X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/3de3abdac93bc1f1db2415d1f50c94938a298071..617075017301606a46bacd9ca7c8d1358d3db98f:/src/include/surf/maxmin.hpp diff --git a/src/include/surf/maxmin.hpp b/src/include/surf/maxmin.hpp index 68f3f40c66..525d38d4c8 100644 --- a/src/include/surf/maxmin.hpp +++ b/src/include/surf/maxmin.hpp @@ -121,293 +121,7 @@ * constraint. */ -XBT_PUBLIC_DATA(double) sg_maxmin_precision; -XBT_PUBLIC_DATA(double) sg_surf_precision; -XBT_PUBLIC_DATA(int) sg_concurrency_limit; - -static inline void double_update(double* variable, double value, double precision) -{ - // printf("Updating %g -= %g +- %g\n",*variable,value,precision); - // xbt_assert(value==0 || value>precision); - // Check that precision is higher than the machine-dependent size of the mantissa. If not, brutal rounding may - // happen, and the precision mechanism is not active... - // xbt_assert(*variable< (2< precision); -} - -static inline int double_equals(double value1, double value2, double precision) -{ - return (fabs(value1 - value2) < precision); -} - /** @{ @ingroup SURF_lmm */ -/** - * @brief Create a new Linear MaxMim system - * @param selective_update whether we should do lazy updates - */ -XBT_PUBLIC(lmm_system_t) lmm_system_new(bool selective_update); - -/** - * @brief Free an existing Linear MaxMin system - * @param sys The lmm system to free - */ -XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys); - -/** - * @brief Create a new Linear MaxMin constraint - * @param sys The system in which we add a constraint - * @param id Data associated to the constraint (e.g.: a network link) - * @param bound_value The bound value of the constraint - */ -XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void* id, double bound_value); - -/** - * @brief Share a constraint - * @param cnst The constraint to share - */ -XBT_PUBLIC(void) lmm_constraint_shared(lmm_constraint_t cnst); - -/** - * @brief Check if a constraint is shared (shared by default) - * @param cnst The constraint to share - * @return 1 if shared, 0 otherwise - */ -XBT_PUBLIC(int) lmm_constraint_sharing_policy(lmm_constraint_t cnst); - -/** - * @brief Get the usage of the constraint after the last lmm solve - * @param cnst A constraint - * @return The usage of the constraint - */ -XBT_PUBLIC(double) lmm_constraint_get_usage(lmm_constraint_t cnst); - -XBT_PUBLIC(int) lmm_constraint_get_variable_amount(lmm_constraint_t cnst); - -/** - * @brief Sets the concurrency limit for this constraint - * @param cnst A constraint - * @param concurrency_limit The concurrency limit to use for this constraint - */ -XBT_PUBLIC(void) lmm_constraint_concurrency_limit_set(lmm_constraint_t cnst, int concurrency_limit); - -/** - * @brief Gets the concurrency limit for this constraint - * @param cnst A constraint - * @return The concurrency limit used by this constraint - */ -XBT_PUBLIC(int) lmm_constraint_concurrency_limit_get(lmm_constraint_t cnst); - -/** - * @brief Reset the concurrency maximum for a given variable (we will update the maximum to reflect constraint - * evolution). - * @param cnst A constraint -*/ -XBT_PUBLIC(void) lmm_constraint_concurrency_maximum_reset(lmm_constraint_t cnst); - -/** - * @brief Get the concurrency maximum for a given variable (which reflects constraint evolution). - * @param cnst A constraint - * @return the maximum concurrency of the constraint - */ -XBT_PUBLIC(int) lmm_constraint_concurrency_maximum_get(lmm_constraint_t cnst); - -/** - * @brief Create a new Linear MaxMin variable - * @param sys The system in which we add a constaint - * @param id Data associated to the variable (e.g.: a network communication) - * @param weight_value The weight of the variable (0.0 if not used) - * @param bound The maximum value of the variable (-1.0 if no maximum value) - * @param number_of_constraints The maximum number of constraint to associate to the variable - */ -XBT_PUBLIC(lmm_variable_t) -lmm_variable_new(lmm_system_t sys, simgrid::surf::Action* id, double weight_value, double bound, - int number_of_constraints); -/** - * @brief Free a variable - * @param sys The system associated to the variable - * @param var The variable to free - */ -XBT_PUBLIC(void) lmm_variable_free(lmm_system_t sys, lmm_variable_t var); - -/** - * @brief Get the value of the variable after the last lmm solve - * @param var A variable - * @return The value of the variable - */ -XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var); - -/** - * @brief Get the maximum value of the variable (-1.0 if no maximum value) - * @param var A variable - * @return The bound of the variable - */ -XBT_PUBLIC(double) lmm_variable_getbound(lmm_variable_t var); - -/** - * @brief Set the concurrent share of the variable - * @param var A variable - * @param concurrency_share The new concurrency share - */ -XBT_PUBLIC(void) lmm_variable_concurrency_share_set(lmm_variable_t var, short int concurrency_share); - -/** - * @brief Associate a variable to a constraint with a coefficient - * @param sys A system - * @param cnst A constraint - * @param var A variable - * @param value The coefficient associated to