b_p16 237 ompi/mca/coll/tuned/coll_tuned_decision_fixed.c const double b_p16 = 8.7936; b_p16 296 ompi/mca/coll/tuned/coll_tuned_decision_fixed.c } else if (communicator_size < (a_p16 * message_size + b_p16)) {