typedef simgrid::kernel::lmm::Variable* lmm_variable_t;
typedef simgrid::kernel::lmm::Constraint* lmm_constraint_t;
typedef simgrid::kernel::lmm::ConstraintLight* lmm_constraint_light_t;
typedef simgrid::kernel::lmm::Variable* lmm_variable_t;
typedef simgrid::kernel::lmm::Constraint* lmm_constraint_t;
typedef simgrid::kernel::lmm::ConstraintLight* lmm_constraint_light_t;