Re: [Beowulf] Intel splits the network

2013-04-22 Thread Greg Lindahl
On Mon, Apr 22, 2013 at 10:35:34AM -0400, atchley tds.net wrote: > I had forgotten about Fulcrum. I was under the impression that Fulcrum made > the chips and sold them to switch vendors. They did. Now at Intel, they've showed off a new architecture (based on shared memory, an unusual implementat

Re: [Beowulf] Are disk MTBF ratings at all useful?

2013-04-22 Thread Lux, Jim (337C)
From: "Peter St. John" mailto:peter.st.j...@gmail.com>> Date: Monday, April 22, 2013 6:19 PM To: mathog mailto:mat...@caltech.edu>> Cc: "beowulf@beowulf.org" mailto:beowulf@beowulf.org>> Subject: Re: [Beowulf] Are disk MTBF ratings at all useful? Human mortality has,

Re: [Beowulf] Are disk MTBF ratings at all useful?

2013-04-22 Thread Lux, Jim (337C)
On 4/22/13 9:11 AM, "Joe Landman" wrote: >On 04/22/2013 12:07 PM, mathog wrote: >> In partial answer to the subject question, let us apply the mode of >> analysis used by the drive manufacturers >> to human life expectancy, as if Humans were one of their products. >> That is, what is the H

Re: [Beowulf] Are disk MTBF ratings at all useful?

2013-04-22 Thread Peter St. John
Human mortality has, broadly, a Poisson, and a non-Poisson, component. The chance of getting hit by a meteor is Poisson, it has nothing to do with your age; but the chance of a 99 year old living to 100 is lower than the chance of a 20 year old living to 21, because we wear out, that's not Poisson.

Re: [Beowulf] Definition of HPC

2013-04-22 Thread Craig Tierney - NOAA Affiliate
On Mon, Apr 22, 2013 at 11:40 AM, Mark Hahn wrote: > understood, but how did you decide that was actually a good thing? >>> >>> Mark, >> >> Because it stopped the random out of memory conditions that we were >> having. >> > > aha, so basically "rebooting windows resolves my performance problems"

Re: [Beowulf] Definition of HPC

2013-04-22 Thread Mark Hahn
>> understood, but how did you decide that was actually a good thing? >> > Mark, > > Because it stopped the random out of memory conditions that we were having. aha, so basically "rebooting windows resolves my performance problems" ;) >> I'm guessing this may have been a much bigger deal on stron

Re: [Beowulf] Definition of HPC

2013-04-22 Thread Craig Tierney - NOAA Affiliate
On Thu, Apr 18, 2013 at 7:21 PM, Mark Hahn wrote: > Only for benchmarking? We have done this for years on our production >> clusters (and SGI provides a tool this and more to clean up nodes). We >> have this in our epilogue so that we can clean out memory on our diskless >> nodes so there is no

Re: [Beowulf] Are disk MTBF ratings at all useful?

2013-04-22 Thread Joe Landman
On 04/22/2013 12:07 PM, mathog wrote: > In partial answer to the subject question, let us apply the mode of > analysis used by the drive manufacturers > to human life expectancy, as if Humans were one of their products. > That is, what is the Human AFR and > MTBF? Unlike for disk drives, we can eas

Re: [Beowulf] Are disk MTBF ratings at all useful?

2013-04-22 Thread mathog
In partial answer to the subject question, let us apply the mode of analysis used by the drive manufacturers to human life expectancy, as if Humans were one of their products. That is, what is the Human AFR and MTBF? Unlike for disk drives, we can easily obtain a table of USA mortality rates, t

Re: [Beowulf] nVidia Kepler GK110 GPU is incompatible w/Intel x86 hardware in PCI-E 3.0 mode ?

2013-04-22 Thread Prentice Bisbal
On 04/18/2013 03:19 PM, Mikhail Kuzminsky wrote: > I've cluster node (w/Linux, of course) based on Supermicro X9SCA > system board and Xeon E3-1230v2 having LGA1155 socket. Now I want to > buy GPU nVidia Kepler GK110 w/PCI-E 3.0 (CK20 Compute Board from PNY > ?) and install it into my node. Int

Re: [Beowulf] Register article on Linux State of the Union

2013-04-22 Thread Prentice Bisbal
Prentice Bisbal Manager of Information Technology Rutgers Discovery Informatics Institute (RDI2) Rutgers University http://rdi2.rutgers.edu On 04/18/2013 11:50 AM, Douglas Eadline wrote: >> http://www.theregister.co.uk/2013/04/17/state_of_linux_2013/ >> >> Some interesting points from an HPC poin

Re: [Beowulf] Intel splits the network

2013-04-22 Thread atchley tds.net
On Mon, Apr 22, 2013 at 7:21 AM, Joe Landman < land...@scalableinformatics.com> wrote: > On 04/22/2013 07:16 AM, atchley tds.net wrote: > > The Intel page linked from above says that it is standards based. I > > assume OpenFlow, but I don't see it listed anywhere. Ahh, looking at one > > of their

Re: [Beowulf] Intel splits the network

2013-04-22 Thread Joe Landman
On 04/22/2013 07:16 AM, atchley tds.net wrote: > The Intel page linked from above says that it is standards based. I > assume OpenFlow, but I don't see it listed anywhere. Ahh, looking at one > of their white papers, it mentions it could be based on an API like > OpenFlow. > > Intel is moving into

Re: [Beowulf] Intel splits the network

2013-04-22 Thread atchley tds.net
The Intel page linked from above says that it is standards based. I assume OpenFlow, but I don't see it listed anywhere. Ahh, looking at one of their white papers, it mentions it could be based on an API like OpenFlow. Intel is moving into switches? Does Intel already make switches? On Fri, Apr