{"id":4354,"date":"2013-11-03T21:09:34","date_gmt":"2013-11-03T12:09:34","guid":{"rendered":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=4354"},"modified":"2013-11-03T21:09:34","modified_gmt":"2013-11-03T12:09:34","slug":"avx2-%e3%81%ab%e3%82%88%e3%82%8b%e4%b8%a6%e5%88%97%e3%83%8f%e3%83%95%e3%83%9e%e3%83%b3%e3%83%87%e3%82%b3%e3%83%bc%e3%83%89%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=4354","title":{"rendered":"AVX2 \u306b\u3088\u308b\u4e26\u5217\u30cf\u30d5\u30de\u30f3\u30c7\u30b3\u30fc\u30c9\uff08\u305d\u306e\uff12\uff09"},"content":{"rendered":"<p>\u3061\u3087\u3063\u3068\u9ad8\u901f\u5316\u3057\u305f\u3002<\/p>\n<p><!--more--><\/p>\n<ul>\n<li>Haswell \u3067\u306f\u3001\u30ec\u30b8\u30b9\u30bf\u5e45\u304c\u540c\u3058\u306a\u3089 VGATHERDD \u3088\u308a VGATHERQQ \u306e\u65b9\u304c\u5e38\u306b\u901f\u3044\u306e\u3067\u3001\u7f6e\u304d\u63db\u3048\u3089\u308c\u308b\u3068\u3053\u308d\u306f\u7f6e\u304d\u63db\u3048\u308b\u3002<\/li>\n<li>\u7b26\u53f7\u5217\u306e\u8aad\u307f\u8fbc\u307f\u304c\u4e00\u5207\u4e0d\u8981\u306a\u5834\u5408\u306f\u6761\u4ef6\u5206\u5c90\u3067\u30b9\u30ad\u30c3\u30d7\u3059\u308b\u3088\u3046\u306b\u3057\u305f\u3002\u3053\u306e\u6761\u4ef6\u5206\u5c90\u306f\u30b8\u30e3\u30f3\u30d7\u7387 66% \u3050\u3089\u3044\u306a\u306e\u3067\u4e88\u6e2c\u306b\u5931\u6557\u3057\u305f\u6642\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306e\u65b9\u304c\u5927\u304d\u3044\u3068\u601d\u3046\u306e\u3060\u304c\u3001\u5b9f\u969b\u306b\u30de\u30b9\u30af\u64cd\u4f5c\u3067\u306f\u306a\u304f\u6761\u4ef6\u5206\u5c90\u306b\u7f6e\u304d\u63db\u3048\u305f\u3089\u901f\u304f\u306a\u3063\u305f\u3002<\/li>\n<\/ul>\n<p>\u3067\u3001\u8a08\u6e2c<\/p>\n<blockquote>\n<pre>C:\\Users\\umezawa\\Documents\\huff4>huff4 _exp.dat\r\n* NORMAL Huffman Decode x4\r\ndecode 771.519552msec\r\n       2.874134nsec\/symbol\r\nok\r\n\r\n* AVX2 Parallel Huffman Decode\r\ndecode 683.574067msec\r\n       2.546512nsec\/symbol\r\nok<\/pre>\n<\/blockquote>\n<p>11% \u307b\u3069\u901f\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3001\u4e26\u5217\u3067\u306a\u3044\u30cf\u30d5\u30de\u30f3\u30c7\u30b3\u30fc\u30c9\u306b\u4f9d\u5b58\u3057\u305f\u6700\u9069\u5316\u304c\u4f7f\u3048\u306a\u304f\u306a\u308b\u3053\u3068\u3092\u8003\u3048\u308b\u3068\u300111% \u7a0b\u5ea6\u3067\u306f\u7f6e\u304d\u63db\u3048\u3089\u308c\u307e\u305b\u3093\u3002\u3084\u3063\u3071\u308a\u304a\u8535\u5165\u308a\u3067\u3059\u3002Skylake \u5f85\u3061\u3067\u3059\u304b\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3061\u3087\u3063\u3068\u9ad8\u901f\u5316\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-4354","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\/4354","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=4354"}],"version-history":[{"count":1,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4354\/revisions"}],"predecessor-version":[{"id":4355,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4354\/revisions\/4355"}],"wp:attachment":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4354"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4354"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4354"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}