[Todd Madson]

http://n0cgi.distributed.net/speed/query.cgi?cputype=99&cpumhz=1600&recordid =1&contest=rc5&multi=0

This person showed up in the lists over @ distributed.net for
the rc5 competition.

I want THAT computer! 1.6 Ghz G4. I wonder who has that one?

Massively overclocked? Or just a nice little box inside Apple somewhere?

[ 05-15-2002: Message edited by: Todd Madson ]

[Bockie]

Probably a mistyped DP800. 800x2=1600 Just a thought.

[Tigerabbit]

I want this one: http://n0cgi.distributed.net/speed/query.cgi?cputype=66&cpumhz=866&recordid=1 &contest=all&multi=1

The keyrate looks like it may be legit. Maybe an xServer test model (G4 quad 867 Mhz)? 'Twould be sweet.

[ 05-16-2002: Message edited by: Tigerabbit ]

[Shaktai]

Originally posted by Tigerabbit:
<STRONG>I want this one: http://n0cgi.distributed.net/speed/q...ll&amp;multi=1

The keyrate looks like it may be legit. Maybe an xServer test model (G4 quad 867 Mhz)? 'Twould be sweet.

[ 05-16-2002: Message edited by: Tigerabbit ]</STRONG>

You do know that the dual gig model that is available, will do 20,000,000 kps don't you? CPU shows as a 7400, so an early protype multi-processor at best, if legit.

Me? I just want a stack of the dual gig Xservers. I have a nice empty corner in my apartment where they would fit perfectly. Mind you I am not greedy. 20 or 25 (40-50 ghz) would be sufficient to my wants. I wouldn't need a whole 8 foot towers worth. Of course I wouldn't turn it down either.

[SkiBikeSki]

That is certainly a mis-typed Dual 800. If there were a 1600MHz G4, it would perform slightly worse than double a 800MHz G4, but that thing was more than double and less than triple.

Also, I still cann't belive that the Dual 1GHz can do 20MKeys/s. That means that each processor is doing about 10MKeys/s. That a huge improvement over the efficiency of my 867. For instace, my 867 would get 8.67MKeys/s (not the current 7.7MKeys/s) if it were just as efficient.

[Todd Madson]

There are a lot of factors on making things more efficient for rc5:
-100 mhz bus or 133 mhz bus?
-is bus overclocked or not?
-how much memory and what speed memory?

The new xServe boxen will be great because they have the faster DDR
ram, a fast bus and fast processors.

My own G4 is a 400 with a 100 mhz bus.
I have 1.6 gigs of PC133 ram.

I can overclock the bus if I want, but the cpu must be modded to
let this occur apparently.

One thing I do is overclock the L2 cache on my system. The XLR8
software that comes with their processor accelerator boards will
also speed up the L2 cache on G3/G4 systems.

So my 199 mhz L2 cache is now 265.7 mhz and definetely makes for
faster RC5 performance. I used to get around 3,450,000 kkeys/sec,
but I'm at 3,576,000+ with the L2 cache boosted.

I'm considering getting some kind of CPU upgrade - I need to move
more keys. I have to make a million wus before the contest ends.

Once it's done I'll probably move every machine in my farm to seti
until that's done.

[Scotttheking]

Originally posted by Todd Madson:
<STRONG>There are a lot of factors on making things more efficient for rc5:
</STRONG>

The only thing rc5 cares about is MHz. Nothing else in the system matters, since it loads itself into L1/L2 cache and stays there.

I'm closing this thread, please think people.
We all know that it's open web submission. People put dumb things there.