{"id":1761,"date":"2025-03-24T08:49:58","date_gmt":"2025-03-23T23:49:58","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1761"},"modified":"2025-03-24T08:49:58","modified_gmt":"2025-03-23T23:49:58","slug":"openmpi%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9ac%e3%81%a7%e3%81%ae%e4%b8%a6%e5%88%97%e5%87%a6%e7%90%86%e3%82%92%e6%9c%80%e9%81%a9%e5%8c%96%e3%81%99%e3%82%8b7%e3%81%a4","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1761","title":{"rendered":"OpenMPI\u30de\u30b9\u30bf\u30fc\u30ac\u30a4\u30c9\uff1aC++\u3067\u306e\u4e26\u5217\u51e6\u7406\u3092\u6700\u9069\u5316\u3059\u308b7\u3064\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">OpenMPI\u306e\u57fa\u790e\u3068\u4e26\u5217\u51e6\u7406\u306e\u91cd\u8981\u6027<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u4e26\u5217\u51e6\u7406\u304c\u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u306b\u6c42\u3081\u3089\u308c\u308b\u7406\u7531<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">OpenMPI\u304c\u63d0\u4f9b\u3059\u308b\u4e26\u5217\u51e6\u7406\u306e\u9769\u65b0\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">OpenMPI\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3068\u52d5\u4f5c\u539f\u7406<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u30e1\u30c3\u30bb\u30fc\u30b8\u30d1\u30c3\u30b7\u30f3\u30b0\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u4ed5\u7d44\u307f<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1\u306e\u6700\u9069\u5316\u7406\u8ad6<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">C++\u3067\u306eOpenMPI\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">\u958b\u767a\u74b0\u5883\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3068\u57fa\u672c\u8a2d\u5b9a<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">\u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u30d3\u30eb\u30c9\u8a2d\u5b9a\u306e\u6700\u9069\u5316<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">\u5b9f\u8df5\u7684\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u51e6\u7406\u306e\u5b9f\u88c5\u624b\u9806<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u53d7\u4fe1\u3092\u6700\u9069\u5316\u3059\u308b\u624b\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u975e\u540c\u671f\u901a\u4fe1\u3092\u6d3b\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u6838\u5fc3\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">\u901a\u4fe1\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u65e9\u6025\u306b\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u30e1\u30e2\u30ea\u4f7f\u7528\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-15\">\u5b9f\u969b\u306e\u73fe\u5834\u958b\u767a\u3067\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">\u5927\u898f\u6a21\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u5b9f\u88c5\u4e8b\u4f8b\u3068\u5f97\u3089\u308c\u305f\u77e5\u898b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-17\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c7\u30d0\u30c3\u30b0\u306e\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-18\">\u6b21\u4e16\u4ee3\u306e\u4e26\u5217\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u306b\u5411\u3051\u3066<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-19\">OpenMPI\u306e\u6700\u65b0\u6a5f\u80fd\u3068\u5c06\u6765\u5c55\u671b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-20\">\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u4e26\u5217\u51e6\u7406\u306e\u5b9f\u88c5\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">OpenMPI\u306e\u57fa\u790e\u3068\u4e26\u5217\u51e6\u7406\u306e\u91cd\u8981\u6027<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u4e26\u5217\u51e6\u7406\u304c\u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u306b\u6c42\u3081\u3089\u308c\u308b\u7406\u7531<\/h3>\n\n\n\n<p>\u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u4e26\u5217\u51e6\u7406\u306f\u4e0d\u53ef\u6b20\u306a\u6280\u8853\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u80cc\u666f\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u8981\u56e0\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u91cf\u306e\u7206\u767a\u7684\u5897\u52a0<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d3\u30c3\u30b0\u30c7\u30fc\u30bf\u306e\u666e\u53ca\u306b\u3088\u308a\u3001\u51e6\u7406\u3059\u3079\u304d\u30c7\u30fc\u30bf\u91cf\u304c\u5e74\u3005\u5897\u52a0<\/li>\n\n\n\n<li>\u5358\u4e00\u30d7\u30ed\u30bb\u30b9\u3067\u306e\u51e6\u7406\u3067\u306f\u6642\u9593\u7684\u5236\u7d04\u304c\u53b3\u3057\u3044<\/li>\n\n\n\n<li>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u51e6\u7406\u306e\u8981\u6c42\u304c\u9ad8\u307e\u3063\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u9032\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30de\u30eb\u30c1\u30b3\u30a2\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u4e00\u822c\u5316<\/li>\n\n\n\n<li>\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306e\u666e\u53ca<\/li>\n\n\n\n<li>\u30af\u30e9\u30a6\u30c9\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u767a\u5c55<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d3\u30b8\u30cd\u30b9\u8981\u4ef6\u306e\u5909\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u51e6\u7406\u6642\u9593\u306e\u77ed\u7e2e\u5316\u8981\u6c42<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u306e\u5fdc\u7b54\u6027\u5411\u4e0a\u306e\u5fc5\u8981\u6027<\/li>\n\n\n\n<li>\u30b3\u30b9\u30c8\u52b9\u7387\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8981\u56e0\u306b\u3088\u308a\u3001\u52b9\u7387\u7684\u306a\u4e26\u5217\u51e6\u7406\u306e\u5b9f\u88c5\u306f\u73fe\u4ee3\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u5fc5\u9808\u306e\u30b9\u30ad\u30eb\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">OpenMPI\u304c\u63d0\u4f9b\u3059\u308b\u4e26\u5217\u51e6\u7406\u306e\u9769\u65b0\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>OpenMPI\u306f\u3001\u3053\u308c\u3089\u306e\u8ab2\u984c\u306b\u5bfe\u3059\u308b\u5f37\u529b\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6a19\u6e96\u5316\u3055\u308c\u305f\u901a\u4fe1\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u57fa\u672c\u7684\u306aMPI\u901a\u4fe1\u306e\u4f8b\n   MPI_Init(&amp;argc, &amp;argv);           \/\/ MPI\u74b0\u5883\u306e\u521d\u671f\u5316\n   MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);  \/\/ \u30d7\u30ed\u30bb\u30b9\u30e9\u30f3\u30af\u306e\u53d6\u5f97\n   