[Fwd: Re: [Swift-devel] Re: swift-falkon problem... plots to explain plateaus...]

[Ioan Raicu]

What I think would be nice to have, is a "high performance" option, 
which would disable all logging everywhere in Swift, except for the bare 
essential for Swift to be operational, in order to allow Swift to get 
the best performance possible.  This doesn't have to be the default, but 
could allow a user to simply toggle a parameter and go from fast 
performance mode to slow debug mode.  I think what we are trying to say 
with our recent experience with the BG/P is that we (as the users of 
Swift on BG/P) would be willing to live with a boolean error code if it 
meant that we could get significantly better performance, which in turn 
would give us higher resource utilization.

Ioan

Ben Clifford wrote:
> On Tue, 1 Apr 2008, Michael Wilde wrote:
>
>   
>> I'm in favor of heading to an approach where we have good fast default
>> configurations for all our locally used systems (TG, OSG and the
>>     
>
> good != fast
>
> for example, debuggable and non-desturctive-to-target-resource are other 
> desirable characteristics. the debuggable one is especially important. 
> Crippling the logging system to achieve faster execution is something that 
> should be turned on, not off - that moves error reporting back to a 
> boolean WRONG! style of reporting rather than the (I think) more useful 
> stuff that we have at the moment. Likewise, pushing stuff up to the limit 
> of what a site can handle (especially using GRAM2) is something that 
> should be approached with caution and not by default.
>
>
>   

-- 
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Ioan Raicu
Ph.D. Candidate
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Distributed Systems Laboratory
Computer Science Department
University of Chicago
1100 E. 58th Street, Ryerson Hall
Chicago, IL 60637
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Email: iraicu at cs.uchicago.edu
Web:   http://www.cs.uchicago.edu/~iraicu
http://dev.globus.org/wiki/Incubator/Falkon
http://dsl-wiki.cs.uchicago.edu/index.php/Main_Page
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