[RC5] PowerPC RS64III

EnoJon enojon at delphi.com
Tue Dec 12 19:29:06 EST 2000


Ah, big difference in rs64 iii and G4.
g4 450 hits 1Mkeys/sec. without AV 3.5Mkeys/sec with AV.


stvernaillen at ge.cokecce.com wrote:

> >From the IBM website :
>
> The RS64 III processor has the following attributes:
>
> 128 KB on-chip L1 instruction cache
> 128 KB on-chip L1 data cache with one cycle load-to-use latency
> On-chip L2 cache directory that supports up to 8 MB of off-chip L2 cache
> 14.4 GB/s L2 cache bandwidth
> 32-byte wide on-chip busses
> 450 MHz operating frequency
> 140 mm2 die size
> 22 watts maximum power
> 4-way superscalar
> 5 stage deep pipeline
> Branch mispredict penalty of zero or one cycle
>
> EnoJon <enojon at delphi.com> on 10/12/2000 23:01:01
>
> Please respond to rc5 at lists.distributed.net
>
> To:   rc5 at lists.distributed.net
> cc:    (bcc: Stan Vernaillen/BE/CCE)
> Subject:  Re: [RC5] PowerPC RS64III
>
> Mhz?
>
> stvernaillen at ge.cokecce.com wrote:
>
> > All,
> > I tried the AIX client out on an IBM rs6000 H80 with 2 PowerPC RS64III
> > processors thinking I'd see some nice results....( XXXXX)
> > what did i get :[5,328 keys/sec] per processor on rc5.
> > I compared it with an H70 with 4 PowerPC RS64II and it comes up with [934,463
> > keys/sec] which seems a lot better. (YYYYY)
> > On OGR this does not seem to happen
> > PowerPC RS64III : [2,562,456 nodes/sec]
> > PowerPC RS64II  : [1,937,939 nodes/sec]
> > I know the client is a beta version. but i tried with the offical one and got
> > the same results.
> >
> > Does anybody else experience this?
> > Is there that much difference between the two processors?
> > Is it because the auto detection fails...why does it fail (too new proc?)
> > any remedy?
> >
> > is this a know bug ?
> >
> > Stan
> >
> > ikke at XXXXX:/home/ikke/dnet $dnetc -benchmark
> >
> > distributed.net client for AIX Copyright 1997-2000, distributed.net
> > RC5 PowerPC and AltiVec assembly by Dan Oetting
> > Enhancements for 604e CPUs by Roberto Ragusa
> > Please visit http://www.distributed.net/ for up-to-date contest information.
> >
> > dnetc v2.8011-464-CTL-00103123-*dev* for AIX (AIX 4.3).
> > Please provide the *entire* version descriptor when submitting bug reports.
> > The distributed.net bug report pages are at http://www.distributed.net/bugs/
> > Using email address (distributed.net ID) 'stan.vernaillen at pandora.be'
> >
> > [Nov 30 15:05:22 UTC] Automatic processor type detection failed.
> > [Nov 30 15:05:22 UTC] RC5: Running micro-bench to select fastest core...
> > [Nov 30 15:06:54 UTC] RC5: using core #0 (allitnil).
> > [Nov 30 15:07:37 UTC] Benchmark for RC5 core #0 (allitnil)
> >                       0.00:00:18.40 [5,328 keys/sec]
> > [Nov 30 15:07:56 UTC] Benchmark for OGR core #0 (GARSP 5.13)
> >                       0.00:00:16.40 [2,562,456 nodes/sec]
> >
> > ikke at YYYYY:/home/ikke/dnet $dnetc -benchmark
> >
> > distributed.net client for AIX Copyright 1997-2000, distributed.net
> > RC5 PowerPC and AltiVec assembly by Dan Oetting
> > Enhancements for 604e CPUs by Roberto Ragusa
> > Please visit http://www.distributed.net/ for up-to-date contest information.
> >
> > dnetc v2.8011-464-CTL-00103123-*dev* for AIX (AIX 4.3).
> > Please provide the *entire* version descriptor when submitting bug reports.
> > The distributed.net bug report pages are at http://www.distributed.net/bugs/
> > Using email address (distributed.net ID) 'stan.vernaillen at pandora.be'
> >
> > [Nov 30 14:49:40 UTC] Automatic processor type detection found
> >                       a PowerPC RS64II processor.
> > [Nov 30 14:49:40 UTC] RC5: using core #1 (lintilla).
> > [Nov 30 14:49:59 UTC] Benchmark for RC5 core #1 (lintilla)
> >                       0.00:00:16.06 [934,463 keys/sec]
> > [Nov 30 14:50:25 UTC] Benchmark for OGR core #0 (GARSP 5.13)
> >                       0.00:00:21.68 [1,937,939 nodes/sec]
> >
> > --
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