Feeds

HP puts clear blue water between McKinley, Itanic Mk1

New chipset breaks cover

  • alert
  • submit to reddit

Maximizing your infrastructure through virtualization

IDF When we spoke to Jim Carlson, HP's IA-64 chief on Friday, we also got treated to an all-star line up of engineers from its chipset division. Andrew Wheeler, who heads up the R&D at the chipset division, and Jim Brokish talked us through the new chipset design.

Real kit based on the zx1 (for Brits of a certain age, it's sooo hard not to slip an '8' between the x and the 1, there) won't appear until the summer. But the zx1 is the first detailed McKinley chipset to streak into public view.

The zx1 has an integrated I/O controller (the zx1 ioa) that handles AGP-4X, PCI and PCI-X. The memory controller (zx1 sme) talks to 200Mhz DDR, with a 4.3 GB/s throughout. There are eight I/O channels. The fourway version of the chipset uses four of these for two PCI-X 133 buses, and the remainder for PCI-X 66. The two-way version opts for an AGP bus in place of one of the PCI-X buses. The single-processor chipset divvies six channel between the AGP bus (two), the PCI-X 133 (two) and two PCI-66 buses. HP claims a slightly lower throughput of 3 GB/s for the single processor version.

"Only data transfers from the processor cache to I/O appear on the processor bus," says Andrew. "That minimizes the traffic: all other DMA transfers are kept off the bus."

"Some chipsets take advantage of DMA off the bus, but we're sensitive to performance and cost. We attach the DIMM buses directly to the chipset."

"Our product strategy is to run through the low-end RISC and then the midrange, then high-end," explains Carlson. So zx1 has been built with price performance as an important consideration.

But HP still expects trials to continue for some time.

"We expect interest from the public sector - particularly in simulation and modeling. And for Linux clusters. For another year people will say 'I want to put this in a pilot that mimics a business process. Or add some to existing web server farms'".

HP says it's already taken an order for the zx1-based McKinleys, but can't say who. ®

The Power of One eBook: Top reasons to choose HP BladeSystem

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
SHOCK and AWS: The fall of Amazon's deflationary cloud
Just as Jeff Bezos did to books and CDs, Amazon's rivals are now doing to it
BlackBerry: Toss the server, mate... BES is in the CLOUD now
BlackBerry Enterprise Services takes aim at SMEs - but there's a catch
The triumph of VVOL: Everyone's jumping into bed with VMware
'Bandwagon'? Yes, we're on it and so what, say big dogs
Carbon tax repeal won't see data centre operators cut prices
Rackspace says electricity isn't a major cost, Equinix promises 'no levy'
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Securing Web Applications Made Simple and Scalable
Learn how automated security testing can provide a simple and scalable way to protect your web applications.