MPI_Comm_size(MPI_COMM_WORLD, &amp;size);  \/\/ \u7dcf\u30d7\u30ed\u30bb\u30b9\u6570\u306e\u53d6\u5f97<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u67d4\u8edf\u306a\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u901a\u4fe1<\/li>\n\n\n\n<li>\u96c6\u56e3\u901a\u4fe1\u64cd\u4f5c<\/li>\n\n\n\n<li>\u975e\u540c\u671f\u901a\u4fe1\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u975e\u4f9d\u5b58\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u4f9d\u5b58\u3057\u306a\u3044\u4e26\u5217\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\n   int data = rank * 100;\n   if (rank == 0) {\n       MPI_Send(&amp;data, 1, MPI_INT, 1, 0, MPI_COMM_WORLD);  \/\/ \u30c7\u30fc\u30bf\u9001\u4fe1\n   } else if (rank == 1) {\n       MPI_Recv(&amp;data, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);  \/\/ \u30c7\u30fc\u30bf\u53d7\u4fe1\n   }<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u5343\u30ce\u30fc\u30c9\u307e\u3067\u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u52d5\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u7ba1\u7406<\/li>\n\n\n\n<li>\u52b9\u7387\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u5229\u7528<\/li>\n<\/ul>\n\n\n\n<p>OpenMPI\u306e\u7279\u5fb4\u7684\u306a\u6a5f\u80fd\uff1a<\/p>\n\n\n<div id=\"id-aa065e74-cc55-4667-a518-907568613ed8\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a5f\u80fd<\/th><th>\u30e1\u30ea\u30c3\u30c8<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u96c6\u56e3\u901a\u4fe1<\/td><td>\u30c7\u30fc\u30bf\u306e\u52b9\u7387\u7684\u306a\u914d\u5e03\u3068\u53ce\u96c6<\/td><td>\u884c\u5217\u8a08\u7b97\u3001\u30c7\u30fc\u30bf\u5206\u6563<\/td><\/tr><tr><td>\u975e\u540c\u671f\u901a\u4fe1<\/td><td>\u901a\u4fe1\u3068\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7<\/td><td>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/td><\/tr><tr><td>\u30c8\u30dd\u30ed\u30b8\u7ba1\u7406<\/td><td>\u52b9\u7387\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u914d\u7f6e<\/td><td>\u683c\u5b50\u30d9\u30fc\u30b9\u306e\u8a08\u7b97<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u51e6\u7406<\/td><td>\u5805\u7262\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a<\/td><td>\u9577\u6642\u9593\u5b9f\u884c\u30b8\u30e7\u30d6<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001OpenMPI\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u3092\u958b\u767a\u8005\u306b\u63d0\u4f9b\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9ad8\u3044\u79fb\u690d\u6027\u3068\u4e92\u63db\u6027<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30c4\u30fc\u30eb\u3068\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30b5\u30dd\u30fc\u30c8<\/li>\n\n\n\n<li>\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b\u3088\u308b\u7d99\u7d9a\u7684\u306a\u6539\u5584<\/li>\n\n\n\n<li>\u8a73\u7d30\u306a\u6027\u80fd\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u30aa\u30d7\u30b7\u30e7\u30f3<\/li>\n<\/ul>\n\n\n\n<p>\u958b\u767a\u8005\u306f\u3001\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u4e26\u5217\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">OpenMPI\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3068\u52d5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u30e1\u30c3\u30bb\u30fc\u30b8\u30d1\u30c3\u30b7\u30f3\u30b0\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p>OpenMPI\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30d1\u30c3\u30b7\u30f3\u30b0\u6a5f\u69cb\u306f\u3001\u4ee5\u4e0b\u306e\u4e3b\u8981\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u901a\u4fe1\u30ec\u30a4\u30e4\u30fc<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u57fa\u672c\u7684\u306a\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u306e\u4f8b\n   void communicateData(int rank, int size) {\n       std::vector&lt;double&gt; data(1000);\n       if (rank == 0) {\n           \/\/ \u30c7\u30fc\u30bf\u306e\u521d\u671f\u5316\n           std::fill(data.begin(), data.end(), 1.0);\n           \/\/ \u4ed6\u306e\u30d7\u30ed\u30bb\u30b9\u3078\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\n           MPI_Send(data.data(), data.size(), MPI_DOUBLE, 1, 0, MPI_COMM_WORLD);\n       } else if (rank == 1) {\n           \/\/ \u30c7\u30fc\u30bf\u3092\u53d7\u4fe1\n           MPI_Recv(data.data(), data.size(), MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);\n       }\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d7\u30ed\u30bb\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30bb\u30b9\u306e\u8d77\u52d5\u3068\u7d42\u4e86\u306e\u5236\u5fa1<\/li>\n\n\n\n<li>\u30ea\u30bd\u30fc\u30b9\u306e\u5272\u308a\u5f53\u3066\u3068\u89e3\u653e<\/li>\n\n\n\n<li>\u30d7\u30ed\u30bb\u30b9\u9593\u306e\u540c\u671f\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u5171\u6709\u30e1\u30e2\u30ea\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u4f5c\u6210\u4f8b\n   MPI_Win win;\n   double *shared_data;\n   MPI_Win_allocate_shared(size * sizeof(double), sizeof(double),\n                          MPI_INFO_NULL, MPI_COMM_WORLD, &amp;shared_data, &amp;win);<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1\u306e\u6700\u9069\u5316\u7406\u8ad6<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u5316<\/li>\n\n\n\n<li>\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7<\/li>\n\n\n\n<li>\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u6226\u7565<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u975e\u540c\u671f\u901a\u4fe1\u3092\u4f7f\u7528\u3057\u305f\u901a\u4fe1\u3068\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u4f8b\n   void optimizedCommunication() {\n       MPI_Request request;\n       std::vector&lt;double&gt; send_buffer(1000);\n       std::vector&lt;double&gt; recv_buffer(1000);\n\n       \/\/ \u975e\u540c\u671f\u9001\u4fe1\u958b\u59cb\n       MPI_Isend(send_buffer.data(), send_buffer.size(), MPI_DOUBLE,\n                 dest, tag, MPI_COMM_WORLD, &amp;request);\n\n       \/\/ \u901a\u4fe1\u4e2d\u306b\u8a08\u7b97\u3092\u5b9f\u884c\n       performComputation();\n\n       \/\/ \u901a\u4fe1\u5b8c\u4e86\u3092\u5f85\u6a5f\n       MPI_Wait(&amp;request, MPI_STATUS_IGNORE);\n   }<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u901a\u4fe1\u30c8\u30dd\u30ed\u30b8\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<p>OpenMPI\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u901a\u4fe1\u30c8\u30dd\u30ed\u30b8\u3092\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-f99618d6-6f32-46c3-b065-10bad9f69b0c\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30c8\u30dd\u30ed\u30b8\u30bf\u30a4\u30d7<\/th><th>\u4f7f\u7528\u4f8b<\/th><th>\u6700\u9069\u5316\u624b\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u30ea\u30f3\u30b0<\/td><td>\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u51e6\u7406<\/td><td>\u8fd1\u63a5\u901a\u4fe1\u306e\u6700\u9069\u5316<\/td><\/tr><tr><td>\u30b0\u30ea\u30c3\u30c9<\/td><td>\u9818\u57df\u5206\u5272\u554f\u984c<\/td><td>2D\/3D\u901a\u4fe1\u306e\u52b9\u7387\u5316<\/td><\/tr><tr><td>\u30c4\u30ea\u30fc<\/td><td>\u96c6\u7d04\u6f14\u7b97<\/td><td>\u5bfe\u6570\u6642\u9593\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td><\/tr><tr><td>\u5b8c\u5168\u7d50\u5408<\/td><td>All-to-All\u901a\u4fe1<\/td><td>\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u6700\u9069\u5316<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6027\u80fd\u6700\u9069\u5316\u6280\u8853<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   \/\/ \u30ab\u30b9\u30bf\u30e0\u30c7\u30fc\u30bf\u578b\u306b\u3088\u308b\u901a\u4fe1\u6700\u9069\u5316\u4f8b\n   void optimizedDataTransfer() {\n       \/\/ \u4e0d\u9023\u7d9a\u30c7\u30fc\u30bf\u306e\u52b9\u7387\u7684\u306a\u8ee2\u9001\u306e\u305f\u3081\u306e\u30c7\u30fc\u30bf\u578b\u4f5c\u6210\n       MPI_Datatype vector_type;\n       MPI_Type_vector(count, block_length, stride, MPI_DOUBLE, &amp;vector_type);\n       MPI_Type_commit(&amp;vector_type);\n\n       \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u901a\u4fe1\n       MPI_Send(data, 1, vector_type, dest, tag, MPI_COMM_WORLD);\n\n       MPI_Type_free(&amp;vector_type);\n   }<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bc\u30ed\u30b3\u30d4\u30fc\u8ee2\u9001<\/li>\n\n\n\n<li>DMA\u6d3b\u7528<\/li>\n\n\n\n<li>RDMA\u5bfe\u5fdc<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u6280\u8853\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001OpenMPI\u306f\u9ad8\u52b9\u7387\u306a\u4e26\u5217\u51e6\u7406\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u6700\u9069\u5316\u306e\u9078\u629e\u306f\u4ee5\u4e0b\u306e\u8981\u56e0\u306b\u57fa\u3065\u3044\u3066\u884c\u308f\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u3068\u901a\u4fe1\u983b\u5ea6<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u3068\u7279\u6027<\/li>\n\n\n\n<li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3<\/li>\n\n\n\n<li>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u7279\u6027<\/li>\n<\/ul>\n\n\n\n<p>\u9069\u5207\u306a\u6700\u9069\u5316\u6226\u7565\u306e\u9078\u629e\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6027\u80fd\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">C++\u3067\u306eOpenMPI\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u958b\u767a\u74b0\u5883\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3068\u57fa\u672c\u8a2d\u5b9a<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u524d\u63d0\u6761\u4ef6\u306e\u78ba\u8a8d<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C++\u30b3\u30f3\u30d1\u30a4\u30e9\uff08GCC 4.8\u4ee5\u4e0a\u63a8\u5968\uff09<\/li>\n\n\n\n<li>CMake\uff083.10\u4ee5\u4e0a\uff09<\/li>\n\n\n\n<li>\u5fc5\u8981\u306a\u30b7\u30b9\u30c6\u30e0\u30e9\u30a4\u30d6\u30e9\u30ea<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>OpenMPI\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u624b\u9806<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u5404OS\u5411\u3051\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<p><strong>Ubuntu\/Debian\u7cfb<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nsudo apt-get update\nsudo apt-get install openmpi-bin openmpi-common libopenmpi-dev\n\n# \u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\nmpirun --version\nmpic++ --version<\/pre>\n\n\n\n<p><strong>CentOS\/RHEL\u7cfb<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u5fc5\u8981\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nsudo yum install openmpi openmpi-devel\nsudo alternatives --set mpi \/usr\/lib64\/openmpi\n\n# \u74b0\u5883\u5909\u6570\u306e\u8a2d\u5b9a\nexport PATH=$PATH:\/usr\/lib64\/openmpi\/bin\nexport LD_LIBRARY_PATH=$LD_LIBRARY_PATH:\/usr\/lib64\/openmpi\/lib<\/pre>\n\n\n\n<p><strong>MacOS<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># Homebrew\u3092\u4f7f\u7528\u3057\u305f\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\nbrew install open-mpi\n\n# \u30d0\u30fc\u30b8\u30e7\u30f3\u78ba\u8a8d\nmpirun --version<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u69cb\u6210<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">my_mpi_project\/\n\u251c\u2500\u2500 CMakeLists.txt\n\u251c\u2500\u2500 src\/\n\u2502   \u251c\u2500\u2500 main.cpp\n\u2502   \u2514\u2500\u2500 mpi_functions.cpp\n\u251c\u2500\u2500 include\/\n\u2502   \u2514\u2500\u2500 mpi_functions.h\n\u2514\u2500\u2500 build\/<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u30d3\u30eb\u30c9\u8a2d\u5b9a\u306e\u6700\u9069\u5316<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>CMake\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># CMakeLists.txt\ncmake_minimum_required(VERSION 3.10)\nproject(MyMPIProject CXX)\n\n# MPI \u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u691c\u51fa\nfind_package(MPI REQUIRED)\n\n# \u30b3\u30f3\u30d1\u30a4\u30e9\u30d5\u30e9\u30b0\u306e\u8a2d\u5b9a\nset(CMAKE_CXX_STANDARD 17)\nset(CMAKE_CXX_STANDARD_REQUIRED ON)\nset(CMAKE_CXX_FLAGS \"${CMAKE_CXX_FLAGS} ${MPI_CXX_COMPILE_FLAGS}\")\n\n# \u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u306e\u751f\u6210\nadd_executable(mpi_app src\/main.cpp src\/mpi_functions.cpp)\ntarget_include_directories(mpi_app PRIVATE ${MPI_CXX_INCLUDE_PATH})\ntarget_link_libraries(mpi_app ${MPI_CXX_LIBRARIES} ${MPI_CXX_LINK_FLAGS})<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30d3\u30eb\u30c9\u3068\u5b9f\u884c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u30d3\u30eb\u30c9\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u4f5c\u6210\u3068\u79fb\u52d5\nmkdir build &amp;&amp; cd build\n\n# CMake\u306e\u5b9f\u884c\u3068\u30d3\u30eb\u30c9\ncmake ..\nmake\n\n# \u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\uff084\u30d7\u30ed\u30bb\u30b9\u3067\u5b9f\u884c\u3059\u308b\u4f8b\uff09\nmpirun -np 4 .