Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Tim Cutts
On 3 Apr 2009, at 11:11 pm, Mark Hahn wrote: involved with Linux, and open source things such as XFS we would not have the enterprise-level features that we see now. unclear in several ways. for instance, linux has hotplug cpu and memory support, but I really think this is dubious, since t

Re: [Beowulf] Interesting google server design

2009-04-03 Thread Robert G. Brown
On Fri, 3 Apr 2009, Greg Lindahl wrote: On Fri, Apr 03, 2009 at 09:14:37AM -0400, Robert G. Brown wrote: b) The idea is to get the heat production OFF the motherboard. One really interesting thing about the google design is that they hang the stock OTC power supply off the back, altogether

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Mark Hahn
Not every cluster FS we see is Lustre. so what are the non-lustre scalable options for cluster FS? ___ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beo

Re: [Beowulf] Efficient UPS Aids Google?s Extreme PUE

2009-04-03 Thread Nifty Tom Mitchell
On Fri, Apr 03, 2009 at 02:10:28PM -0300, ariel sabiguero yawelak wrote: > >I was wondering if the battery supplies energy for the whole system or >just the mainboard. If you check the cables, the hard-drives are still >12V+5V powered. Do you think that they just run without swap and i

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Joe Landman
Greg Lindahl wrote: On Fri, Apr 03, 2009 at 08:15:06PM -0400, Joe Landman wrote: It has been, realistically, the only serious choice for big/fast data systems on Linux for quite some time. Most big/fast data systems don't have big filesystems. In HPC, the biggest use something like Lustre; i

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Greg Lindahl
On Fri, Apr 03, 2009 at 08:15:06PM -0400, Joe Landman wrote: > It has been, realistically, the only serious choice for big/fast > data systems on Linux for quite some time. Most big/fast data systems don't have big filesystems. In HPC, the biggest use something like Lustre; in business, the big

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Joe Landman
Glen Beane wrote: On Fri, Apr 03, 2009 at 08:47:42AM +0200, Eugen Leitl wrote: On Fri, Apr 03, 2009 at 07:34:26AM +0800, Stuart Midgley wrote: > In 2019 when Intel releases their 1024core chip, still at 2.5GHz with > 256GB dimm memory, a lot of people will be surprised that linux works Ai

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Joe Landman
Robert G. Brown wrote: You mean a Linux/BSD home where somebody put a knife through the heart of aimk so it could die die die? I hope so. mm (looks for his wooden stake and mallet) -- Joseph Landman, Ph.D Founder and CEO Scalable Informatics LLC, email: land...@scalableinformatics.c

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Joe Landman
Mark Hahn wrote: from my position, XFS was a semi-fringe option for people who distrusted ext3 for some reason. (and there were a few solid ones, mainly just >8TB.) going forward, I expect to use ext4 H... rather odd view. xfs has been around quite a bit longer than ext3. It has bee

Re: [Beowulf] Interesting google server design

2009-04-03 Thread Greg Lindahl
On Fri, Apr 03, 2009 at 09:14:37AM -0400, Robert G. Brown wrote: > b) The idea is to get the heat production OFF the motherboard. One > really interesting thing about the google design is that they hang the > stock OTC power supply off the back, altogether outside of the case It looks to me li

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Greg Lindahl
On Fri, Apr 03, 2009 at 07:20:32PM -0400, Glen Beane wrote: > memory bandwidth? The number of cores on a single CPU is growing > much faster than the memory bandwidth to that CPU, right? The same thing has happened in the past. For example, "shared bus" multiprocessors. -- greg _

RE: [Beowulf] Rackable / SGI

2009-04-03 Thread Glen Beane
From: beowulf-boun...@beowulf.org [beowulf-boun...@beowulf.org] On Behalf Of Greg Lindahl [lind...@pbm.com] Sent: Friday, April 03, 2009 4:32 PM To: beowulf@beowulf.org Subject: Re: [Beowulf] Rackable / SGI On Fri, Apr 03, 2009 at 08:47:42AM +0200, Eugen

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Robert G. Brown
On Fri, 3 Apr 2009, Jon Forrest wrote: John Hearns wrote: Taking up my contrary position of today, lets ask what would happen if there was NO vendor input - specifically to the Linux kernel. I know I am not answering like with like, as you ask about SGE, but I hope my point is clear. It i

