static xbt_dict_t trace_list = NULL;
-// a unique RngStream structure for everyone
-// FIXME : has to be created by someone
-static RngStream common_rng_stream = NULL;
-
XBT_INLINE tmgr_history_t tmgr_history_new(void)
{
tmgr_history_t h;
tmgr_trace_t tmgr_trace_new_from_generator(const char *id,
probabilist_event_generator_t generator1,
- probabilist_event_generator_t generator2)
+ probabilist_event_generator_t generator2,
+ int is_state_trace)
{
tmgr_trace_t trace = NULL;
- unsigned int id_hash;
- RngStream rng_stream = NULL;
-
- rng_stream = RngStream_CopyStream(common_rng_stream);
- id_hash = xbt_dict_hash(id);
- RngStream_AdvanceState(rng_stream, 0, id_hash);
-
+
trace = xbt_new0(s_tmgr_trace_t, 1);
trace->type = e_trace_probabilist;
-
+
trace->s_probabilist.event_generator[0] = generator1;
- trace->s_probabilist.event_generator[0]->rng_stream = rng_stream;
- tmgr_event_generator_next_value(trace->s_probabilist.event_generator[0]);
-
+
//FIXME : may also be a parameter
trace->s_probabilist.next_event = 0;
-
- if(generator2 == NULL) {
- trace->s_probabilist.event_generator[0] = generator1;
- } else {
+ trace->s_probabilist.is_state_trace = is_state_trace;
+
+ if(generator2 != NULL) {
trace->s_probabilist.event_generator[1] = generator2;
- trace->s_probabilist.event_generator[1]->rng_stream = rng_stream;
- tmgr_event_generator_next_value(trace->s_probabilist.event_generator[1]);
+ } else if(is_state_trace) {
+ trace->s_probabilist.event_generator[1] = generator1;
+ } else {
+ THROW_IMPOSSIBLE; //That case should have been checked before, anyway...
}
-
+
return trace;
}
-probabilist_event_generator_t tmgr_event_generator_new_uniform(double alpha,
- double beta)
-{
+probabilist_event_generator_t tmgr_event_generator_new_uniform(const char* id,
+ double min,
+ double max)
+{
probabilist_event_generator_t event_generator = NULL;
-
+ RngStream rng_stream = NULL;
+
+ rng_stream = sg_platf_rng_stream_get(id);
+
event_generator = xbt_new0(s_probabilist_event_generator_t, 1);
event_generator->type = e_generator_uniform;
- event_generator->s_uniform_parameters.alpha = alpha;
- event_generator->s_uniform_parameters.beta = beta;
+ event_generator->s_uniform_parameters.min = min;
+ event_generator->s_uniform_parameters.max = max;
+ event_generator->rng_stream = rng_stream;
tmgr_event_generator_next_value(event_generator);
-
+
return event_generator;
}
-probabilist_event_generator_t tmgr_event_generator_new_exponential(double lambda)
-{
+probabilist_event_generator_t tmgr_event_generator_new_exponential(const char* id,
+ double rate)
+{
probabilist_event_generator_t event_generator = NULL;
-
+ RngStream rng_stream = NULL;
+
+ rng_stream = sg_platf_rng_stream_get(id);
+
event_generator = xbt_new0(s_probabilist_event_generator_t, 1);
event_generator->type = e_generator_exponential;
- event_generator->s_exponential_parameters.lambda = lambda;
+ event_generator->s_exponential_parameters.rate = rate;
+ event_generator->rng_stream = rng_stream;
+
+ tmgr_event_generator_next_value(event_generator);
return event_generator;
}
-probabilist_event_generator_t tmgr_event_generator_new_weibull(double lambda,
- double k)
-{
+probabilist_event_generator_t tmgr_event_generator_new_weibull(const char* id,
+ double scale,
+ double shape)
+{
probabilist_event_generator_t event_generator = NULL;
-
