From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark H Weaver <mhw@netris.org>
Subject: Re: [PATCH] Add FastTree
Date: Sun, 21 Jun 2015 03:32:29 -0400
Message-ID: <874mm1a54i.fsf@netris.org>
References: <5583C3A2.1080906@uq.edu.au> <87oakcqa4r.fsf@gmail.com>
	<55849800.30201@uq.edu.au> <5584FAF9.8090902@uq.edu.au>
	<87zj3u9u4r.fsf@netris.org> <5585F347.5060004@uq.edu.au>
	<878ubdad2b.fsf@netris.org> <55865F2B.7010007@uq.edu.au>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:48680)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <mhw@netris.org>) id 1Z6ZkC-0002JM-MM
	for guix-devel@gnu.org; Sun, 21 Jun 2015 03:32:45 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <mhw@netris.org>) id 1Z6Zk5-0001oz-0Z
	for guix-devel@gnu.org; Sun, 21 Jun 2015 03:32:40 -0400
Received: from world.peace.net ([50.252.239.5]:41459)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <mhw@netris.org>) id 1Z6Zk4-0001ov-T7
	for guix-devel@gnu.org; Sun, 21 Jun 2015 03:32:36 -0400
In-Reply-To: <55865F2B.7010007@uq.edu.au> (Ben Woodcroft's message of "Sun, 21
	Jun 2015 16:52:27 +1000")
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
To: Ben Woodcroft <b.woodcroft@uq.edu.au>
Cc: guix-devel@gnu.org, Alex Kost <alezost@gmail.com>

Ben Woodcroft <b.woodcroft@uq.edu.au> writes:

> On 21/06/15 14:41, Mark H Weaver wrote:
>> Is there any reason to build the single-threaded version?  Maybe it
>> would be better to omit it, and call the multi-threaded version
>> FastTree.  What do you think?
> I considered this. I have only ever used the multithreaded version,
> but the one advantage of the single-threaded mode is that it is
> deterministic as I understand, where the multi-threaded version is
> not. From the webpage:
>
>> FastTreeMP will not give exactly the same results as FastTree
>> because 
> the top-hits heuristics become non-deterministic
>
> Ubuntu has separate fasttree and fasttreeMP for reference.

Okay, makes sense.  Applied, thanks!

     Mark