Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-26 Thread Matt Ingenthron
Gavin Maltby wrote: On 08/25/05 17:34, Felix Schulte wrote: 8 SF15k running *one* OS instance? I don't think so, I think it is some form of compute cluster. The Sun Fire-Link had a high bandwidth, super low latency interconnect and then through Sun Cluster you had the Remote Shared

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-26 Thread Joerg Schilling
Gavin Maltby [EMAIL PROTECTED] wrote: Hi On 08/25/05 17:19, Felix Schulte wrote: What is the reason for having the cpuids 512 apart? Just bit mask shifting? Well we already had single-core cpus for which the numbering scheme was established (depending on platform layout) and there

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-26 Thread James C. McPherson
Matt Ingenthron wrote: Gavin Maltby wrote: On 08/25/05 17:34, Felix Schulte wrote: 8 SF15k running *one* OS instance? I don't think so, I think it is some form of compute cluster. I bet I know which customer that is. The Sun Fire-Link had a high bandwidth, super low latency interconnect

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-26 Thread Matthew Simmons
JS == Joerg Schilling [EMAIL PROTECTED] writes: JS What do you do when somebody make a machine that can hold more than 512 JS CPU chips? We divide the CPUID space up another way. Someone pointed out that the n and n + 512 approach only applies to serengeti and (I think) starcat.

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-25 Thread Gavin Maltby
Hi On 08/25/05 17:19, Felix Schulte wrote: What is the reason for having the cpuids 512 apart? Just bit mask shifting? Well we already had single-core cpus for which the numbering scheme was established (depending on platform layout) and there was a need to keep the old cpuid namespace

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-25 Thread Felix Schulte
On 8/25/05, Gavin Maltby [EMAIL PROTECTED] wrote: And how is this related to the mythical Sun Fire-Link product? Not that mythical - you used to be able to order it and I know of one site with I think 8 Starcats all linked via this. The numbering choice likely had something to do with

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-25 Thread Gavin Maltby
On 08/25/05 17:34, Felix Schulte wrote: On 8/25/05, Gavin Maltby [EMAIL PROTECTED] wrote: And how is this related to the mythical Sun Fire-Link product? Not that mythical - you used to be able to order it and I know of one site with I think 8 Starcats all linked via this. The numbering

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-25 Thread Bill Sommerfeld
On Thu, 2005-08-25 at 12:37, Gavin Maltby wrote: On 08/25/05 17:34, Felix Schulte wrote: On 8/25/05, Gavin Maltby [EMAIL PROTECTED] wrote: And how is this related to the mythical Sun Fire-Link product? Not that mythical - you used to be able to order it and I know of one site with I

[osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-24 Thread Felix Schulte
Thinking twice about NCPU=559 - which Sun product actually supports 558 CPUs? 8 * 72 (SF15k) gives 576, 4*128 (the Fujitsu 128 CPU gear) gives 512 - no match ;-( Was this an all-new supercomputer project which got canceled, some not-yet released interconnect for SF15k or Niagara-on-SF15k? --

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-24 Thread Torrey McMahon
We could tell you but then we'd have to shoot you. :-P Felix Schulte wrote: Thinking twice about NCPU=559 - which Sun product actually supports 558 CPUs? 8 * 72 (SF15k) gives 576, 4*128 (the Fujitsu 128 CPU gear) gives 512 - no match ;-( Was this an all-new supercomputer project which got

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-24 Thread Felix Schulte
On 8/24/05, Torrey McMahon [EMAIL PROTECTED] wrote: We could tell you but then we'd have to shoot you. :-P Is there still something in work or is the related project in hibernation/canceled? -- _Felix Schulte _|_|_ mailto:[EMAIL PROTECTED] (0 0) ooO--(_)--Ooo

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-24 Thread ken mays
--- Bart Smaalders [EMAIL PROTECTED] wrote: Felix Schulte wrote: On 8/24/05, Torrey McMahon [EMAIL PROTECTED] wrote: We could tell you but then we'd have to shoot you. :-P Is there still something in work or is the related project in hibernation/canceled? Note that the

Re: [osol-discuss] NCPU madness - which Sun product supports 558 CPUs?

2005-08-24 Thread Felix Schulte
On 8/24/05, Torrey McMahon [EMAIL PROTECTED] wrote: We could tell you but then we'd have to shoot you. :-P What about the Sun FireLink product? Is this hardware to build larger NUMA machines (2*SF15k with 2*72 CPUs running one Solaris instance) or something different? -- _Felix