[Beowulf] Upgrading to gigabit

Joe Landman landman at scalableinformatics.com
Sat Apr 23 21:57:52 EDT 2005



Jeffrey B. Layton wrote:


>   How many servers do you have? The 32-bit, PCI, Intel GigE
> NICs are pretty good and inexpensive (less than $30). Plus you
> could use something like an SMC 8505T (5-port) or 8508T
> (8-port) GigE switch that will give you jumbo frames, for a
> pretty low cost (the 8508T is about $100).

Interestingly, the SMC and similar low end gigabit cards seem to flood 
the PC's with interrupts under heavy load.   I've had problems with the 
tg3 driver in the past on Broadcomm units.  The bcm5700 driver seemed to 
fix these, though I thought I heard that this driver was being set aside 
in favor of tg3.


-- 
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
web  : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax  : +1 734 786 8452
cell : +1 734 612 4615
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