Re: Dual athlon support?

From: Dieter Nützel (dieter.nuetzel@myokay.net)
Date: Wed Aug 02 2000 - 21:13:52 EST

The AMD 760 chip set is UP only but has DDR-SDRAM support.
For SMP you need the AMD 770 chip set. It has DDR-SDRAM support, too.
Both are scheduled for Q4, as I remember right.

I have a 700 MHz Athlon Thunderbird (Slot A!!!) running with a beta BIOS
on my
MSI MS-6167 rev. 1.0B mobo. First it shouldn't support the T-Bird
Athlon...:-)

Here are some benchmarks:

gcc-2.95.2

gcc -O -funroll-loops -DMAIN -o dgemm dgemm.c

SunWave1>./dgemm-O
m:1000 n:1000 k:1000
Ail_max 24, Blj_max 12, A_row_block 85
Shimizu's DGEMM : 183.150 MFLOPS(10.920 sec)
Shimizu's DGEMM : 183.150 MFLOPS(10.920 sec)
Shimizu's DGEMM : 183.318 MFLOPS(10.910 sec)
SunWave1>./dgemm-k6

gcc -O -mcpu=k6 -mpreferred-stack-boundary=2 -malign-functions=4
-fschedule-insns2 -fexpensive-optimizations -DMAIN -o dgemm dgemm.c

NOTE the k6 flag!!!

m:1000 n:1000 k:1000
Ail_max 24, Blj_max 12, A_row_block 85
Shimizu's DGEMM : 260.417 MFLOPS( 7.680 sec)
Shimizu's DGEMM : 260.417 MFLOPS( 7.680 sec)
Shimizu's DGEMM : 260.417 MFLOPS( 7.680 sec)

Not bad I think. 

--
Dieter Nützel
Graduate Student, Computer Science

University of Hamburg
Department of Computer Science
Cognitive Systems Group
Vogt-Kölln-Straße 30
D-22527 Hamburg, Germany

email: nuetzel@kogs.informatik.uni-hamburg.de
@home: dieter.nuetzel@myokay.net

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