c31a5ad4b3
(1) As pointed out by Torsten after Jeff comment that there are 15 collectives yesterday.. nope.. I have 16 but
miss counted them in my ifdefs (I had two #11s). Replaces with enum...
(2) Added a readonly MCA param for how many backend algorithms are available per collective (used by benchmarker/STS)
This allowed me to remove the tuned query internal functions and replace them with ompi_coll_tuned_forced_max_algorithms[COLL].
(3) I was reading the user forced MCA params for the collectives on each comm create (module init) but I then put the
values into a global set of variables (like ompi_coll_tuned_reduce_forced_algorithm).
To fix this and make the code neater:
(a) The component looks up the MCA param indices on Open if dynamic_rules is set via the
ompi_coll_tuned_COLLECTIVE_intra_check_forced_init () call.
(b) Got rid of the ompi_coll_ompi_coll_tuned_COLLECTIVE_forced_algorithm/segmentsize/etc globals with a struct that
is now cached on the module data hung off the communicator. i.e. done right.
(c) On module init if dynamic rules enabled we call a general getvalues routine (in coll_tuned_forced.c) to get the
CURRENT values using the MCA param indices and then put them on the modules data segment.
A shorter version of getvalues exists for barrier which only needs the algorithm choice
This commit was SVN r9663.
66 строки
2.5 KiB
C
66 строки
2.5 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "mpi.h"
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#include "opal/mca/mca.h"
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#include "ompi/mca/coll/coll.h"
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#include "ompi/request/request.h"
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#include "ompi/constants.h"
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#include "ompi/datatype/datatype.h"
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#include "ompi/communicator/communicator.h"
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#include "coll_tuned.h"
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/* need to include our own topo prototypes so we can malloc data on the comm correctly */
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#include "coll_tuned_topo.h"
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/* also need the dynamic rule structures */
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#include "coll_tuned_forced.h"
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#include "coll_tuned_util.h"
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#include <stdlib.h>
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#include <stdio.h>
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/* We put all routines that handle the MCA user forced algorithm and parameter choices here */
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/* recheck the setting of forced, called on module create (i.e. for each new comm) */
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int ompi_coll_tuned_forced_getvalues (coll_tuned_force_algorithm_mca_param_indices_t mca_params,
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coll_tuned_force_algorithm_params_t *forced_values)
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{
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mca_base_param_lookup_int (mca_params.algorithm_param_index, &(forced_values->algorithm));
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mca_base_param_lookup_int (mca_params.segsize_param_index, &(forced_values->segsize));
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mca_base_param_lookup_int (mca_params.tree_fanout_param_index, &(forced_values->tree_fanout));
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mca_base_param_lookup_int (mca_params.chain_fanout_param_index, &(forced_values->chain_fanout));
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return (MPI_SUCCESS);
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}
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/* special version of above just for barrier which only has one option available (at the moment...) */
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int ompi_coll_tuned_forced_getvalues_barrier (coll_tuned_force_algorithm_mca_param_indices_t mca_params,
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coll_tuned_force_algorithm_params_t *forced_values)
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{
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mca_base_param_lookup_int (mca_params.algorithm_param_index, &(forced_values->algorithm));
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return (MPI_SUCCESS);
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}
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