From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66571C38A24 for ; Thu, 7 May 2020 17:46:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 469602173E for ; Thu, 7 May 2020 17:46:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728126AbgEGRqe (ORCPT ); Thu, 7 May 2020 13:46:34 -0400 Received: from jabberwock.ucw.cz ([46.255.230.98]:40842 "EHLO jabberwock.ucw.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728103AbgEGRqe (ORCPT ); Thu, 7 May 2020 13:46:34 -0400 Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id AF2001C025A; Thu, 7 May 2020 19:46:32 +0200 (CEST) Date: Thu, 7 May 2020 19:46:31 +0200 From: Pavel Machek To: Javier Malave Cc: bx@narfindustries.com, linux-kernel@vger.kernel.org, ah@narfindustries.com Subject: Re: [RFC 0/9] Popcorn Linux Distributed Thread Execution Message-ID: <20200507174631.GE1216@bug> References: <0> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 2020-04-29 15:32:47, Javier Malave wrote: > This patch set adds the Popcorn Distributed Thread Execution support > to the kernel. It is based off of Linux 5.2 commit 72a20ce. We are > looking for feedback on design and implementation from the community. You may want to cc linux-api mailing list...? > Popcorn Linux is a Linux kernel-based software stack that enables > applications to execute, with a shared code base, on distributed hosts. > Popcorn allows applications to start execution on a particular host and > migrate, at run-time, to a remote host. Multi-threaded applications may > migrate any particular thread to any remote host. Sounds like a lot of fun. > Popcorn Linux implements a software-based distributed shared memory > by extending Linux's virtual memory subsystem and it enables processes > on different machines to observe a common and coherent virtual address > space. Coherency of virtual memory pages of different hosts is ensured > using a reader-replicate/writer-invalidate, page-level consistency protocol. Sounds interesting. I guess this needs very, very fast network. Do you have some performance numbers somewhere? Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html