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Greg Lindahl
On Fri, Apr 03, 2009 at 06:11:43PM -0400, Mark Hahn wrote: > unclear in several ways. for instance, linux has hotplug cpu > and memory support, but I really think this is dubious, since there's > damn little hardware that supports it, _anywhere_. > it's more of a "bank" feature rather than merel

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Mark Hahn
involved with Linux, and open source things such as XFS we would not have the enterprise-level features that we see now. unclear in several ways. for instance, linux has hotplug cpu and memory support, but I really think this is dubious, since there's damn little hardware that supports it, _an

Re: [Beowulf] Efficient UPS Aids Google?s Extreme PUE

2009-04-03 Thread David Mathog
Greg Lindahl > On Fri, Apr 03, 2009 at 09:14:24AM -0700, David Mathog wrote: > > > In the picture on the OP's link the external PS does not look any bigger > > than a standard unit, which leaves very little room in it for the UPS > > battery. > > The picture shows 2 things sticking out. One is th

Re: [Beowulf] X5500

2009-04-03 Thread Vincent Diepeveen
Hi Ellis, First of all most big clusters are really expensive forms of computing. Hardware outdates really rapidly. Most companies sell products, they hardly do research. Research is exclusively government domain, at least in most European states. If a company is carrying out research, it usu

Re: [Beowulf] X5500

2009-04-03 Thread Greg Lindahl
On Thu, Apr 02, 2009 at 09:05:26PM -0700, Ellis Wilson wrote: > Though entertainingly put, it would be an error to say "ECC is a > requirement" for everyone in a "cluster group". I can think of more > than just a few purposes for clusters that truly do not require the > accuracy guaranteed by

Re: [Beowulf] Efficient UPS Aids Google?s Extreme PUE

2009-04-03 Thread Greg Lindahl
On Fri, Apr 03, 2009 at 09:14:24AM -0700, David Mathog wrote: > In the picture on the OP's link the external PS does not look any bigger > than a standard unit, which leaves very little room in it for the UPS > battery. The picture shows 2 things sticking out. One is the PS, the one on the other

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Greg Lindahl
On Fri, Apr 03, 2009 at 08:47:42AM +0200, Eugen Leitl wrote: > On Fri, Apr 03, 2009 at 07:34:26AM +0800, Stuart Midgley wrote: > > > In 2019 when Intel releases their 1024core chip, still at 2.5GHz with > > 256GB dimm memory, a lot of people will be surprised that linux works > > Ain't going

Re: [Beowulf] Efficient UPS Aids Google?s Extreme PUE

2009-04-03 Thread ariel sabiguero yawelak
I was wondering if the battery supplies energy for the whole system or just the mainboard. If you check the cables, the hard-drives are still 12V+5V powered. Do you think that they just run without swap and if power fails they just announce that nodes is going down and dies? Do you prefer thinking

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Jon Forrest
John Hearns wrote: Taking up my contrary position of today, lets ask what would happen if there was NO vendor input - specifically to the Linux kernel. I know I am not answering like with like, as you ask about SGE, but I hope my point is clear. It is. I should have been clearer. I wasn't t

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread John Hearns
2009/4/3 Jon Forrest : > > > Which brings up the question of whether SGE, and similar vendor supported > projects, really need to be vendor supported. There are many consortia, > foundations, and what-not these days that manage to produce and maintain > some pretty complicated software. Why couldn'

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Jon Forrest
Robert G. Brown wrote: There are similar questions associated with IBM. Sun provides support for some major tools used in Linux these days, notably open office but also SGE. Which brings up the question of whether SGE, and similar vendor supported projects, really need to be vendor supporte

Re: [Beowulf] Efficient UPS Aids Google?s Extreme PUE

2009-04-03 Thread David Mathog
Nifty Tom Mitchell wrote > > I suspect that the UPS component is very short. i.e. finish the current > search, notify the distributed google world that the 'node' is going > off line and then go off line. I doubt that the specifications for the > UPS are hours or days the way a national weather

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Joe Landman
John Hearns wrote: Would a Sun/SGI merger have been a marriage made in heaven? No. Wy too much ego (both sides). Wouldn't work. Even worse than Cray + SGI didn't work (for the same reason). Don't worry, taxi is ordered and I have my coat. :) -- Joseph Landman, Ph.D Founder and C

