UltraSPARC T2 for HPC: A Customer Assessment

Dieter an Mey, HPC Team Lead at RWTH Aachen's Center for Computing and Communication, presented an evaluation of the suitability of Sun's UltraSPARC T2 processor for High Performance Computing at the HPC Consortium meeting in Reno.

The Aachen study compares systems with the T2 processor against systems with Sun's UltraSPARC IV processor, with AMD Opteron processors, and with Intel Woodcrest and Clovertown processors. The test cases used were representative of a range of applications and attributes that are important to users at Aachen.

I will briefly summarize the results here and recommend those interested in more detail visit this page for a full explanation of the methodology and to view the detailed results.

Aachen examined several performance kernels: memory bandwidth, LINPACK, and sparse matrix-vector multiplication. They also examined results for several applications, including TFS, which used to model nasal flow for computer-aided surgery. This code can be run in several ways using OpenMP for parallelization. They also ran FLOWer and a code does contact analysis of bevel gears. In addition to these application tests, Aachen ran multiple instances of applications simultaneously to assess the throughput capabilities of each system. A power and performance/power analysis was also done.

The results showed that a combination of T2-based systems and x64/x86 systems would be ideal for Aachen. Very cache-friendly codes did not benefit as much from the N2 architecture and these performed better on the Intel and AMD based systems. The bevel gear code is an example of such a code. TFS, on the other hand, performed better in throughput mode on the T2 system. In both cases the best results were 2X better than the altenative. That is, the Intel/AMD systems generally did about 2X better than the T2 system on cache-friendly codes while the T2 system was 2X better in cases where memory bandwidth was a limiting factor.


Comments:

N2? You mean T2, no?

Posted by b on November 15, 2007 at 03:40 AM EST #

Thanks for catching that. The internal code name for the T2
processor is Niagara 2, which we abbreviate N2. Will fix that.

Josh

Posted by Josh Simons on November 15, 2007 at 04:27 AM EST #

Nice caricature. I like art so much, but unfortunately I can't drawing so good..
http://www.jihoy.com/classifieds/local
http://www.jihoy.com/webadvertising
http://www.amerisleep.com

Posted by memory foam mattress on March 15, 2010 at 06:41 PM EDT #

Which ever way the wind blows. Some say we never really grow up until life is short and hopefully wisdom has prevailed. Set sail for different horizons and suck it up. Stop looking for something to love and enjoy what life and your spirit can dish up.

Posted by banquet halls on April 02, 2010 at 12:29 AM EDT #

Good luck for the work. More and more team members have been contributing fresh ideas, as I can read from your posts.

Posted by sanejenny on July 08, 2010 at 12:16 AM EDT #

Good luck for the work.More and more team members have been contributing fresh ideas, as I can read from your posts.

Posted by dual flush toilet on July 24, 2010 at 06:47 PM EDT #

Political world is so confusing. The politician never tell the truth. They just think bout themselves I think.
http://architecturalbay.com/
http://thecommunityengine.com
http://knockboutique.com

Posted by RinaBonny on August 29, 2010 at 03:30 PM EDT #

Make a new 7$ bill and put him on it he has earned a part in history but with everything being as screwed as it was when he got in he wont be able to change much but just make a new dollar for him and stand up and clap cause he was the first black pres in history. And one final thing Abe earned hes spot so let Obama do the same.

Posted by Wedding Photography Toronto on October 21, 2010 at 07:41 PM EDT #

Role play is not about the questions they ask you so much as about the situations they want you to respond to e.g. how do you deal with a difficult customer.

Posted by web design on November 07, 2010 at 04:53 PM EST #

Post a Comment:
  • HTML Syntax: NOT allowed
About

Josh Simons

Search

Archives
« April 2014
SunMonTueWedThuFriSat
  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
   
       
Today