+ RngStream rng_stream = NULL;
+
+ rng_stream = sg_platf_rng_stream_get(id);
+
event_generator = xbt_new0(s_probabilist_event_generator_t, 1);
event_generator->type = e_generator_weibull;
- event_generator->s_weibull_parameters.lambda = lambda;
- event_generator->s_weibull_parameters.k = k;
+ event_generator->s_weibull_parameters.scale = scale;
+ event_generator->s_weibull_parameters.shape = shape;
+ event_generator->rng_stream = rng_stream;
tmgr_event_generator_next_value(event_generator);
-
+
return event_generator;
}
double tmgr_event_generator_next_value(probabilist_event_generator_t generator)
{
-
+
switch(generator->type) {
case e_generator_uniform:
generator->next_value = (RngStream_RandU01(generator->rng_stream)
- * (generator->s_uniform_parameters.beta - generator->s_uniform_parameters.alpha))
- + generator->s_uniform_parameters.alpha;
+ * (generator->s_uniform_parameters.max - generator->s_uniform_parameters.min))
+ + generator->s_uniform_parameters.min;
break;
case e_generator_exponential:
generator->next_value = -log(RngStream_RandU01(generator->rng_stream))
- / generator->s_exponential_parameters.lambda;
+ / generator->s_exponential_parameters.rate;
break;
case e_generator_weibull:
- generator->next_value = - generator->s_weibull_parameters.lambda
- * pow( log(RngStream_RandU01(generator->rng_stream)),
- 1.0 / generator->s_weibull_parameters.k );
+ generator->next_value = generator->s_weibull_parameters.scale
+ * pow( -log(RngStream_RandU01(generator->rng_stream)),
+ 1.0 / generator->s_weibull_parameters.shape );
}
-
+
return generator->next_value;
}
{
if (!trace)
return;
-
+
switch(trace->type) {
case e_trace_list:
xbt_dynar_free(&(trace->s_list.event_list));
xbt_assert((trace_event->idx < xbt_dynar_length(trace->s_list.event_list)),
"You're referring to an event that does not exist!");
}
-
+
xbt_heap_push(h->heap, trace_event, start_time);
return trace_event;
tmgr_trace_event_t trace_event = NULL;
tmgr_event_t event = NULL;
tmgr_trace_t trace = NULL;
+ double event_delta;
if (event_date > date)
return NULL;
return NULL;
trace = trace_event->trace;
-
+ *model = trace_event->model;
+
switch(trace->type) {
case e_trace_list:
-
+
event = xbt_dynar_get_ptr(trace->s_list.event_list, trace_event->idx);
*value = event->value;
- *model = trace_event->model;
if (trace_event->idx < xbt_dynar_length(trace->s_list.event_list) - 1) {
xbt_heap_push(h->heap, trace_event, event_date + event->delta);
trace_event->free_me = 1;
}
break;
-
+
case e_trace_probabilist:
- THROW_UNIMPLEMENTED;
+
+ //FIXME : not tested yet
+ if(trace->s_probabilist.is_state_trace) {
+ *value = (double) trace->s_probabilist.next_event;
+ if(trace->s_probabilist.next_event == 0) {
+ event_delta = tmgr_event_generator_next_value(trace->s_probabilist.event_generator[0]);
+ trace->s_probabilist.next_event = 1;
+ } else {
+ event_delta = tmgr_event_generator_next_value(trace->s_probabilist.event_generator[1]);
+ trace->s_probabilist.next_event = 0;
+ }
+ } else {
+ event_delta = tmgr_event_generator_next_value(trace->s_probabilist.event_generator[0]);
+ *value = tmgr_event_generator_next_value(trace->s_probabilist.event_generator[1]);
+ }
+ xbt_heap_push(h->heap, trace_event, event_date + event_delta);
+ XBT_DEBUG("Generating a new event, with value %f", *value);
+ XBT_DEBUG("Event date: %f", event_date + event_delta);
+
break;
}