the variable in the constraint - */ -XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst, lmm_variable_t var, double value); - -/** - * @brief Add value to the coefficient between a constraint and a variable or create one - * @param sys A system - * @param cnst A constraint - * @param var A variable - * @param value The value to add to the coefficient associated to the variable in the constraint - */ -XBT_PUBLIC(void) lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst, lmm_variable_t var, double value); - -/** - * @brief Get the numth constraint associated to the variable - * @param sys The system associated to the variable (not used) - * @param var A variable - * @param num The rank of constraint we want to get - * @return The numth constraint - */ -XBT_PUBLIC(lmm_constraint_t) lmm_get_cnst_from_var(lmm_system_t sys, lmm_variable_t var, unsigned num); - -/** - * @brief Get the weigth of the numth constraint associated to the variable - * @param sys The system associated to the variable (not used) - * @param var A variable - * @param num The rank of constraint we want to get - * @return The numth constraint - */ -XBT_PUBLIC(double) lmm_get_cnst_weight_from_var(lmm_system_t sys, lmm_variable_t var, unsigned num); - -/** - * @brief Get the number of constraint associated to a variable - * @param sys The system associated to the variable (not used) - * @param var A variable - * @return The number of constraint associated to the variable - */ -XBT_PUBLIC(int) lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var); - -/** - * @brief Get a var associated to a constraint - * @details Get the first variable of the next variable of elem if elem is not NULL - * @param sys The system associated to the variable (not used) - * @param cnst A constraint - * @param elem A element of constraint of the constraint or NULL - * @return A variable associated to a constraint - */ -XBT_PUBLIC(lmm_variable_t) lmm_get_var_from_cnst(lmm_system_t sys, lmm_constraint_t cnst, lmm_element_t* elem); - -/** - * @brief Get a var associated to a constraint - * @details Get the first variable of the next variable of elem if elem is not NULL - * @param cnst A constraint - * @param elem A element of constraint of the constraint or NULL - * @param nextelem A element of constraint of the constraint or NULL, the one after elem - * @param numelem parameter representing the number of elements to go - * - * @return A variable associated to a constraint - */ -XBT_PUBLIC(lmm_variable_t) -lmm_get_var_from_cnst_safe(lmm_system_t sys, lmm_constraint_t cnst, lmm_element_t* elem, lmm_element_t* nextelem, - int* numelem); - -/** - * @brief Get the first active constraint of a system - * @param sys A system - * @return The first active constraint - */ -XBT_PUBLIC(lmm_constraint_t) lmm_get_first_active_constraint(lmm_system_t sys); - -/** - * @brief Get the next active constraint of a constraint in a system - * @param sys A system - * @param cnst An active constraint of the system - * - * @return The next active constraint - */ -XBT_PUBLIC(lmm_constraint_t) lmm_get_next_active_constraint(lmm_system_t sys, lmm_constraint_t cnst); - -/** - * @brief Get the data associated to a constraint - * @param cnst A constraint - * @return The data associated to the constraint - */ -XBT_PUBLIC(void*) lmm_constraint_id(lmm_constraint_t cnst); - -/** - * @brief Get the data associated to a variable - * @param var A variable - * @return The data associated to the variable - */ -XBT_PUBLIC(void*) lmm_variable_id(lmm_variable_t var); - -/** - * @brief Update the value of element linking the constraint and the variable - * @param sys A system - * @param cnst A constraint - * @param var A variable - * @param value The new value - */ -XBT_PUBLIC(void) lmm_update(lmm_system_t sys, lmm_constraint_t cnst, lmm_variable_t var, double value); - -/** - * @brief Update the bound of a variable - * @param sys A system - * @param var A constraint - * @param bound The new bound - */ -XBT_PUBLIC(void) lmm_update_variable_bound(lmm_system_t sys, lmm_variable_t var, double bound); - -/** - * @brief Update the weight of a variable - * @param sys A system - * @param var A variable - * @param weight The new weight of the variable - */ -XBT_PUBLIC(void) lmm_update_variable_weight(lmm_system_t sys, lmm_variable_t var, double weight); - -/** - * @brief Get the weight of a variable - * @param var A variable - * @return The weight of the variable - */ -XBT_PUBLIC(double) lmm_get_variable_weight(lmm_variable_t var); - -/** - * @brief Update a constraint bound - * @param sys A system - * @param cnst A constraint - * @param bound The new bound of the consrtaint - */ -XBT_PUBLIC(void) lmm_update_constraint_bound(lmm_system_t sys, lmm_constraint_t cnst, double bound); - -/** - * @brief [brief description] - * @param sys A system - * @param cnst A constraint - * @return [description] - */ -XBT_PUBLIC(int) lmm_constraint_used(lmm_system_t sys, lmm_constraint_t cnst); - -/** - * @brief Print the lmm system - * @param sys The lmm system to print - */ -XBT_PUBLIC(void) lmm_print(lmm_system_t sys); /** * @brief Solve the lmm system