I stopped getting Xserves for HPC precisely because they do not have the power or space to allow a decent GPU to be slotted in - at least the Mac Pro allows one or two good ones, especially with some power re-routing..
Given the dire state of Ati computation drivers within OpenCL (people I know are writing their own low level code to get close to the theoretical performance) it's hard to see them catching up with Nvidia on the HPC front, whatever the balance of performance and power is on the games side. Frankly I am getting bored with the rather uninformed "house fire" drivel - it was dumb in the "480 in a Mac Pro" thread (my 480+285 has not exploded, for the record) and is even less relevant to the Quadro 4000 and Tesla discussion.
Jack Dongarra, who most people trust for informed comment on HPC sci-comp issues, has gone on the record saying the Tianhe-1A in China, with over 7000 Teslas, blows away the current no 1 world supercomputer. You can read his comments in the NY Times at:
http://www.nytimes.com/2010/10/28/technology/28compute.html?_r=1
For the rest of us, what we all REALLY need is the stuff on the CD that ships with the 4000, because then we can try out the netkas injector with the 480/470, Quadro and Tesla cards not yet made Mac-native.
Given the dire state of Ati computation drivers within OpenCL (people I know are writing their own low level code to get close to the theoretical performance) it's hard to see them catching up with Nvidia on the HPC front, whatever the balance of performance and power is on the games side. Frankly I am getting bored with the rather uninformed "house fire" drivel - it was dumb in the "480 in a Mac Pro" thread (my 480+285 has not exploded, for the record) and is even less relevant to the Quadro 4000 and Tesla discussion.
Jack Dongarra, who most people trust for informed comment on HPC sci-comp issues, has gone on the record saying the Tianhe-1A in China, with over 7000 Teslas, blows away the current no 1 world supercomputer. You can read his comments in the NY Times at:
http://www.nytimes.com/2010/10/28/technology/28compute.html?_r=1
For the rest of us, what we all REALLY need is the stuff on the CD that ships with the 4000, because then we can try out the netkas injector with the 480/470, Quadro and Tesla cards not yet made Mac-native.