b_p64 239 ompi/mca/coll/tuned/coll_tuned_decision_fixed.c const double b_p64 = 1.1787; b_p64 289 ompi/mca/coll/tuned/coll_tuned_decision_fixed.c } else if (communicator_size < (a_p64 * message_size + b_p64)) {