src/surf/maxmin_private.h

   1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #ifndef _SURF_MAXMIN_PRIVATE_H
   8 #define _SURF_MAXMIN_PRIVATE_H
   9
  10 #include "surf/maxmin.h"
  11 #include "xbt/swag.h"
  12 #include "xbt/mallocator.h"
  13
  14 typedef struct lmm_element {
  15   /* hookup to constraint */
  16   s_xbt_swag_hookup_t element_set_hookup;
  17   s_xbt_swag_hookup_t active_element_set_hookup;
  18
  19   lmm_constraint_t constraint;
  20   lmm_variable_t variable;
  21   double value;
  22 } s_lmm_element_t;
  23 #define make_elem_active(elem) xbt_swag_insert_at_head(elem,&(elem->constraint->active_element_set))
  24 #define make_elem_inactive(elem) xbt_swag_remove(elem,&(elem->constraint->active_element_set))
  25
  26 typedef struct lmm_constraint {
  27   /* hookup to system */
  28   s_xbt_swag_hookup_t constraint_set_hookup;
  29   s_xbt_swag_hookup_t active_constraint_set_hookup;
  30   s_xbt_swag_hookup_t modified_constraint_set_hookup;
  31   s_xbt_swag_hookup_t saturated_constraint_set_hookup;
  32
  33   s_xbt_swag_t element_set;     /* a list of lmm_element_t */
  34   s_xbt_swag_t active_element_set;      /* a list of lmm_element_t */
  35   double bound;
  36   double lambda;
  37   double new_lambda;
  38   double remaining;
  39   double usage;
  40   void *id;
  41   int id_int;
  42   int shared;
  43 } s_lmm_constraint_t;
  44
  45 typedef struct lmm_variable {
  46   /* hookup to system */
  47   s_xbt_swag_hookup_t variable_set_hookup;
  48   s_xbt_swag_hookup_t saturated_variable_set_hookup;
  49
  50   s_lmm_element_t *cnsts;
  51   int cnsts_size;
  52   int cnsts_number;
  53   double weight;
  54   double bound;
  55   double value;
  56   void *id;
  57   int id_int;
  58   unsigned visited;             /* used by lmm_update_modified_set */
  59   /* \begin{For Lagrange only} */
  60   double mu;
  61   double new_mu;
  62   double (*func_f) (struct lmm_variable * var, double x);       /* (f)    */
  63   double (*func_fp) (struct lmm_variable * var, double x);      /* (f')    */
  64   double (*func_fpi) (struct lmm_variable * var, double x);     /* (f')^{-1}    */
  65   /* \end{For Lagrange only} */
  66 } s_lmm_variable_t;
  67
  68 typedef struct lmm_system {
  69   int modified;
  70   int selective_update_active;  /* flag to update partially the system only selecting changed portions */
  71   unsigned visited_counter;     /* used by lmm_update_modified_set */
  72   s_xbt_swag_t variable_set;    /* a list of lmm_variable_t */
  73   s_xbt_swag_t constraint_set;  /* a list of lmm_constraint_t */
  74
  75   s_xbt_swag_t active_constraint_set;   /* a list of lmm_constraint_t */
  76   s_xbt_swag_t modified_constraint_set; /* a list of modified lmm_constraint_t */
  77
  78   s_xbt_swag_t saturated_variable_set;  /* a list of lmm_variable_t */
  79   s_xbt_swag_t saturated_constraint_set;        /* a list of lmm_constraint_t_t */
  80
  81   xbt_mallocator_t variable_mallocator;
  82 } s_lmm_system_t;
  83
  84 #define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
  85 #define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
  86 #define insert_constraint(sys,cnst) xbt_swag_insert(cnst,&(sys->constraint_set))
  87 #define remove_variable(sys,var) do {xbt_swag_remove(var,&(sys->variable_set));\
  88                                  xbt_swag_remove(var,&(sys->saturated_variable_set));} while(0)
  89 #define remove_constraint(sys,cnst) do {xbt_swag_remove(cnst,&(sys->constraint_set));\
  90                                         xbt_swag_remove(cnst,&(sys->saturated_constraint_set));} while(0)
  91 #define make_constraint_active(sys,cnst) xbt_swag_insert(cnst,&(sys->active_constraint_set))
  92 #define make_constraint_inactive(sys,cnst) \
  93   do { xbt_swag_remove(cnst, &sys->active_constraint_set);              \
  94     xbt_swag_remove(cnst, &sys->modified_constraint_set); } while (0)
  95
  96 static void lmm_var_free(lmm_system_t sys, lmm_variable_t var);
  97 static XBT_INLINE void lmm_cnst_free(lmm_system_t sys,
  98                                      lmm_constraint_t cnst);
  99
 100 void lmm_print(lmm_system_t sys);
 101
 102 extern double (*func_f_def) (lmm_variable_t, double);
 103 extern double (*func_fp_def) (lmm_variable_t, double);
 104 extern double (*func_fpi_def) (lmm_variable_t, double);
 105
 106 #endif                          /* _SURF_MAXMIN_PRIVATE_H */