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Tim Cutts
On 3 Apr 2009, at 3:17 pm, John Hearns wrote: 2009/4/3 Robert G. Brown : There are similar questions associated with IBM. Sun provides support for some major tools used in Linux these days, notably open office but also SGE. Don't forget MySQL Who knows what the result of the catfight

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread John Hearns
2009/4/3 Rayson Ho : > On Fri, Apr 3, 2009 at 9:17 AM, John Hearns wrote: >>> > There are similar questions associated with IBM.  Sun provides support >>> for some major tools used in Linux these days, notably open office but also >>> SGE. >> >> Don't forget MySQL >> Who knows what the result of

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Rayson Ho
On Fri, Apr 3, 2009 at 9:17 AM, John Hearns wrote: >> > There are similar questions associated with IBM. Sun provides support >> for some major tools used in Linux these days, notably open office but also >> SGE. > > Don't forget MySQL > Who knows what the result of the catfight between DB2 and

[Beowulf] Re: Interesting google server design

2009-04-03 Thread Bob Drzyzgula
On 01/04/09 18:59 -0700, Ellis Wilson wrote: > > Beyond that, building an entire cluster of that size into a large > shipping container is genius - given access and resources to a crane and > proper machining expertise. But then again if your building a cluster > of that size I suppose the cra

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread John Hearns
2009/4/3 Robert G. Brown : > > There are similar questions associated with IBM. Sun provides support > for some major tools used in Linux these days, notably open office but > also SGE. Don't forget MySQL Who knows what the result of the catfight between DB2 and MySQL would be > Finally I do

RE: [Beowulf] Rackable / SGI

2009-04-03 Thread Robert G. Brown
On Wed, 1 Apr 2009, Ian Dillon wrote: Likewise Joe, watching the demise of SGI has been incredibly hard to fathom. This was a great company with tons of energy/potential and did right by their employees back in the day. I think this is why so many of us feel for the company and its current empl

Re: [Beowulf] Interesting google server design

2009-04-03 Thread Robert G. Brown
On Thu, 2 Apr 2009, Greg Lindahl wrote: On Thu, Apr 02, 2009 at 10:11:07AM -0400, Prentice Bisbal wrote: Or it could be because they make motherboards that convert 12 VDC to 5 VDC on the motherboard. All Itanium and some other x86 boxes take a single 48V input to the mobo. I talked to a mobo

Re: [Beowulf] SGI and Sun: In Memoriam

2009-04-03 Thread Tim Cutts
On 3 Apr 2009, at 12:14 am, Lux, James P wrote: But at least the assembler is still source code compatible with your code for an 8080. Is it really? Do mov a,m or dad d exist on X86? I always got the impression that there wasn't real compatibility between the 8080 and 8086, just that

Re: [Beowulf] SGI and Sun: In Memoriam

2009-04-03 Thread Tim Cutts
On 2 Apr 2009, at 10:22 pm, Michael Brown wrote: On the other side, there's Sun's official "OpenSolaris" distribution, which is confusingly named the same as the OpenSolaris project, which is somehow related to Solaris 11, and then there's Solaris Express, which doesn't exist any more ...

Re[2]: [Beowulf] Rackable / SGI

2009-04-03 Thread Jan Heichler
Hallo John, Freitag, 3. April 2009, meintest Du: JH> 2009/4/3 Mike Davis : >> > My experience is the polar opposite. SGI quotes took forever. And that >> situation goes back to the mid 90's. I can usually have a Sun quote in >> hours. JH> This should not turn into a slanging match, but I'll back

Re: [Beowulf] Interesting google server design

2009-04-03 Thread Bogdan Costescu
On Thu, 2 Apr 2009, Bill Broadley wrote: Definitely a nice layout for front -> back airflow. No perpendicular dimms or heatsinks. With fans blowing from the top ? And with the only air flow possible on one side through the fins on the power supply ? And how are the disks cooled ? How abou

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread John Hearns
2009/4/3 Mike Davis : > > My experience is the polar opposite. SGI quotes took forever. And that > situation goes back to the mid 90's. I can usually have a Sun quote in > hours. This should not turn into a slanging match, but I'll back Stuart up. SGI can ands have responded in a very timely fashi