From: jbrv <jean-baptiste.herve@esial.net>
Date: Wed, 20 Jun 2012 10:07:01 +0000 (+0200)
Subject: Probabilist trace generator : variable names changed
X-Git-Tag: v3_8~563^2
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/0cc9bc7a3d25dec9a4a268d07f808b11ac5c4b7c?ds=sidebyside

Probabilist trace generator : variable names changed

Add some semantic in the variable names, to better understand their utility.
---

diff --git a/include/simgrid/platf.h b/include/simgrid/platf.h
index ac093a2fc8..ec41a07272 100644
--- a/include/simgrid/platf.h
+++ b/include/simgrid/platf.h
@@ -30,11 +30,11 @@ XBT_PUBLIC(tmgr_trace_t) tmgr_trace_new_from_generator(const char *id,
                                                   probabilist_event_generator_t generator1,
                                                   probabilist_event_generator_t generator2);
                                           
-XBT_PUBLIC(probabilist_event_generator_t) tmgr_event_generator_new_uniform(double alpha,
-                                                                           double beta);
-XBT_PUBLIC(probabilist_event_generator_t) tmgr_event_generator_new_exponential(double lambda);
-XBT_PUBLIC(probabilist_event_generator_t) tmgr_event_generator_new_weibull(double lambda,
-                                                                           double k);
+XBT_PUBLIC(probabilist_event_generator_t) tmgr_event_generator_new_uniform(double min,
+                                                                           double max);
+XBT_PUBLIC(probabilist_event_generator_t) tmgr_event_generator_new_exponential(double rate);
+XBT_PUBLIC(probabilist_event_generator_t) tmgr_event_generator_new_weibull(double scale,
+                                                                           double shape);
 
 /** Defines whether a given resource is working or not */
 typedef enum {
diff --git a/src/surf/trace_mgr.c b/src/surf/trace_mgr.c
index b3db0851e1..d9faf6e8d8 100644
--- a/src/surf/trace_mgr.c
+++ b/src/surf/trace_mgr.c
@@ -64,41 +64,41 @@ tmgr_trace_t tmgr_trace_new_from_generator(const char *id,
   return trace;
 }
 
-probabilist_event_generator_t tmgr_event_generator_new_uniform(double alpha,
-                                                               double beta)
+probabilist_event_generator_t tmgr_event_generator_new_uniform(double min,
+                                                               double max)
 {  
   probabilist_event_generator_t event_generator = NULL;
   
   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;
 
   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(double rate)
 {  
   probabilist_event_generator_t event_generator = NULL;
   
   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;
 
   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(double scale,
+                                                               double shape)
 {  
   probabilist_event_generator_t event_generator = NULL;
   
   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;
 
   tmgr_event_generator_next_value(event_generator);
   
@@ -111,17 +111,17 @@ 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
+      generator->next_value = - generator->s_weibull_parameters.scale
                               * pow( log(RngStream_RandU01(generator->rng_stream)),
-                                    1.0 / generator->s_weibull_parameters.k );
+                                    1.0 / generator->s_weibull_parameters.shape );
   }
   
   return generator->next_value;
diff --git a/src/surf/trace_mgr_private.h b/src/surf/trace_mgr_private.h
index 65d1bb77d8..d5b43de3e3 100644
--- a/src/surf/trace_mgr_private.h
+++ b/src/surf/trace_mgr_private.h
@@ -31,15 +31,15 @@ typedef struct probabilist_event_generator {
   double next_value;
   union {
     struct {
-      double alpha;
-      double beta;
+      double min;
+      double max;
     } s_uniform_parameters;
     struct {
-      double lambda;
+      double rate;
     } s_exponential_parameters;
     struct {
-      double lambda;
-      double k;
+      double scale;
+      double shape;
     } s_weibull_parameters;
   };
 } s_probabilist_event_generator_t;