Re: [abc] cflow call graph timings

From: Oege de Moor <Oege.de.Moor@comlab.ox.ac.uk>
Date: Sat Apr 16 2005 - 12:42:11 BST

I agree with Ondrej's remarks. The precision difference is not yet
mentioned.

On Fri, 15 Apr 2005, Ondrej Lhotak wrote:

> On Fri, Apr 15, 2005 at 07:20:51PM -0400, Prof. Laurie HENDREN wrote:
> > I think these are worth putting in the paper. What do you think?
>
> I don't think so. I think they dilute the happy story too much.
>
> Also, they open up lots of questions we haven't answered. We don't know
> why sablecc is so different. We don't know whether CHA could be
> implemented in BDDs more efficiently.
>
> I think these numbers are interesting to us to begin answering these
> questions, but in the paper, they would draw attention away from the
> very nice, finished results we already have in there.
>
> One thing that I think *is* worth mentioning, and that goes along with
> the story, is the precision difference on sablecc and weka (I think I
> sent the details in an earlier e-mail).
>
> Ondrej
>
> >
> > Laurie
> >
> >
> > +-------------------------------------------------------------+
> > | Laurie Hendren, Professor, School of Computer Science |
> > | McGill University |
> > | 318 McConnell Engineering Building tel: (514) 398-7391 |
> > | 3480 University Street fax: (514) 398-3883 |
> > | Montreal, Quebec H3A 2A7 hendren@cs.mcgill.ca |
> > | CANADA http://www.sable.mcgill.ca/~hendren |
> > | http://wwww.sable.mcgill.ca http://aspectbench.org |
> > +-------------------------------------------------------------+
> >
> > On Fri, 15 Apr 2005, Ondrej Lhotak wrote:
> >
> > > I've split out the cflow timings into encoding the call graph in bdds
> > > and actually doing the analysis and changing advice lists. Here's the
> > > breakdown. All times are in ms.
> > >
> > > Notice that: 1) encoding the CG is the bulk of the time 2) analysis
> > > itself is quite quick, except in sablecc 3) bigger CG (CHA) takes longer
> > > to encode 4) analysis takes a bit longer on bigger CG
> > >
> > > Analysis/advice lists:
> > > PTA CHA
> > > ConaSim 395 668
> > > sablecc 90138 101137
> > > ants 207 128
> > > conastack 152 174
> > > figure 73 100
> > > quicksort 67 95
> > > lodsim 576 1293
> > > weka 1917 2153
> > >
> > > Encoding CG in BDDs:
> > > PTA CHA
> > > ConaSim 19919 47418
> > > sablecc 155913 211815
> > > ants 24970 61446
> > > conastack 19315 57910
> > > figure 17395 44657
> > > quicksort 19222 45051
> > > lodsim 27903 148714
> > > weka 82384 207530
> > >
> > >
> > >
> > >
> >
> >
>
Received on Sat Apr 16 12:42:13 2005

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