\/mpi_app<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u8a2d\u5b9a\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<p><code>.vscode\/launch.json<\/code>\u306e\u8a2d\u5b9a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">{\n    \"version\": \"0.2.0\",\n    \"configurations\": [\n        {\n            \"name\": \"MPI Debug\",\n            \"type\": \"cppdbg\",\n            \"request\": \"launch\",\n            \"program\": \"${workspaceFolder}\/build\/mpi_app\",\n            \"args\": [],\n            \"stopAtEntry\": false,\n            \"cwd\": \"${workspaceFolder}\",\n            \"environment\": [],\n            \"externalConsole\": false,\n            \"MIMode\": \"gdb\",\n            \"setupCommands\": [\n                {\n                    \"description\": \"Enable pretty-printing for gdb\",\n                    \"text\": \"-enable-pretty-printing\",\n                    \"ignoreFailures\": true\n                }\n            ]\n        }\n    ]\n}<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u6027\u80fd\u6700\u9069\u5316\u306e\u305f\u3081\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3<\/strong><\/li>\n<\/ol>\n\n\n<div id=\"id-48ed9855-b1c6-4698-a611-c283ab601d0b\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30aa\u30d7\u30b7\u30e7\u30f3<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>-O3<\/td><td>\u6700\u9ad8\u30ec\u30d9\u30eb\u306e\u6700\u9069\u5316<\/td><td>\u672c\u756a\u74b0\u5883\u5411\u3051<\/td><\/tr><tr><td>-march=native<\/td><td>CPU\u56fa\u6709\u306e\u6700\u9069\u5316<\/td><td>\u7279\u5b9a\u74b0\u5883\u5411\u3051<\/td><\/tr><tr><td>-ftree-vectorize<\/td><td>\u30d9\u30af\u30c8\u30eb\u5316\u306e\u6709\u52b9\u5316<\/td><td>SIMD\u6d3b\u7528<\/td><\/tr><tr><td>-fopenmp<\/td><td>OpenMP\u7d71\u5408<\/td><td>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u4e26\u5217\u5316<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u74b0\u5883\u69cb\u7bc9\u6642\u306e\u4e00\u822c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30f3\u30af\u30a8\u30e9\u30fc\u306e\u89e3\u6c7a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u74b0\u5883\u5909\u6570\u306e\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30e9\u30a4\u30d6\u30e9\u30ea\u30d1\u30b9\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4e92\u63db\u6027\u78ba\u8a8d<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u554f\u984c<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u5c0e\u5165<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u30ea\u30bd\u30fc\u30b9\u306e\u76e3\u8996<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u3092\u9069\u5207\u306b\u884c\u3046\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u306aOpenMPI\u958b\u767a\u74b0\u5883\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">\u5b9f\u8df5\u7684\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u51e6\u7406\u306e\u5b9f\u88c5\u624b\u9806<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u53d7\u4fe1\u3092\u6700\u9069\u5316\u3059\u308b\u624b\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u9001\u53d7\u4fe1\u30d1\u30bf\u30fc\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u57fa\u672c\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u901a\u4fe1\u306e\u5b9f\u88c5\u4f8b\n#include &lt;mpi.h&gt;\n#include &lt;vector&gt;\n#include &lt;iostream&gt;\n\nvoid optimizedPointToPoint() {\n    int rank, size;\n    MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n    MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n\n    \/\/ \u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306e\u6700\u9069\u5316\n    const int BUFFER_SIZE = 1000000;\n    std::vector&lt;double&gt; buffer(BUFFER_SIZE);\n\n    if (rank == 0) {\n        \/\/ \u9001\u4fe1\u5074\u306e\u5b9f\u88c5\n        \/\/ \u30d0\u30c3\u30d5\u30a1\u306e\u521d\u671f\u5316\n        for (int i = 0; i &lt; BUFFER_SIZE; i++) {\n            buffer[i] = i * 1.0;\n        }\n\n        \/\/ \u6700\u9069\u5316\u3055\u308c\u305f\u9001\u4fe1\n        MPI_Send(buffer.data(), BUFFER_SIZE, MPI_DOUBLE,\n                 1, 0, MPI_COMM_WORLD);\n    } else if (rank == 1) {\n        \/\/ \u53d7\u4fe1\u5074\u306e\u5b9f\u88c5\n        MPI_Status status;\n        MPI_Recv(buffer.data(), BUFFER_SIZE, MPI_DOUBLE,\n                 0, 0, MPI_COMM_WORLD, &amp;status);\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u5206\u5272\u3068\u914d\u5e03<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30c7\u30fc\u30bf\u306e\u52b9\u7387\u7684\u306a\u5206\u6563\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\nvoid distributeData(std::vector&lt;double&gt;&amp; local_data, int rank, int size) {\n    int total_size = 1000000;\n    int local_size = total_size \/ size;\n\n    \/\/ \u30eb\u30fc\u30c8\u30d7\u30ed\u30bb\u30b9\u3067\u30c7\u30fc\u30bf\u3092\u521d\u671f\u5316\n    std::vector&lt;double&gt; global_data;\n    if (rank == 0) {\n        global_data.resize(total_size);\n        for (int i = 0; i &lt; total_size; i++) {\n            global_data[i] = i * 1.0;\n        }\n    }\n\n    \/\/ \u30c7\u30fc\u30bf\u306e\u5206\u6563\n    local_data.resize(local_size);\n    MPI_Scatter(global_data.data(), local_size, MPI_DOUBLE,\n                local_data.data(), local_size, MPI_DOUBLE,\n                0, MPI_COMM_WORLD);\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u975e\u540c\u671f\u901a\u4fe1\u3092\u6d3b\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u975e\u540c\u671f\u901a\u4fe1\u306e\u57fa\u672c\u30d1\u30bf\u30fc\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u975e\u540c\u671f\u901a\u4fe1\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u4f8b\nvoid asyncCommunication() {\n    int rank, size;\n    MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n    MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n\n    const int BUFFER_SIZE = 1000000;\n    std::vector&lt;double&gt; send_buffer(BUFFER_SIZE);\n    std::vector&lt;double&gt; recv_buffer(BUFFER_SIZE);\n\n    \/\/ \u975e\u540c\u671f\u901a\u4fe1\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u30cf\u30f3\u30c9\u30eb\n    std::vector&lt;MPI_Request&gt; requests;\n    std::vector&lt;MPI_Status&gt; statuses;\n\n    \/\/ \u8907\u6570\u306e\u975e\u540c\u671f\u901a\u4fe1\u3092\u958b\u59cb\n    for (int i = 0; i &lt; size; i++) {\n        if (i != rank) {\n            MPI_Request send_req, recv_req;\n\n            \/\/ \u975e\u540c\u671f\u9001\u4fe1\n            MPI_Isend(send_buffer.data(), BUFFER_SIZE, MPI_DOUBLE,\n                      i, 