int ompi_coll_tuned_barrier_intra_do_forced(struct ompi_communicator_t *comm,
mca_coll_base_module_t *module)
{
mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module;
mca_coll_tuned_comm_t *data = tuned_module->tuned_data;
OPAL_OUTPUT((ompi_coll_tuned_stream,
"coll:tuned:barrier_intra_do_forced selected algorithm %d",
data->user_forced[BARRIER].algorithm));
switch (data->user_forced[BARRIER].algorithm) {
case (0): return ompi_coll_tuned_barrier_intra_dec_fixed (comm, module);
case (1): return ompi_coll_tuned_barrier_intra_basic_linear (comm, module);
case (2): return ompi_coll_tuned_barrier_intra_doublering (comm, module);
case (3): return ompi_coll_tuned_barrier_intra_recursivedoubling (comm, module);
case (4): return ompi_coll_tuned_barrier_intra_bruck (comm, module);
case (5): return ompi_coll_tuned_barrier_intra_two_procs (comm, module);
case (6): return ompi_coll_tuned_barrier_intra_tree (comm, module);
default:
OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:barrier_intra_do_forced attempt to select algorithm %d when only 0-%d is valid?",
data->user_forced[BARRIER].algorithm,
ompi_coll_tuned_forced_max_algorithms[BARRIER]));
return (MPI_ERR_ARG);
} /* switch */
}
/*
* barrier_intra_dec
*
* Function: - seletects barrier algorithm to use
* Accepts: - same arguments as MPI_Barrier()
* Returns: - MPI_SUCCESS or error code (passed from the barrier implementation)
*/
int ompi_coll_tuned_barrier_intra_dec_dynamic(struct ompi_communicator_t *comm,
mca_coll_base_module_t *module)
{
mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module;
OPAL_OUTPUT((ompi_coll_tuned_stream,"ompi_coll_tuned_barrier_intra_dec_dynamic"));
/* check to see if we have some filebased rules */
if (tuned_module->com_rules[BARRIER]) {
/* we do, so calc the message size or what ever we need and use this for the evaluation */
int alg, faninout, segsize, ignoreme;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[BARRIER],
0, &faninout, &segsize, &ignoreme);
if (alg) {
/* we have found a valid choice from the file based rules for this message size */
return ompi_coll_tuned_barrier_intra_do_this (comm, module,
alg, faninout, segsize);
} /* found a method */
} /*end if any com rules to check */
if (tuned_module->user_forced[BARRIER].algorithm) {
return ompi_coll_tuned_barrier_intra_do_this(comm, module,
tuned_module->user_forced[BARRIER].algorithm,
tuned_module->user_forced[BARRIER].tree_fanout,
tuned_module->user_forced[BARRIER].segsize);
}
return ompi_coll_tuned_barrier_intra_dec_fixed (comm, module);
}
int ompi_coll_tuned_barrier_intra_do_this (struct ompi_communicator_t *comm,
mca_coll_base_module_t *module,
int algorithm, int faninout, int segsize)
{
OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:barrier_intra_do_this selected algorithm %d topo fanin/out%d", algorithm, faninout));
switch (algorithm) {
case (0): return ompi_coll_tuned_barrier_intra_dec_fixed (comm, module);
case (1): return ompi_coll_tuned_barrier_intra_basic_linear (comm, module);
case (2): return ompi_coll_tuned_barrier_intra_doublering (comm, module);
case (3): return ompi_coll_tuned_barrier_intra_recursivedoubling (comm, module);
case (4): return ompi_coll_tuned_barrier_intra_bruck (comm, module);
case (5): return ompi_coll_tuned_barrier_intra_two_procs (comm, module);
case (6): return ompi_coll_tuned_barrier_intra_tree (comm, module);
default:
OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:barrier_intra_do_this attempt to select algorithm %d when only 0-%d is valid?",
algorithm, ompi_coll_tuned_forced_max_algorithms[BARRIER]));
return (MPI_ERR_ARG);
} /* switch */
}
