| Directory: | src/ |
|---|---|
| File: | src/xt_redist_repeat.c |
| Date: | 2024-11-08 09:02:52 |
| Exec | Total | Coverage | |
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| Lines: | 36 | 42 | 85.7% |
| Branches: | 8 | 12 | 66.7% |
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| 1 | /** | ||
| 2 | * @file xt_redist_repeat.c | ||
| 3 | * | ||
| 4 | * @copyright Copyright (C) 2016 Jörg Behrens <behrens@dkrz.de> | ||
| 5 | * Moritz Hanke <hanke@dkrz.de> | ||
| 6 | * Thomas Jahns <jahns@dkrz.de> | ||
| 7 | * | ||
| 8 | * @author Jörg Behrens <behrens@dkrz.de> | ||
| 9 | * Moritz Hanke <hanke@dkrz.de> | ||
| 10 | * Thomas Jahns <jahns@dkrz.de> | ||
| 11 | */ | ||
| 12 | /* | ||
| 13 | * Keywords: | ||
| 14 | * Maintainer: Jörg Behrens <behrens@dkrz.de> | ||
| 15 | * Moritz Hanke <hanke@dkrz.de> | ||
| 16 | * Thomas Jahns <jahns@dkrz.de> | ||
| 17 | * URL: https://dkrz-sw.gitlab-pages.dkrz.de/yaxt/ | ||
| 18 | * | ||
| 19 | * Redistribution and use in source and binary forms, with or without | ||
| 20 | * modification, are permitted provided that the following conditions are | ||
| 21 | * met: | ||
| 22 | * | ||
| 23 | * Redistributions of source code must retain the above copyright notice, | ||
| 24 | * this list of conditions and the following disclaimer. | ||
| 25 | * | ||
| 26 | * Redistributions in binary form must reproduce the above copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer in the | ||
| 28 | * documentation and/or other materials provided with the distribution. | ||
| 29 | * | ||
| 30 | * Neither the name of the DKRZ GmbH nor the names of its contributors | ||
| 31 | * may be used to endorse or promote products derived from this software | ||
| 32 | * without specific prior written permission. | ||
| 33 | * | ||
| 34 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | ||
| 35 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | ||
| 36 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | ||
| 37 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | ||
| 38 | * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| 39 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| 40 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| 41 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| 42 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| 43 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| 44 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 45 | */ | ||
| 46 | #ifdef HAVE_CONFIG_H | ||
| 47 | #include <config.h> | ||
| 48 | #endif | ||
| 49 | |||
| 50 | #include <assert.h> | ||
| 51 | #include <limits.h> | ||
| 52 | #include <stdlib.h> | ||
| 53 | |||
| 54 | #include <mpi.h> | ||
| 55 | |||
| 56 | #include "core/core.h" | ||
| 57 | #include "core/ppm_xfuncs.h" | ||
| 58 | #include "xt/xt_mpi.h" | ||
| 59 | #include "xt_mpi_internal.h" | ||
| 60 | #include "xt/xt_redist_repeat.h" | ||
| 61 | #include "xt/xt_redist_single_array_base.h" | ||
| 62 | #include "ensure_array_size.h" | ||
| 63 | #include "xt/xt_redist.h" | ||
| 64 | #include "xt_redist_internal.h" | ||
| 65 | #include "xt_config_internal.h" | ||
| 66 | |||
| 67 | |||
| 68 | |||
| 69 | static const char filename[] = "xt_redist_repeat.c"; | ||
| 70 | |||
| 71 | static void | ||
| 72 | 158 | generate_msg_infos(struct Xt_redist_msg *restrict msgs, | |
| 73 | MPI_Aint extent, const int *displacements, Xt_redist redist, | ||
| 74 | int num_repetitions, MPI_Comm comm, | ||
| 75 | enum xt_msg_direction direction) | ||
| 76 | { | ||
| 77 | 158 | int *restrict ranks = NULL; | |
| 78 | 158 | size_t num_ranks | |
| 79 | 158 | = (size_t)xt_redist_get_msg_ranks(redist, direction, &ranks); | |
| 80 |
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924 | for (size_t i = 0; i < num_ranks; ++i) { |
| 81 | MPI_Datatype datatype | ||
| 82 | 766 | = xt_redist_get_MPI_Datatype(redist, ranks[i], direction, false); | |
| 83 | MPI_Aint curr_lb, curr_extent; | ||
| 84 | MPI_Datatype datatype_with_extent; | ||
| 85 | |||
| 86 | // adjust extent of datatype to match the displacements | ||
| 87 |
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766 | xt_mpi_call(MPI_Type_get_extent(datatype, &curr_lb, &curr_extent), comm); |
