{"id":4280,"date":"2013-09-23T18:37:39","date_gmt":"2013-09-23T09:37:39","guid":{"rendered":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=4280"},"modified":"2013-09-23T18:37:55","modified_gmt":"2013-09-23T09:37:55","slug":"vgather%e7%b3%bb%e5%91%bd%e4%bb%a4%e3%81%ae%e9%80%9f%e3%81%95%e3%81%82%e3%82%8b%e3%81%84%e3%81%af%e9%81%85%e3%81%95%ef%bc%88%e3%81%9d%e3%81%ae%ef%bc%92%ef%bc%89","status":"publish","type":"post","link":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=4280","title":{"rendered":"VGATHER\u7cfb\u547d\u4ee4\u306e\u901f\u3055\u3042\u308b\u3044\u306f\u9045\u3055\uff08\u305d\u306e\uff12\uff09"},"content":{"rendered":"<p>\u5b9f\u969b\u306b VGATHER \u7cfb\u547d\u4ee4\u3068VGATHER\u3068\u7b49\u4fa1\u306a\u3053\u3068\u3092\u8981\u7d20\u3054\u3068\u306b\u30d0\u30e9\u3057\u3066\u884c\u3046\u30b3\u30fc\u30c9\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u53d6\u3063\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p><!--more--><\/p>\n<p><a href=\"http:\/\/umezawa.dyndns.info\/archive\/instbench\/vgatherbench.zip\">\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3053\u3061\u3089<\/a><\/p>\n<p>\u8a08\u6e2c\u6761\u4ef6\u306f\u3001\u30c7\u30fc\u30bf\u306f\u5168\u30661\u6b21\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4e57\u3063\u3066\u304a\u308a\u3001\u5168\u3066\u306e\u8981\u7d20\u3092\u30a2\u30af\u30bb\u30b9\u3059\u308b\uff08\u30de\u30b9\u30af\u30ec\u30b8\u30b9\u30bf\u306f\u5b9f\u8cea\u4f7f\u308f\u308c\u306a\u3044\uff09\u3001\u3067\u3059\u3002\u306a\u304a\u3001\u30de\u30b9\u30af\u306b\u3088\u308b\u6027\u80fd\u306e\u5909\u5316\u3092\u898b\u308b\u305f\u3081\u306b\u30011\u3064\u3060\u3051\u30de\u30b9\u30af\u3092\u4f7f\u3063\u305f\u30b1\u30fc\u30b9\u3082\u8a08\u6e2c\u3057\u307e\u3059\u3002<\/p>\n<p>VGATHER \u7cfb\u547d\u4ee4\u306f\u30de\u30b9\u30af\u30ec\u30b8\u30b9\u30bf\u304c\u30af\u30ea\u30a2\u3055\u308c\u308b\u3068\u304b\u30c7\u30b9\u30c6\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3\u30ec\u30b8\u30b9\u30bf\u3068\u30d9\u30af\u30bf\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30ec\u30b8\u30b9\u30bf\u306b\u540c\u3058\u3082\u306e\u3092\u6307\u5b9a\u3067\u304d\u306a\u3044\u3068\u304b\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u53d6\u308b\u306b\u306f\u554f\u984c\u3068\u306a\u308b\u4ed5\u69d8\u304c\u3042\u308a\u3001\u305d\u306e\u4ed5\u69d8\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u4f59\u8a08\u306a\u547d\u4ee4\u304c\u631f\u307e\u3063\u3066\u3044\u308b\u305b\u3044\u3067\u8a08\u6e2c\u306b\u7d50\u69cb\u306a\uff081\u30af\u30ed\u30c3\u30af\u3050\u3089\u3044\uff1f\uff09\u8aa4\u5dee\u304c\u3042\u308b\u3082\u306e\u3068\u601d\u308f\u308c\u307e\u3059\uff08\u7279\u306b\u30ec\u30a4\u30c6\u30f3\u30b7\uff09\u3002<\/p>\n<p>\u3067\u306f\u7d50\u679c\u3002\u3044\u3064\u3082\u901a\u308a\u524d\u304c\u30ec\u30a4\u30c6\u30f3\u30b7\u3067\u5f8c\u308d\u304c\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u9006\u6570\u3067\u3059\u3002\u8981\u7d20\u3054\u3068\u306b\u30d0\u30e9\u3057\u305f\u5974\u306f\u6570\u5341\u547d\u4ee4\u304b\u3089\u69cb\u6210\u3055\u308c\u3066\u3044\u3066\u3001\u3061\u3083\u3093\u3068\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u6e2c\u308b\u306e\u304c\u5927\u5909\uff08or\u9762\u5012\uff09\u306a\u306e\u3067\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u3060\u3051\u3067\u3059\u3002<\/p>\n<table border=\"border\">\n<tr>\n<td>VPGATHERDD (xmm)<\/td>\n<td>14-9<\/td>\n<\/tr>\n<tr>\n<td>VPGATHERDD (ymm)<\/td>\n<td>19-12<\/td>\n<\/tr>\n<tr>\n<td>VPGATHERDD (ymm) \u534a\u5206<\/td>\n<td>19-12<\/td>\n<\/tr>\n<tr>\n<td>VPGATHERQQ (xmm)<\/td>\n<td>12-7<\/td>\n<\/tr>\n<tr>\n<td>VPGATHERQQ (ymm)<\/td>\n<td>17-9<\/td>\n<\/tr>\n<tr>\n<td>\u8981\u7d20\u3054\u3068\u306b\u30d0\u30e9\u3057\u3066DWORD\u30ed\u30fc\u30c9 (xmm)<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>\u8981\u7d20\u3054\u3068\u306b\u30d0\u30e9\u3057\u3066DWORD\u30ed\u30fc\u30c9 (ymm)<\/td>\n<td>33<\/td>\n<\/tr>\n<\/table>\n<p>\u203b \u534a\u5206 \u3068\u3044\u3046\u306e\u306f\u3001\u30de\u30b9\u30af\u30ec\u30b8\u30b9\u30bf\u3092\u4f7f\u3063\u30668\u8981\u7d20\u306e\u3046\u30614\u8981\u7d20\u3060\u3051\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3088\u3046\u306b\u3057\u305f\u3082\u306e\u3002<\/p>\n<p>\u5225\u306b VGATHER \u9045\u304f\u306a\u3044\u3058\u3083\u3093\u3002\u5c11\u306a\u304f\u3068\u3082\u30014\u8981\u7d20\u306e\u6642\u70b9\u3067\u8981\u7d20\u3054\u3068\u306b\u30d0\u30e9\u3059\u3088\u308a VGATHER \u3057\u305f\u65b9\u304c\u901f\u3044\u3002\u3042\u3068\u3001\u3053\u3053\u3067\u6ce8\u76ee\u3059\u3079\u304d\u306f\u3001\u30de\u30b9\u30af\u30ec\u30b8\u30b9\u30bf\u306b\u3088\u3063\u3066\u30a2\u30af\u30bb\u30b9\u3059\u308b\u8981\u7d20\u3092\u6e1b\u3089\u3057\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u30ec\u30a4\u30c6\u30f3\u30b7\u3082\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3082\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u3068\u3044\u3046\u70b9\u3067\u3001\u30bd\u30fc\u30b9\u30ec\u30b8\u30b9\u30bf\u306e\u5185\u5bb9\u306b\u3088\u308b\u6700\u9069\u5316\u306f\u4e00\u5207\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u304c\u3046\u304b\u304c\u3048\u307e\u3059\u3002\u3055\u3059\u304c\u306b\u3053\u308c\u306f\u6b21\u3067\u6539\u5584\u3055\u308c\u308b\u3067\u3057\u3087\u3046\u3002\u305b\u3081\u3066\u30de\u30b9\u30af\u306b\u3088\u308b\u6700\u9069\u5316\u3050\u3089\u3044\u306f\u5b9f\u88c5\u3057\u3066\u307b\u3057\u3044\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001Haswell \u3067\u306f1\u6b21\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30ed\u30fc\u30c9\u30ec\u30a4\u30c6\u30f3\u30b7\u306f4\u30af\u30ed\u30c3\u30af\u3067\u30ed\u30fc\u30c9\u306f\u540c\u6642\u306b2\u3064\u767a\u884c\u3067\u304d\u308b\uff08\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u9006\u6570\u304c0.5\u306b\u306a\u308b\uff09\u305f\u3081\u30018\u8981\u7d20\u30ed\u30fc\u30c9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u4e0b\u9650\u304c7\u3067\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u9006\u6570\u306e\u4e0b\u9650\u306f4\u3068\u306a\u308a\u307e\u3059\u3002IDF \u306e\u767a\u8868\u3067\u306f\u300c<strong>Relatively<\/strong> high latency and low throughput on Haswell\u300d\u3060\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u624b\u3067\u66f8\u304f\u3088\u308a\u306f\u901f\u3044\u3051\u3069\u3042\u307e\u308a\u671f\u5f85\u3057\u3059\u304e\u306a\u3044\u3067\u306d\u3001\u3068\u3044\u3046\u30cb\u30e5\u30a2\u30f3\u30b9\u306a\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001<a href=\"http:\/\/d.hatena.ne.jp\/w_o\/20130602\">w_o\u3055\u3093\u306e\u7d50\u679c<\/a>\u3068\u5168\u7136\u9055\u3046\u3093\u3067\u3059\u304c\u3053\u308c\u306f\u4e00\u4f53\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9f\u969b\u306b VGATHER \u7cfb\u547d\u4ee4\u3068VGATHER\u3068\u7b49\u4fa1\u306a\u3053\u3068\u3092\u8981\u7d20\u3054\u3068\u306b\u30d0\u30e9\u3057\u3066\u884c\u3046\u30b3\u30fc\u30c9\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u53d6\u3063\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-4280","post","type-post","status-publish","format-standard","hentry","category-technology"],"_links":{"self":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4280"}],"version-history":[{"count":6,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4280\/revisions"}],"predecessor-version":[{"id":4286,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4280\/revisions\/4286"}],"wp:attachment":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4280"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}