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Re: [Swarm-Support] Swarm and current Ubuntu


From: Paul Johnson
Subject: Re: [Swarm-Support] Swarm and current Ubuntu
Date: Thu, 17 Sep 2009 12:12:22 -0500
User-agent: Thunderbird 2.0.0.23 (X11/20090817)

Steve Railsback wrote:
> Paul Johnson wrote:
>> Steve Railsback wrote:
>>> Paul Johnson wrote:
>>> What about 64-bit? Would that mean editing BlT and installing it and 
>>> Swarm from source?
> 
>> Which is to say, I'm not entirely sure that 64bit works anywhere,
>> but I bet Marcus and Scott can tell us.  I'm pretty sure on my 64
>> bit systems that Swarm is running in 32 bit mode.
> 
> Sorry, I just meant: I see your Ubuntu binaries are 32 bit; so if I want
> 
> to use 64-bit mode I would have to build my own. (You don't have 64-bit 
> ones hidden away somewhere?)
> 
> I compiled Swarm in 64-bit mode in Fedora. It sped up my models quite a
> bit.

Really?  That seems suspicious to me.  On the same machine, same
hardware, the switch from 32 to 64 is faster?

Stuff I read indicates that 64 bit will be slower.  The benefit is
supposed to be in the ability to handle hardware that has a lot of
RAM.

Just checking, not arguing.

I do have a 64 bit machine and will see about it.  If you tell me
how you build the 64 bit version of Swarm, I will see about it.  I
don't know if blt is supposed to be 64 bit safe.  As you notice, it
appears nobody takes care of blt these days.

pj
> 
> Steve
> 


-- 
Paul E. Johnson                       email: address@hidden
Professor, Political Science          http://pj.freefaculty.org
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University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66044-3177           FAX: (785) 864-5700


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