0, MPI_COMM_WORLD, &amp;send_req);\n            requests.push_back(send_req);\n\n            \/\/ \u975e\u540c\u671f\u53d7\u4fe1\n            MPI_Irecv(recv_buffer.data(), BUFFER_SIZE, MPI_DOUBLE,\n                      i, 0, MPI_COMM_WORLD, &amp;recv_req);\n            requests.push_back(recv_req);\n        }\n    }\n\n    \/\/ \u901a\u4fe1\u5b8c\u4e86\u3092\u5f85\u6a5f\u3057\u306a\u304c\u3089\u4ed6\u306e\u51e6\u7406\u3092\u5b9f\u884c\u53ef\u80fd\n    performComputation();\n\n    \/\/ \u5168\u3066\u306e\u901a\u4fe1\u5b8c\u4e86\u3092\u5f85\u6a5f\n    statuses.resize(requests.size());\n    MPI_Waitall(requests.size(), requests.data(), statuses.data());\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u9ad8\u5ea6\u306a\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/strong><\/li>\n<\/ol>\n\n\n<div id=\"id-a310a924-bebd-4284-8c65-fc1af14815f7\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d1\u30bf\u30fc\u30f3<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3<\/td><td>\u8907\u6570\u306e\u975e\u540c\u671f\u901a\u4fe1\u3092\u9023\u9396<\/td><td>\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u51e6\u7406<\/td><\/tr><tr><td>All-to-All<\/td><td>MPI_Alltoall\u4f7f\u7528<\/td><td>\u884c\u5217\u8ee2\u7f6e<\/td><\/tr><tr><td>\u96c6\u56e3\u901a\u4fe1<\/td><td>MPI_Gather\/Scatter<\/td><td>\u30c7\u30fc\u30bf\u53ce\u96c6\u30fb\u914d\u5e03<\/td><\/tr><tr><td>\u30ea\u30c0\u30af\u30b7\u30e7\u30f3<\/td><td>MPI_Reduce<\/td><td>\u4e26\u5217\u8a08\u7b97\u7d50\u679c\u306e\u96c6\u7d04<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\nvoid pipelinedProcessing() {\n    int rank, size;\n    MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n    MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n\n    const int CHUNK_SIZE = 1000;\n    const int NUM_CHUNKS = 100;\n    std::vector&lt;double&gt; chunk(CHUNK_SIZE);\n\n    MPI_Request send_req, recv_req;\n    MPI_Status status;\n\n    for (int i = 0; i &lt; NUM_CHUNKS; i++) {\n        \/\/ \u30c7\u30fc\u30bf\u30c1\u30e3\u30f3\u30af\u306e\u51e6\u7406\n        processChunk(chunk);\n\n        \/\/ \u6b21\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\n        int next = (rank + 1) % size;\n        int prev = (rank - 1 + size) % size;\n\n        \/\/ \u975e\u540c\u671f\u9001\u53d7\u4fe1\u306e\u958b\u59cb\n        MPI_Isend(chunk.data(), CHUNK_SIZE, MPI_DOUBLE,\n                  next, i, MPI_COMM_WORLD, &amp;send_req);\n        MPI_Irecv(chunk.data(), CHUNK_SIZE, MPI_DOUBLE,\n                  prev, i, MPI_COMM_WORLD, &amp;recv_req);\n\n        \/\/ \u901a\u4fe1\u5b8c\u4e86\u3092\u5f85\u6a5f\n        MPI_Wait(&amp;send_req, &amp;status);\n        MPI_Wait(&amp;recv_req, &amp;status);\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u30ea\u30ab\u30d0\u30ea<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5805\u7262\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\nbool robustCommunication(std::vector&lt;double&gt;&amp; data) {\n    int rank, size;\n    MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n    MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n\n    MPI_Status status;\n    int error_code;\n\n    try {\n        error_code = MPI_Send(data.data(), data.size(), MPI_DOUBLE,\n                             (rank + 1) % size, 0, MPI_COMM_WORLD);\n        if (error_code != MPI_SUCCESS) {\n            \/\/ \u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\n            char error_string[MPI_MAX_ERROR_STRING];\n            int length;\n            MPI_Error_string(error_code, error_string, &amp;length);\n            std::cerr &lt;&lt; \"MPI error: \" &lt;&lt; error_string &lt;&lt; std::endl;\n            return false;\n        }\n        return true;\n    } catch (const std::exception&amp; e) {\n        std::cerr &lt;&lt; \"Exception: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n        return false;\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u4e26\u5217\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u6838\u5fc3\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u901a\u4fe1\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u65e9\u6025\u306b\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u52b9\u7387\u7684\u306a\u30d0\u30c3\u30d5\u30a1\u7ba1\u7406\u306e\u5b9f\u88c5\u4f8b\nclass OptimizedBuffer {\nprivate:\n    std::vector&lt;double&gt; buffer;\n    const size_t OPTIMAL_BUFFER_SIZE = 1024 * 1024; \/\/ 1MB\n    MPI_Request request;\n\npublic:\n    void send_optimized(const void* data, int count, MPI_Datatype datatype, int dest) {\n        \/\/ \u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306e\u52d5\u7684\u6700\u9069\u5316\n        size_t message_size = count * sizeof(double);\n        if (message_size &gt; OPTIMAL_BUFFER_SIZE) {\n            \/\/ \u5927\u304d\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u5206\u5272\u3057\u3066\u9001\u4fe1\n            for (size_t offset = 0; offset &lt; count; offset += OPTIMAL_BUFFER_SIZE) {\n                int chunk_size = std::min(OPTIMAL_BUFFER_SIZE, count - offset);\n                MPI_Isend(static_cast&lt;const char*&gt;(data) + offset,\n                         chunk_size, datatype, dest, 0, MPI_COMM_WORLD, &amp;request);\n                \/\/ \u4ed6\u306e\u51e6\u7406\u3092\u5b9f\u884c\u53ef\u80fd\n                MPI_Wait(&amp;request, MPI_STATUS_IGNORE);\n            }\n        } else {\n            \/\/ \u5c0f\u3055\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u76f4\u63a5\u9001\u4fe1\n            MPI_Send(data, count, datatype, dest, 0, MPI_COMM_WORLD);\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u6700\u9069\u5316\u306e\u5b9f\u88c5\u4f8b\nclass CommunicationOptimizer {\npublic:\n    \/\/ \u96c6\u5408\u901a\u4fe1\u306e\u6700\u9069\u5316\n    template&lt;typename T&gt;\n    void optimized_broadcast(std::vector&lt;T&gt;&amp; data, int root) {\n        int rank, size;\n        MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n        MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n\n        \/\/ \u30c4\u30ea\u30fc\u30d9\u30fc\u30b9\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u5b9f\u88c5\n        for (int step = 1; step &lt; size; step *= 2) {\n            if (rank &lt; step) {\n                int target = rank + step;\n                if (target &lt; size) {\n                    MPI_Send(data.data(), data.size(), MPI_DOUBLE,\n                            target, 0, MPI_COMM_WORLD);\n                }\n            } else if (rank &lt; step * 2) {\n                int source = rank - step;\n                MPI_Recv(data.data(), data.size(), MPI_DOUBLE,\n                        source, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);\n            }\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30e1\u30e2\u30ea\u4f7f\u7528\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u4f8b\nclass MemoryOptimizer {\nprivate:\n    \/\/ \u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u5236\u5fa1\n    static constexpr size_t CACHE_LINE_SIZE = 64;\n\npublic:\n    template&lt;typename T&gt;\n    static std::vector&lt;T&gt; create_aligned_buffer(size_t size) {\n        std::vector&lt;T&gt; buffer;\n        buffer.reserve(size);\n\n        \/\/ \u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u5883\u754c\u306b\u30a2\u30e9\u30a4\u30f3\n        uintptr_t address = reinterpret_cast&lt;uintptr_t&gt;(buffer.data());\n        size_t padding = (CACHE_LINE_SIZE - (address % CACHE_LINE_SIZE)) % CACHE_LINE_SIZE;\n        buffer.resize(size + padding \/ sizeof(T));\n\n        return buffer;\n    }\n\n    \/\/ \u30bc\u30ed\u30b3\u30d4\u30fc\u8ee2\u9001\u306e\u5b9f\u88c5\n    void zero_copy_transfer(const void* data, size_t size, int dest) {\n        MPI_Win win;\n\n        \/\/ \u5171\u6709\u30e1\u30e2\u30ea\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u4f5c\u6210\n        MPI_Win_create(const_cast&lt;void*&gt;(data), size, 1,\n                      MPI_INFO_NULL, MPI_COMM_WORLD, &amp;win);\n\n        \/\/ \u4e00\u65b9\u5411\u901a\u4fe1\u306e\u5b9f\u884c\n        MPI_Win_fence(0, win);\n        MPI_Put(data, size, MPI_BYTE, dest, 0, size, MPI_BYTE, win);\n        MPI_Win_fence(0, win);\n\n        MPI_Win_free(&amp;win);\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6027\u80fd\u6700\u9069\u5316\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/li>\n<\/ol>\n\n\n<div id=\"id-ec4b79c7-1002-4deb-b0da-ba83a5654210\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6700\u9069\u5316\u6280\u8853<\/th><th>\u52b9\u679c<\/th><th>\u9069\u7528\u30b7\u30ca\u30ea\u30aa<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30e2\u30ea\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/td><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u5411\u4e0a<\/td><td>\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u51e6\u7406<\/td><\/tr><tr><td>\u30bc\u30ed\u30b3\u30d4\u30fc\u8ee2\u9001<\/td><td>\u30e1\u30e2\u30ea\u30b3\u30d4\u30fc\u524a\u6e1b<\/td><td>\u30d7\u30ed\u30bb\u30b9\u9593\u901a\u4fe1<\/td><\/tr><tr><td>\u975e\u540c\u671fI\/O<\/td><td>I\/O\u5f85\u3061\u6642\u9593\u524a\u6e1b<\/td><td>\u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c<\/td><\/tr><tr><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u96c6\u7d04<\/td><td>\u901a\u4fe1\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u524a\u6e1b<\/td><td>\u5c0f\u898f\u6a21\u30e1\u30c3\u30bb\u30fc\u30b8<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306e\u5b9f\u88c5\u4f8b\nclass PerformanceMonitor {\nprivate:\n    double start_time;\n    std::string operation_name;\n\npublic:\n    PerformanceMonitor(const std::string&amp; name) \n        : operation_name(name) {\n        MPI_Barrier(MPI_COMM_WORLD);  \/\/ \u540c\u671f\u3092\u53d6\u308b\n        start_time = MPI_Wtime();\n    }\n\n    ~PerformanceMonitor() {\n        double end_time = MPI_Wtime();\n        double elapsed = end_time - start_time;\n\n        \/\/ \u7d71\u8a08\u60c5\u5831\u306e\u53ce\u96c6\n        double max_time, min_time, avg_time;\n        MPI_Reduce(&amp;elapsed, &amp;max_time, 1, MPI_DOUBLE, MPI_MAX, 0, MPI_COMM_WORLD);\n        MPI_Reduce(&amp;elapsed, &amp;min_time, 1, MPI_DOUBLE, MPI_MIN, 0, MPI_COMM_WORLD);\n        MPI_Reduce(&amp;elapsed, &amp;avg_time, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);\n\n        int rank;\n        MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n        if (rank == 0) {\n            int size;\n            MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n            avg_time \/= size;\n            std::cout &lt;&lt; operation_name &lt;&lt; \" stats (seconds):\\n\"\n                      &lt;&lt; \"  Min: \" &lt;&lt; min_time &lt;&lt; \"\\n\"\n                      &lt;&lt; \"  Max: \" &lt;&lt; max_time &lt;&lt; \"\\n\"\n                      &lt;&lt; \"  Avg: \" &lt;&lt; avg_time &lt;&lt; std::endl;\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001OpenMPI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6027\u80fd\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u5b9f\u969b\u306e\u73fe\u5834\u958b\u767a\u3067\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u5927\u898f\u6a21\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u5b9f\u88c5\u4e8b\u4f8b\u3068\u5f97\u3089\u308c\u305f\u77e5\u898b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4e8b\u4f8b<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u91d1\u878d\u7cfb\u30d0\u30c3\u30c1\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u4e26\u5217\u51e6\u7406\u6700\u9069\u5316\u4e8b\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5927\u898f\u6a21\u30c7\u30fc\u30bf\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b\nclass BatchProcessor {\nprivate:\n    static constexpr size_t CHUNK_SIZE = 1000000;\n    std::vector&lt;double&gt; data;\n    int rank, size;\n\npublic:\n    BatchProcessor() {\n        MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n        MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n    }\n\n    void process_large_dataset() {\n        \/\/ \u30c7\u30fc\u30bf\u306e\u5206\u6563\u51e6\u7406\n        std::vector&lt;double&gt; local_data(CHUNK_SIZE);\n\n        \/\/ \u5404\u30d7\u30ed\u30bb\u30b9\u3067\u4e26\u5217\u51e6\u7406\u3092\u5b9f\u884c\n        for (size_t i = rank; i &lt; total_chunks; i += size) {\n            \/\/ \u30c1\u30e3\u30f3\u30af\u5358\u4f4d\u3067\u306e\u30c7\u30fc\u30bf\u8aad\u307f\u8fbc\u307f\n            read_data_chunk(i, local_data);\n\n            \/\/ \u30c7\u30fc\u30bf\u51e6\u7406\n            process_chunk(local_data);\n\n            \/\/ \u7d50\u679c\u306e\u96c6\u7d04\n            gather_results(local_data);\n        }\n    }\n\nprivate:\n    void process_chunk(std::vector&lt;double&gt;&amp; chunk) {\n        try {\n            \/\/ \u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3092\u542b\u3080\u51e6\u7406\n            #pragma omp parallel for\n            for (size_t i = 0; i &lt; chunk.size(); ++i) {\n                chunk[i] = compute_value(chunk[i]);\n            }\n        } catch (const std::exception&amp; e) {\n            handle_error(\"Chunk processing failed\", e);\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n<div id=\"id-b96708fb-7fb6-4b8b-bd26-7f9e29bffbdc\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u6226\u7565<\/th><th>\u9069\u7528\u30b7\u30ca\u30ea\u30aa<\/th><th>\u671f\u5f85\u52b9\u679c<\/th><\/tr><\/thead><tbody><tr><td>\u30c7\u30fc\u30bf\u5206\u5272<\/td><td>\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8<\/td><td>\u51e6\u7406\u6642\u9593\u306e\u7dda\u5f62\u524a\u6e1b<\/td><\/tr><tr><td>\u52d5\u7684\u8ca0\u8377\u5206\u6563<\/td><td>\u4e0d\u5747\u4e00\u306a\u51e6\u7406\u6642\u9593<\/td><td>\u30ea\u30bd\u30fc\u30b9\u5229\u7528\u52b9\u7387\u306e\u5411\u4e0a<\/td><\/tr><tr><td>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u4e26\u5217\u5316<\/td><td>\u30de\u30eb\u30c1\u30b3\u30a2\u30b7\u30b9\u30c6\u30e0<\/td><td>CPU\u4f7f\u7528\u52b9\u7387\u306e\u6700\u5927\u5316<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u6700\u9069\u5316<\/td><td>\u30e1\u30e2\u30ea\u5236\u7d04\u74b0\u5883<\/td><td>\u30ea\u30bd\u30fc\u30b9\u4f7f\u7528\u91cf\u306e\u524a\u6e1b<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c7\u30d0\u30c3\u30b0\u306e\u65b9\u6cd5<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e00\u822c\u7684\u306a\u554f\u984c\u3068\u89e3\u6c7a\u7b56<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30c7\u30d0\u30c3\u30b0\u652f\u63f4\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u4f8b\nclass MPIDebugger {\npublic:\n    static void print_debug_info(const char* message) {\n        int rank;\n        MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n\n        char hostname[MPI_MAX_PROCESSOR_NAME];\n        int name_len;\n        MPI_Get_processor_name(hostname, &amp;name_len);\n\n        printf(\"[Rank %d on %s] %s\\n\", rank, hostname, message);\n        fflush(stdout);\n    }\n\n    static void check_mpi_error(int error_code, const char* operation) {\n        if (error_code != MPI_SUCCESS) {\n            char error_string[MPI_MAX_ERROR_STRING];\n            int length;\n            MPI_Error_string(error_code, error_string, &amp;length);\n\n            fprintf(stderr, \"MPI Error in %s: %s\\n\", operation, error_string);\n            MPI_Abort(MPI_COMM_WORLD, error_code);\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6027\u80fd\u554f\u984c\u306e\u8a3a\u65ad\u3068\u89e3\u6c7a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a3a\u65ad\u30c4\u30fc\u30eb\u306e\u5b9f\u88c5\u4f8b\nclass PerformanceAnalyzer {\nprivate:\n    struct TimingInfo {\n        double comm_time;\n        double comp_time;\n        double idle_time;\n    };\n\n    std::map&lt;std::string, TimingInfo&gt; timing_data;\n\npublic:\n    void start_measurement(const std::string&amp; section) {\n        timing_data[section].comm_time = MPI_Wtime();\n    }\n\n    void end_measurement(const std::string&amp; section) {\n        double end_time = MPI_Wtime();\n        timing_data[section].comm_time = end_time - timing_data[section].comm_time;\n\n        \/\/ \u7d50\u679c\u306e\u96c6\u7d04\u3068\u5206\u6790\n        analyze_performance(section);\n    }\n\nprivate:\n    void analyze_performance(const std::string&amp; section) {\n        TimingInfo&amp; info = timing_data[section];\n\n        \/\/ \u901a\u4fe1\/\u8a08\u7b97\u6bd4\u7387\u306e\u5206\u6790\n        double comm_comp_ratio = info.comm_time \/ info.comp_time;\n        if (comm_comp_ratio &gt; 0.5) {\n            MPIDebugger::print_debug_info(\n                \"Warning: High communication overhead detected\");\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u5b9f\u8df5\u7684\u306a\u30c7\u30d0\u30c3\u30b0\u624b\u6cd5<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u306e\u691c\u51fa<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\n  void check_memory_usage() {\n      size_t current_usage = get_current_memory_usage();\n      size_t peak_usage = get_peak_memory_usage();\n\n      if (current_usage &gt; threshold) {\n          MPIDebugger::print_debug_info(\"Memory usage exceeded threshold\");\n      }\n  }<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u691c\u51fa<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  \/\/ \u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u691c\u51fa\u306e\u5b9f\u88c5\n  void detect_deadlock() {\n      MPI_Status status;\n      if (MPI_Probe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &amp;status) \n          != MPI_SUCCESS) {\n          MPIDebugger::print_debug_info(\"Potential deadlock detected\");\n      }\n  }<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u6539\u5584<\/li>\n\n\n\n<li>\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u306e\u8abf\u6574<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u77e5\u898b\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u52b9\u7387\u7684\u306aOpenMPI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-18\">\u6b21\u4e16\u4ee3\u306e\u4e26\u5217\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u306b\u5411\u3051\u3066<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">OpenMPI\u306e\u6700\u65b0\u6a5f\u80fd\u3068\u5c06\u6765\u5c55\u671b<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6700\u65b0\u306eOpenMPI\u6a5f\u80fd\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6700\u65b0\u306eMPI\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u305f\u5b9f\u88c5\u4f8b\nclass ModernMPIFeatures {\npublic:\n    \/\/ \u975e\u540c\u671f\u96c6\u56e3\u901a\u4fe1\u306e\u5b9f\u88c5\n    template&lt;typename T&gt;\n    void async_collective_operation(std::vector&lt;T&gt;&amp; data) {\n        MPI_Request request;\n\n        \/\/ \u975e\u540c\u671fAllreduce\u64cd\u4f5c\n        MPI_Iallreduce(MPI_IN_PLACE, data.data(), data.size(),\n                       MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD, &amp;request);\n\n        \/\/ \u901a\u4fe1\u4e2d\u306b\u4ed6\u306e\u51e6\u7406\u3092\u5b9f\u884c\u53ef\u80fd\n        perform_other_tasks();\n\n        \/\/ \u5b8c\u4e86\u3092\u5f85\u6a5f\n        MPI_Wait(&amp;request, MPI_STATUS_IGNORE);\n    }\n\n    \/\/ \u8fd1\u508d\u96c6\u56e3\u901a\u4fe1\u306e\u5b9f\u88c5\n    void neighborhood_collective() {\n        MPI_Comm cart_comm;\n        int dims[3] = {2, 2, 2};\n        int periods[3] = {1, 1, 1};\n\n        \/\/ 3D \u30ab\u30fc\u30c8\u30ea\u30c3\u30b8\u30c8\u30dd\u30ed\u30b8\u30fc\u306e\u4f5c\u6210\n        MPI_Cart_create(MPI_COMM_WORLD, 3, dims, periods, 0, &amp;cart_comm);\n\n        \/\/ \u8fd1\u508d\u30c7\u30fc\u30bf\u4ea4\u63db\n        std::vector&lt;double&gt; send_buffer(100);\n        std::vector&lt;double&gt; recv_buffer(100);\n        MPI_Neighbor_alltoall(send_buffer.data(), 1, MPI_DOUBLE,\n                             recv_buffer.data(), 1, MPI_DOUBLE,\n                             cart_comm);\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5c06\u6765\u306e\u5c55\u671b<\/strong><\/li>\n<\/ol>\n\n\n<div id=\"id-3a9eddec-f9ea-4c75-87e6-bcc6cda5f912\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6280\u8853\u30c8\u30ec\u30f3\u30c9<\/th><th>\u671f\u5f85\u3055\u308c\u308b\u5f71\u97ff<\/th><th>\u6e96\u5099\u3059\u3079\u304d\u5bfe\u5fdc<\/th><\/tr><\/thead><tbody><tr><td>\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u7d71\u5408<\/td><td>\u8d85\u4e26\u5217\u51e6\u7406\u306e\u5b9f\u73fe<\/td><td>\u91cf\u5b50\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u7814\u7a76<\/td><\/tr><tr><td>\u30a8\u30c3\u30b8\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/td><td>\u5206\u6563\u51e6\u7406\u306e\u9032\u5316<\/td><td>\u30a8\u30c3\u30b8\u30ce\u30fc\u30c9\u5bfe\u5fdc<\/td><\/tr><tr><td>AI\u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30bf\u9023\u643a<\/td><td>\u51e6\u7406\u306e\u9ad8\u901f\u5316<\/td><td>GPU\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/td><\/tr><tr><td>\u30b0\u30ea\u30fc\u30f3\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/td><td>\u7701\u96fb\u529b\u5316<\/td><td>\u96fb\u529b\u52b9\u7387\u306e\u6700\u9069\u5316<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-20\">\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u4e26\u5217\u51e6\u7406\u306e\u5b9f\u88c5\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>GPU\u3068\u306e\u9023\u643a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ OpenMPI-CUDA\u9023\u643a\u306e\u5b9f\u88c5\u4f8b\nclass MPIGPUHybrid {\nprivate:\n    cudaStream_t stream;\n\npublic:\n    MPIGPUHybrid() {\n        cudaStreamCreate(&amp;stream);\n    }\n\n    ~MPIGPUHybrid() {\n        cudaStreamDestroy(stream);\n    }\n\n    void hybrid_computation(double* host_data, double* device_data, \n                          size_t size) {\n        \/\/ GPU\u3078\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\n        cudaMemcpyAsync(device_data, host_data, size * sizeof(double),\n                       cudaMemcpyHostToDevice, stream);\n\n        \/\/ GPU\u3067\u306e\u8a08\u7b97\u5b9f\u884c\n        launch_gpu_kernel(device_data, size, stream);\n\n        \/\/ \u7d50\u679c\u306e\u8ee2\u9001\u3068\u96c6\u7d04\n        cudaMemcpyAsync(host_data, device_data, size * sizeof(double),\n                       cudaMemcpyDeviceToHost, stream);\n\n        \/\/ \u30d7\u30ed\u30bb\u30b9\u9593\u3067\u7d50\u679c\u3092\u5171\u6709\n        MPI_Allreduce(MPI_IN_PLACE, host_data, size,\n                      MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u7d71\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ OpenMP-MPI \u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u5b9f\u88c5\nclass HybridParallel {\npublic:\n    void hybrid_processing(std::vector&lt;double&gt;&amp; data) {\n        int rank, size;\n        MPI_Comm_rank(MPI_COMM_WORLD, &amp;rank);\n        MPI_Comm_size(MPI_COMM_WORLD, &amp;size);\n\n        \/\/ \u30d7\u30ed\u30bb\u30b9\u3054\u3068\u306e\u30c7\u30fc\u30bf\u5206\u5272\n        size_t local_size = data.size() \/ size;\n        std::vector&lt;double&gt; local_data(local_size);\n\n        \/\/ \u30c7\u30fc\u30bf\u306e\u5206\u6563\n        MPI_Scatter(data.data(), local_size, MPI_DOUBLE,\n                   local_data.data(), local_size, MPI_DOUBLE,\n                   0, MPI_COMM_WORLD);\n\n        \/\/ OpenMP\u306b\u3088\u308b\u30b9\u30ec\u30c3\u30c9\u4e26\u5217\u51e6\u7406\n        #pragma omp parallel for\n        for (size_t i = 0; i &lt; local_size; ++i) {\n            local_data[i] = process_element(local_data[i]);\n        }\n\n        \/\/ \u7d50\u679c\u306e\u96c6\u7d04\n        MPI_Gather(local_data.data(), local_size, MPI_DOUBLE,\n                  data.data(), local_size, MPI_DOUBLE,\n                  0, MPI_COMM_WORLD);\n    }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u6b21\u4e16\u4ee3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3078\u306e\u5bfe\u5fdc<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u6b21\u4e16\u4ee3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u5bfe\u5fdc\u306e\u62bd\u8c61\u5316\u30ec\u30a4\u30e4\u30fc\nclass NextGenArchitecture {\npublic:\n    template&lt;typename ComputeUnit&gt;\n    void execute_on_device(ComputeUnit&amp; device, \n                          const std::function&lt;void()&gt;&amp; kernel) {\n        \/\/ \u30c7\u30d0\u30a4\u30b9\u56fa\u6709\u306e\u521d\u671f\u5316\n        device.initialize();\n\n        try {\n            \/\/ \u30ab\u30fc\u30cd\u30eb\u5b9f\u884c\n            kernel();\n\n            \/\/ \u7d50\u679c\u306e\u540c\u671f\n            device.synchronize();\n        } catch (const std::exception&amp; e) {\n            handle_device_error(e);\n        }\n    }\n\n    \/\/ \u30c7\u30d0\u30a4\u30b9\u9593\u901a\u4fe1\u306e\u6700\u9069\u5316\n    void optimize_communication(const std::vector&lt;int&gt;&amp; device_list) {\n        \/\/ NUMA\u5bfe\u5fdc\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\u4f5c\u6210\n        MPI_Comm device_comm;\n        MPI_Comm_split_type(MPI_COMM_WORLD, MPI_COMM_TYPE_SHARED,\n                           0, MPI_INFO_NULL, &amp;device_comm);\n\n        \/\/ \u30c7\u30d0\u30a4\u30b9\u9593\u306e\u76f4\u63a5\u901a\u4fe1\u8a2d\u5b9a\n        setup_direct_communication(device_comm);\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6b21\u4e16\u4ee3\u6280\u8853\u3068\u5b9f\u88c5\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u672a\u6765\u306e\u4e26\u5217\u51e6\u7406\u30b7\u30b9\u30c6\u30e0\u306b\u5411\u3051\u305f\u6e96\u5099\u3092\u9032\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; 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