Re: [Beowulf] [External] Re: old sm/sgi bios

2023-03-23 Thread Jon Forrest
prerequisite black fingernail polish. I don't remember how or why, but during the interview I claimed that SGI was doomed because of the rising power of PCs and their graphics cards. He seemed to take this personally and the interview ended. I didn't get the job. