November 2015
Intermediate to advanced
360 pages
6h 16m
Japanese
Content preview from ハイパフォーマンスPython
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
10章クラスタとジョブキュー
本章を読めば以下の問いに答えられるようになる
- なぜクラスタが便利なのか？
- クラスタリングのコストは何か？
multiprocessingによる解法をクラスタ対応させるにはどうすればよいか？- IPythonのクラスタ機能はどのように動作するか？
- NSQを使うとどのように堅牢な実用システムを組めるか？
一般に「クラスタ」は、複数の計算機をまとめて1つの共通タスクを解くものと理解されています。外部からは、巨大な単一システムとして見えます。
1990年代に、ごくふつうのPCをLAN上でまとめてクラスタ化するという、いわゆるベオウルフ型クラスタ（https://ja.wikipedia.org/wiki/Beowulf）が普及してきました。その後、Googleの基盤（https://en.wikipedia.org/wiki/Google_platform）が、特にMapReduceの処理をするために、自社のデータセンタでPCクラスタを使い、実施に拍車がかかりました。成長の結果、TOP500プロジェクト（https://ja.wikipedia.org/wiki/TOP500）のランキングによれば、もっとも強力なコンピュータはクラスタ構成をしていて、すべてLinuxを使う高速なマシンを採用しています。
Amazon Webサービス（AWS）は、クラウド上で実用クラスタを運用するのにも、機械学習などの短期間のタスク用にその都度クラスタを構成するのにも、よく使われています。AWSを用いると、8コアのIntel Xeonプロセッサと60GBのRAMを、1時間1.68ドルで借りることができます。さらに、244GBのRAMや、GPUつきのマシンを使うこともできます。AWS上で重い計算タスクをアドホックなクラスタを使って処理したい場合は、 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.