[Beowulf] onboard Gb lan: any opinion, sugestion or impression?
becker at scyld.com
Tue Nov 14 07:21:26 PST 2006
On Tue, 14 Nov 2006, Jones de Andrade wrote:
> Well, I've found some discussions within this list about brands of switches,
> and some about network card brands also.
> We came to a question here, in the cluster we are planning: how usefull are
> the, now so common, onboard gigabit networks (even dual networks) that are
> shipped in the motherboards? Great, bood, bad or terrible performance?
Almost all of the on-board Gigabit Ethernet NICs are very good. They
are integrated into the primary chipset
- giving them good access to main memory and
- reducing the opportunity for vendors to use the cheapest NIC chip.
You won't find advanced offload features, but you do get good, solid
A secondary effect is that there are now very few NIC families, and those
vendors are motivated to support/control their drivers. The network
device driver challenge of a decade ago, supporting hundreds of designs,
is all but gone.
> stability issues? Much concern about it's use for clusters? Is there any
> example, or benchmark available of different onboard network chips in any
> (cluster?) application?
> Thanks a lot in advance,
> Sincerally yours,
> Beowulf mailing list, Beowulf at beowulf.org
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Donald Becker becker at scyld.com
Scyld Software Scyld Beowulf cluster systems
914 Bay Ridge Road, Suite 220 www.scyld.com
Annapolis MD 21403 410-990-9993
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