, */
void SIMIX_pre_comm_test(smx_req_t req)
{
smx_action_t action = req->comm_test.comm;
- req->comm_test.result = (action->state != SIMIX_WAITING && action->state != SIMIX_RUNNING);
+ if(MC_IS_ENABLED){
+ req->comm_test.result = action->comm.src_proc && action->comm.dst_proc;
+ if(req->comm_test.result){
+ action->state = SIMIX_DONE;
+ xbt_fifo_push(action->request_list, req);
+ SIMIX_comm_finish(action);
+ }else{
+ SIMIX_request_answer(req);
+ }
+ return;
+ }
+
+ req->comm_test.result = (action->state != SIMIX_WAITING && action->state != SIMIX_RUNNING);
if (req->comm_test.result) {
xbt_fifo_push(action->request_list, req);
SIMIX_comm_finish(action);
- }
- else {
+ } else {
SIMIX_request_answer(req);
}
}
-void SIMIX_pre_comm_testany(smx_req_t req)
+void SIMIX_pre_comm_testany(smx_req_t req, int idx)
{
unsigned int cursor;
smx_action_t action;
+ xbt_dynar_t actions = req->comm_testany.comms;
req->comm_testany.result = -1;
+
+ if (MC_IS_ENABLED){
+ if(idx == -1){
+ SIMIX_request_answer(req);
+ }else{
+ action = xbt_dynar_get_as(actions, idx, smx_action_t);
+ req->comm_testany.result = idx;
+ xbt_fifo_push(action->request_list, req);
+ action->state = SIMIX_DONE;
+ SIMIX_comm_finish(action);
+ }
+ return;
+ }
+
xbt_dynar_foreach(req->comm_testany.comms,cursor,action) {
if (action->state != SIMIX_WAITING && action->state != SIMIX_RUNNING) {
req->comm_testany.result = cursor;
xbt_fifo_push(action->request_list, req);
SIMIX_comm_finish(action);
- break;
+ return;
}
}
SIMIX_request_answer(req);
}
-void SIMIX_pre_comm_waitany(smx_req_t req)
+void SIMIX_pre_comm_waitany(smx_req_t req, int idx)
{
smx_action_t action;
unsigned int cursor = 0;
xbt_dynar_t actions = req->comm_waitany.comms;
+
+ if (MC_IS_ENABLED){
+ action = xbt_dynar_get_as(actions, idx, smx_action_t);
+ xbt_fifo_push(action->request_list, req);
+ req->comm_waitany.result = idx;
+ action->state = SIMIX_DONE;
+ SIMIX_comm_finish(action);
+ return;
+ }
+
xbt_dynar_foreach(actions, cursor, action){
/* Associate this request to the action */
xbt_fifo_push(action->request_list, req);
* \brief Start the simulation of a communication request
* \param action The communication action
*/
-static XBT_INLINE void SIMIX_comm_start(smx_action_t action)
+
+XBT_INLINE void SIMIX_comm_start(smx_action_t action)
{
/* If both the sender and the receiver are already there, start the communication */
if (action->state == SIMIX_READY) {
smx_host_t sender = action->comm.src_proc->smx_host;
smx_host_t receiver = action->comm.dst_proc->smx_host;
- DEBUG3("Starting communication %p from '%s' to '%s'", action,
+ XBT_DEBUG("Starting communication %p from '%s' to '%s'", action,
SIMIX_host_get_name(sender), SIMIX_host_get_name(receiver));
action->comm.surf_comm = surf_workstation_model->extension.workstation.
