[Swift-devel] Re: scheduler foo

Mihael Hategan hategan at mcs.anl.gov
Tue Jul 29 20:32:52 CDT 2008


On Tue, 2008-07-29 at 20:14 -0500, Mihael Hategan wrote:
> On Tue, 2008-07-29 at 19:42 -0500, Mihael Hategan wrote:
> > On Tue, 2008-07-29 at 19:35 -0500, Mihael Hategan wrote:
> > > I put that in. This should be easier to debug and understand.
> > > 
> > > The problem, however, seems to be that wonky causes, after a while, the
> > > score to go to the minimum which in turn causes delays in the order of
> > > thousands of seconds. I need to figure out why this is happening,
> > > because I don't think it should.
> > 
> > Hmm. So if I change max load to be a constant 32, things seem to go
> > fine.
> 
> Nevermind that.

Ok, so one problem was the delayed score factoring. It could cause, in
many cases, a negative score to be repeatedly applied even for
successful jobs, causing the score to go very low very quickly. I
removed that for now. The behavior seems smoother.

> 
> > 
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