+XBT_PUBLIC(lmm_system_t) lmm_system_new(void);
+XBT_PUBLIC(void) lmm_system_free(lmm_system_t sys);
+XBT_PUBLIC(void) lmm_variable_disable(lmm_system_t sys, lmm_variable_t var);
+
+XBT_PUBLIC(lmm_constraint_t) lmm_constraint_new(lmm_system_t sys, void *id,
+ double bound_value);
+XBT_PUBLIC(void) lmm_constraint_shared(lmm_constraint_t cnst);
+
+XBT_PUBLIC(void) lmm_constraint_free(lmm_system_t sys, lmm_constraint_t cnst);
+
+XBT_PUBLIC(lmm_variable_t) lmm_variable_new(lmm_system_t sys, void *id,
+ double weight_value,
+ double bound, int number_of_constraints);
+XBT_PUBLIC(void) lmm_variable_free(lmm_system_t sys, lmm_variable_t var);
+XBT_PUBLIC(double) lmm_variable_getvalue(lmm_variable_t var);
+
+
+XBT_PUBLIC(void) lmm_expand(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+XBT_PUBLIC(void) lmm_expand_add(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+XBT_PUBLIC(void) lmm_elem_set_value(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t var, double value);
+
+XBT_PUBLIC(lmm_constraint_t) lmm_get_cnst_from_var(lmm_system_t sys,
+ lmm_variable_t var, int num);
+XBT_PUBLIC(int) lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var);
+XBT_PUBLIC(lmm_variable_t) lmm_get_var_from_cnst(lmm_system_t sys,
+ lmm_constraint_t cnst,
+ lmm_variable_t * var);