/* If a link is failed, detect it immediately */
if (surf_workstation_model->action_state_get(action->comm.surf_comm) == SURF_ACTION_FAILED) {
- DEBUG2("Communication from '%s' to '%s' failed to start because of a link failure",
+ XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure",
SIMIX_host_get_name(sender), SIMIX_host_get_name(receiver));
action->state = SIMIX_LINK_FAILURE;
SIMIX_comm_destroy_internal_actions(action);
void SIMIX_comm_finish(smx_action_t action)
{
+ unsigned int destroy_count = 0;
smx_req_t req;
while ((req = xbt_fifo_shift(action->request_list))) {
return it as the result of the call */
if (req->call == REQ_COMM_WAITANY) {
SIMIX_waitany_req_remove_from_actions(req);
- req->comm_waitany.result = xbt_dynar_search(req->comm_waitany.comms, &action);
+ if (!MC_IS_ENABLED)
+ req->comm_waitany.result = xbt_dynar_search(req->comm_waitany.comms, &action);
}
/* If the action is still in a rendez-vous point then remove from it */
if (action->comm.rdv)
SIMIX_rdv_remove(action->comm.rdv, action);
- DEBUG1("SIMIX_comm_finish: action state = %d", action->state);
+ XBT_DEBUG("SIMIX_comm_finish: action state = %d", action->state);
/* Check out for errors */
switch (action->state) {
case SIMIX_DONE:
- DEBUG1("Communication %p complete!", action);
+ XBT_DEBUG("Communication %p complete!", action);
SIMIX_comm_copy_data(action);
break;
case SIMIX_LINK_FAILURE:
TRY {
- DEBUG5("Link failure in action %p between '%s' and '%s': posting an exception to the issuer: %s (%p)",
+ XBT_DEBUG("Link failure in action %p between '%s' and '%s': posting an exception to the issuer: %s (%p)",
action, action->comm.src_proc->smx_host->name, action->comm.dst_proc->smx_host->name,
req->issuer->name, req->issuer);
THROW0(network_error, 0, "Link failure");
default:
THROW_IMPOSSIBLE;
}
+
+ /* if there is an exception during a waitany or a testany, indicate the position of the failed communication */
+ if (req->issuer->doexception) {
+ if (req->call == REQ_COMM_WAITANY) {
+ req->issuer->running_ctx->exception.value = xbt_dynar_search(req->comm_waitany.comms, &action);
+ }
+ else if (req->call == REQ_COMM_TESTANY) {
+ req->issuer->running_ctx->exception.value = xbt_dynar_search(req->comm_testany.comms, &action);
+ }
+ }
+
req->issuer->waiting_action = NULL;
SIMIX_request_answer(req);
+ destroy_count++;
}
+
+ while (destroy_count-- > 0)
+ SIMIX_comm_destroy(action);
}
void SIMIX_post_comm(smx_action_t action)
else
action->state = SIMIX_DONE;
- DEBUG1("SIMIX_post_comm: action state = %d", action->state);
+ XBT_DEBUG("SIMIX_post_comm: action state = %d", action->state);
/* After this point the surf actions associated with the simix communicate
action are no longer needed, thus we delete them. */
SIMIX_rdv_remove(action->comm.rdv, action);
action->state = SIMIX_FAILED;
} else {
- surf_workstation_model->action_cancel(action->comm.surf_comm);
+ /* When running the MC there are no surf actions */
+ if(!MC_IS_ENABLED)
+ surf_workstation_model->action_cancel(action->comm.surf_comm);
}
}
}
/**
- * \brief Return the user data associated to the communication
+ * \brief Return the user data associated to the sender of the communication
* \param action The communication
* \return the user data
*/
-void* SIMIX_comm_get_data(smx_action_t action)
-{
- return action->comm.data;
-}
-
-void* SIMIX_comm_get_src_buff(smx_action_t action)
-{
- return action->comm.src_buff;
-}
-
-void* SIMIX_comm_get_dst_buff(smx_action_t action)
+void* SIMIX_comm_get_src_data(smx_action_t action)
{
- return action->comm.dst_buff;
+ return action->comm.src_data;
}
-size_t SIMIX_comm_get_src_buff_size(smx_action_t action)
+/**
+ * \brief Return the user data associated to the receiver of the communication
+ * \param action The communication
+ * \return the user data
+ */
+void* SIMIX_comm_get_dst_data(smx_action_t action)
{
- return action->comm.src_buff_size;
-}
-
-size_t SIMIX_comm_get_dst_buff_size(smx_action_t action)
-{
- size_t buff_size;
-
- if (action->comm.dst_buff_size)
- buff_size = *(action->comm.dst_buff_size);
- else
- buff_size = 0;
-
- return buff_size;
+ return action->comm.dst_data;
}
smx_process_t SIMIX_comm_get_src_proc(smx_action_t action)
*/
XBT_INLINE int SIMIX_comm_is_latency_bounded(smx_action_t action)
{
- //try to find comm on the list of finished flows
- uintptr_t key = 0;
- uintptr_t data = 0;
- xbt_dict_cursor_t cursor;
- xbt_dict_foreach(simix_global->latency_limited_dict, cursor, key, data) {
- DEBUG2("comparing key=%p with comm=%p", (void *) key, (void *) action);
- if ((void *) action == (void *) key) {
- DEBUG2("key %p found, return value latency limited value %d",
- (void *) key, (int) data);
- xbt_dict_cursor_free(&cursor);
- return (int) data;
- }
+ if (action->comm.surf_comm){
+ XBT_DEBUG("Getting latency limited for surf_action (%p)", action->comm.surf_comm);
+ action->latency_limited = surf_workstation_model->get_latency_limited(action->comm.surf_comm);
+ XBT_DEBUG("Action limited is %d", action->latency_limited);
}
-
- return surf_workstation_model->get_latency_limited(action->comm.surf_comm);
+ return action->latency_limited;
}
#endif
if (!comm->comm.src_buff || !comm->comm.dst_buff || comm->comm.copied == 1)
return;
- DEBUG6("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)",
+ XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)",
comm,
comm->comm.src_proc->smx_host->name, comm->comm.src_buff,
comm->comm.dst_proc->smx_host->name, comm->comm.dst_buff, buff_size);
