Archives


- Beowulf
- Beowulf Announce
- Scyld-users
- Beowulf on Debian

Cluster MOBO suggestions

Many of your questions may have already been answered in earlier discussions or in the FAQ. The search results page will indicate current discussions as well as past list serves, articles, and papers.

Search

Richard Walsh rbw at networkcs.com
Mon Jan 8 09:25:20 PST 2001


Mike Mettke wrote:

>did anybody run the same test on an Serverworks HE chipset ?
>They claim 4.1GByte/s bandwidth which sounds, well, fantastic.
>If that's anywhere near true we might get them.

These looks like the numbers you get with reading and writing from/to
the coppermine L1 cache (nothing to do with the chipset). L2 cache 
gives you about 2 GBytes/s (again nothing to do with the chipset), 
and memory gives you about 500 Mbytes/s if you run 2 stream jobs 
simultaneously (peak for a single job is about the same as the 
number for the LE ~380 MBytes/sec). 

As has been pointed before (Steffen Persvold), it works out that 
the SW_HE dual boards get about a 35% performance boost over SW_LE 
when running two stream jobs simultaneously.

Regards,

rbw
#---------------------------------------------------
#
# Richard Walsh
# Project Manager, Financial Markets
# netASPx, Inc.
# 1200 Washington Ave. So.
# Minneapolis, MN 55415
# VOX:    612-337-3467
# FAX:    612-337-3400
# EMAIL:  rbw at networkcs.com, richard.walsh at netaspx.com
#
#---------------------------------------------------
# "What you can do, or dream you can, begin it;
#  Boldness has genius, power, and magic in it."
#                                  -Goethe
#---------------------------------------------------
# "Without mystery, there can be no authority."
#                                  -Charles DeGaulle
#---------------------------------------------------






More information about the Beowulf mailing list