a_p16             236 ompi/mca/coll/tuned/coll_tuned_decision_fixed.c     const double a_p16  = 3.2118e-6; /* [1 / byte] */
a_p16             296 ompi/mca/coll/tuned/coll_tuned_decision_fixed.c     } else if (communicator_size < (a_p16 * message_size + b_p16)) {