| 88 |
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766 | xt_mpi_call(MPI_Type_create_resized(datatype, curr_lb, extent, |
| 89 | &datatype_with_extent), comm); | ||
| 90 | |||
| 91 | 766 | msgs[i].rank = ranks[i]; | |
| 92 | 766 | msgs[i].datatype | |
| 93 | 766 | = xt_mpi_generate_datatype(displacements, num_repetitions, | |
| 94 | datatype_with_extent, comm); | ||
| 95 | 766 | MPI_Type_free(&datatype_with_extent); | |
| 96 | } | ||
| 97 | 158 | free(ranks); | |
| 98 | 158 | } | |
| 99 | |||
| 100 | Xt_redist | ||
| 101 | ✗ | xt_redist_repeat_asym_new(Xt_redist redist, MPI_Aint src_extent, | |
| 102 | MPI_Aint dst_extent, int num_repetitions, | ||
| 103 | const int src_displacements[num_repetitions], | ||
| 104 | const int dst_displacements[num_repetitions]) | ||
| 105 | { | ||
| 106 | ✗ | return xt_redist_repeat_asym_custom_new( | |
| 107 | redist, src_extent, dst_extent, num_repetitions, | ||
| 108 | src_displacements, dst_displacements, (Xt_config)&xt_default_config); | ||
| 109 | } | ||
| 110 | |||
| 111 | Xt_redist | ||
| 112 | 79 | xt_redist_repeat_asym_custom_new(Xt_redist redist, MPI_Aint src_extent, | |
| 113 | MPI_Aint dst_extent, int num_repetitions, | ||
| 114 | const int src_displacements[num_repetitions], | ||
| 115 | const int dst_displacements[num_repetitions], | ||
| 116 | Xt_config config) | ||
| 117 | 79 | { | |
| 118 | // ensure that yaxt is initialized | ||
| 119 |
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79 | assert(xt_initialized()); |
| 120 | |||
| 121 | int tag_offset; | ||
| 122 | 79 | MPI_Comm comm | |
| 123 | 79 | = xt_mpi_comm_smart_dup(xt_redist_get_MPI_Comm(redist), &tag_offset); | |
| 124 | |||
| 125 |
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79 | if (num_repetitions < 1) |
| 126 | ✗ | Xt_abort(comm, "ERROR: invalid number of repetitions (Xt_redist_repeat)\n", | |
| 127 | filename, __LINE__); | ||
| 128 | |||
| 129 | int nmsg[2]; | ||
| 130 |
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237 | for (int i = 0; i < 2; ++i) |
| 131 | 158 | nmsg[i] = redist->vtable->get_num_msg(redist, (enum xt_msg_direction)i); | |
| 132 | 79 | size_t num_messages = (size_t)nmsg[SEND] + (size_t)nmsg[RECV]; | |
| 133 | 79 | struct Xt_redist_msg *msgs = xmalloc(sizeof (*msgs) * num_messages); | |
| 134 | |||
| 135 | 79 | generate_msg_infos(msgs, src_extent, src_displacements, | |
| 136 | redist, num_repetitions, comm, SEND); | ||
| 137 | |||
| 138 | 79 | generate_msg_infos(msgs+nmsg[0], dst_extent, dst_displacements, | |
| 139 | redist, num_repetitions, comm, RECV); | ||
| 140 | |||
| 141 | 79 | struct Xt_config_ config_ = *config; | |
| 142 | 79 | config_.flags |= exch_no_dt_dup; | |
| 143 | |||
| 144 | 79 | Xt_redist result = xt_redist_single_array_base_custom_new( | |
| 145 | 79 | nmsg[SEND], nmsg[RECV], msgs, msgs+nmsg[SEND], comm, &config_); | |
| 146 | 79 | free(msgs); | |
| 147 | 79 | xt_mpi_comm_smart_dedup(&comm, tag_offset); | |
| 148 | 79 | return result; | |
| 149 | } | ||
| 150 | |||
| 151 | ✗ | Xt_redist xt_redist_repeat_new(Xt_redist redist, MPI_Aint src_extent, | |
| 152 | MPI_Aint dst_extent, int num_repetitions, | ||
| 153 | ✗ | const int displacements[num_repetitions]) { | |
| 154 | ✗ | return xt_redist_repeat_asym_custom_new( | |
| 155 | redist, src_extent, dst_extent, num_repetitions, displacements, | ||
| 156 | displacements, (Xt_config)&xt_default_config); | ||
| 157 | } | ||
| 158 | |||
| 159 | 76 | Xt_redist xt_redist_repeat_custom_new(Xt_redist redist, MPI_Aint src_extent, | |
| 160 | MPI_Aint dst_extent, int num_repetitions, | ||
| 161 | const int displacements[num_repetitions], | ||
| 162 | Xt_config config) | ||
| 163 | 76 | { | |
| 164 | 76 | return xt_redist_repeat_asym_custom_new( | |
| 165 | redist, src_extent, dst_extent, num_repetitions, displacements, | ||
| 166 | displacements, config); | ||
| 167 | } | ||
| 168 | |||
| 169 | /* | ||
| 170 | * Local Variables: | ||
| 171 | * c-basic-offset: 2 | ||
| 172 | * coding: utf-8 | ||
| 173 | * indent-tabs-mode: nil | ||
| 174 | * show-trailing-whitespace: t | ||
| 175 | * require-trailing-newline: t | ||
| 176 | * End: | ||
| 177 | */ | ||
| 178 |