linux-kernel - Re: [RFC 0/9] Popcorn Linux Distributed Thread Execution

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Message-ID: <20200507174631.GE1216@bug>
Date:   Thu, 7 May 2020 19:46:31 +0200
From:   Pavel Machek <pavel@....cz>
To:     Javier Malave <javier.malave@...findustries.com>
Cc:     bx@...findustries.com, linux-kernel@...r.kernel.org,
        ah@...findustries.com
Subject: Re: [RFC 0/9] Popcorn Linux Distributed Thread Execution

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