Add a new "max-min" like sharing for parallel tasks.

[simgrid.git] / src / include / surf / maxmin.h

diff --git a/src/include/surf/maxmin.h b/src/include/surf/maxmin.h
index 0a1832f..0e4db59 100644 (file)
--- a/src/include/surf/maxmin.h
+++ b/src/include/surf/maxmin.h
@@ -9,31 +9,46 @@
 #define _SURF_MAXMIN_H
 
 #include "xbt/misc.h"
+#include "portable.h" 
+
+#define MAXMIN_PRECISION 0.00001
+static XBT_INLINE void double_update(double *variable, double value) 
+{
+  *variable -= value;
+  if(*variable< MAXMIN_PRECISION) *variable = 0.0;
+}
+
+static XBT_INLINE int double_positive(double value) 
+{
+  return (value>MAXMIN_PRECISION);
+}
+
 typedef struct lmm_variable *lmm_variable_t;
 typedef struct lmm_constraint *lmm_constraint_t;
 typedef struct lmm_system *lmm_system_t;
 
-lmm_system_t lmm_system_new(void);
-void lmm_system_free(lmm_system_t sys);
+XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
+XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys);
 void lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
 
-lmm_constraint_t lmm_constraint_new(lmm_system_t sys, void *id,
+XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id,
                                    double bound_value);
 void lmm_constraint_shared(lmm_constraint_t cnst);
 
 void lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
 
-lmm_variable_t lmm_variable_new(lmm_system_t sys, void *id,
+XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id,
                                double weight_value,
                                double bound, int number_of_constraints);
 void lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
-double lmm_variable_getvalue(lmm_variable_t var);
+XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
 
-
-void lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
+XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
                lmm_variable_t var, double value);
 void lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
                    lmm_variable_t var, double value);
+void lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst,
+                       lmm_variable_t var, double value);
 
 lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys,
                                       lmm_variable_t var, int num);
@@ -52,14 +67,48 @@ void lmm_update(lmm_system_t sys, lmm_constraint_t cnst,
                lmm_variable_t var, double value);
 void lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var,
                               double bound);
-void lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var,
+
+
+XBT_PUBLIC(void) lmm_update_variable_latency(lmm_system_t sys, lmm_variable_t var,
+                                double delta);
+
+
+
+XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var,
                                double weight);
 double lmm_get_variable_weight(lmm_variable_t var);
 
-void lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst,
+XBT_PUBLIC(void) lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst,
                                 double bound);
 
 int lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst);
 
-void lmm_solve(lmm_system_t sys);
+
+XBT_PUBLIC(void) lmm_solve(lmm_system_t sys);
+
+#ifdef HAVE_SDP
+XBT_PUBLIC(void) sdp_solve(lmm_system_t sys);
+#endif /* HAVE_SDP */
+
+XBT_PUBLIC(void) lagrange_solve(lmm_system_t sys);
+XBT_PUBLIC(void) bottleneck_solve(lmm_system_t sys);
+
+/**
+ * Default functions associated to the chosen protocol. When
+ * using the lagrangian approach.
+ */
+
+XBT_PUBLIC(void) lmm_set_default_protocol_function(double (* func_f)  (lmm_variable_t var, double x),
+                                      double (* func_fp) (lmm_variable_t var, double x),
+                                      double (* func_fpi)(lmm_variable_t var, double x));
+
+double func_reno_f  (lmm_variable_t var, double x);
+double func_reno_fp (lmm_variable_t var, double x);
+double func_reno_fpi(lmm_variable_t var, double x);
+
+double func_vegas_f  (lmm_variable_t var, double x);
+double func_vegas_fp (lmm_variable_t var, double x);
+double func_vegas_fpi(lmm_variable_t var, double x);
+
+
 #endif                         /* _SURF_MAXMIN_H */