This source file includes following definitions.
- ompi_coll_tuned_barrier_intra_check_forced_init
- ompi_coll_tuned_barrier_intra_do_this
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13 #include "ompi_config.h"
14
15 #include "mpi.h"
16 #include "opal/util/bit_ops.h"
17 #include "ompi/constants.h"
18 #include "ompi/communicator/communicator.h"
19 #include "ompi/mca/coll/coll.h"
20 #include "ompi/mca/coll/base/coll_tags.h"
21 #include "ompi/mca/pml/pml.h"
22 #include "coll_tuned.h"
23 #include "ompi/mca/coll/base/coll_base_topo.h"
24 #include "ompi/mca/coll/base/coll_base_util.h"
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26
27 static int coll_tuned_barrier_forced_algorithm = 0;
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30 static mca_base_var_enum_value_t barrier_algorithms[] = {
31 {0, "ignore"},
32 {1, "linear"},
33 {2, "double_ring"},
34 {3, "recursive_doubling"},
35 {4, "bruck"},
36 {5, "two_proc"},
37 {6, "tree"},
38 {0, NULL}
39 };
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52 int ompi_coll_tuned_barrier_intra_check_forced_init (coll_tuned_force_algorithm_mca_param_indices_t *mca_param_indices)
53 {
54 mca_base_var_enum_t *new_enum;
55 int cnt;
56
57 for( cnt = 0; NULL != barrier_algorithms[cnt].string; cnt++ );
58 ompi_coll_tuned_forced_max_algorithms[BARRIER] = cnt;
59
60 (void) mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
61 "barrier_algorithm_count",
62 "Number of barrier algorithms available",
63 MCA_BASE_VAR_TYPE_INT, NULL, 0,
64 MCA_BASE_VAR_FLAG_DEFAULT_ONLY,
65 OPAL_INFO_LVL_5,
66 MCA_BASE_VAR_SCOPE_CONSTANT,
67 &ompi_coll_tuned_forced_max_algorithms[BARRIER]);
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70 coll_tuned_barrier_forced_algorithm = 0;
71 (void) mca_base_var_enum_create("coll_tuned_barrier_algorithms", barrier_algorithms, &new_enum);
72 mca_param_indices->algorithm_param_index =
73 mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
74 "barrier_algorithm",
75 "Which barrier algorithm is used. Can be locked down to choice of: 0 ignore, 1 linear, 2 double ring, 3: recursive doubling 4: bruck, 5: two proc only, 6: tree",
76 MCA_BASE_VAR_TYPE_INT, new_enum, 0, MCA_BASE_VAR_FLAG_SETTABLE,
77 OPAL_INFO_LVL_5,
78 MCA_BASE_VAR_SCOPE_ALL,
79 &coll_tuned_barrier_forced_algorithm);
80 OBJ_RELEASE(new_enum);
81 if (mca_param_indices->algorithm_param_index < 0) {
82 return mca_param_indices->algorithm_param_index;
83 }
84
85 return (MPI_SUCCESS);
86 }
87
88 int ompi_coll_tuned_barrier_intra_do_this (struct ompi_communicator_t *comm,
89 mca_coll_base_module_t *module,
90 int algorithm, int faninout, int segsize)
91 {
92 OPAL_OUTPUT((ompi_coll_tuned_stream,
93 "coll:tuned:barrier_intra_do_this selected algorithm %d topo fanin/out%d",
94 algorithm, faninout));
95
96 switch (algorithm) {
97 case (0): return ompi_coll_tuned_barrier_intra_dec_fixed(comm, module);
98 case (1): return ompi_coll_base_barrier_intra_basic_linear(comm, module);
99 case (2): return ompi_coll_base_barrier_intra_doublering(comm, module);
100 case (3): return ompi_coll_base_barrier_intra_recursivedoubling(comm, module);
101 case (4): return ompi_coll_base_barrier_intra_bruck(comm, module);
102 case (5): return ompi_coll_base_barrier_intra_two_procs(comm, module);
103 case (6): return ompi_coll_base_barrier_intra_tree(comm, module);
104 }
105 OPAL_OUTPUT((ompi_coll_tuned_stream,"coll:tuned:barrier_intra_do_this attempt to select algorithm %d when only 0-%d is valid?",
106 algorithm, ompi_coll_tuned_forced_max_algorithms[BARRIER]));
107 return (MPI_ERR_ARG);
108 }