{"title":"Time to remove the openib btl ?","description":"Open MPI devel \u30e1\u30fc\u30ea\u30f3\u30b0\u30ea\u30b9\u30c8\u3067\u3001\u300copenib\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u524a\u9664\u3059\u308b\u6642\u304c\u6765\u305f\u306e\u3067\u306f\uff1f\u300d\u3068\u3044\u3046\u8b70\u8ad6\u304c\u59cb\u307e\u3063\u3066\u3044\u307e\u3059\u3002 Open MPI\u3067Infiniband\u3092\u4f7f\u3046\u5834\u5408\u3001\u306a\u304c\u3089\u304f openibib \u3068\u3044\u3046 BTL \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u4f7f\u308f\u308c\u3066\u304d\u307e\u3057\u305f\u3002 BTL \u3068\u3044\u3046\u306e\u306f\u3001Byte Transfer Layer \u3068\u3044\u3046Open MPI\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u968e\u5c64\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u74b0\u5883\u30c6\u30b9\u30c8\u7b49\u306e\u76ee\u7684\u3067Infiniband\u306e\u4f7f\u7528\u3092\u5f37\u5236\u3057\u305f\u3044\u5834\u5408\u3001\u6b21\u306e\u3088\u3046\u306b mpiexec \u3092\u8d77\u52d5\u3059\u308c\u3070\u53ef\u80fd\u3067\u3059\uff08IB\u304c\u4f7f\u3048\u306a\u3051\u308c\u3070\u3001TCP\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\u3053\u3068\u306a\u304f\u30a8\u30e9\u30fc\u3068\u306a\u308b\uff09\u3002 $ mpiexec --mca \u2026","image_url":null,"blog_title":"\u672c\u5f53\u306f\u6016\u3044HPC & AI","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffreak-da.hatenablog.com%2Fentry%2F2018%2F04%2F20%2F122916\" title=\"Time to remove the openib btl ? - \u672c\u5f53\u306f\u6016\u3044HPC &amp; AI\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/keisukefukuda/","width":"100%","blog_url":"https://freak-da.hatenablog.com/","version":"1.0","type":"rich","author_name":"keisukefukuda","provider_name":"Hatena Blog","height":"190","provider_url":"https://hatena.blog","published":"2018-04-20 12:29:16","categories":["mpi"],"url":"https://freak-da.hatenablog.com/entry/2018/04/20/122916"}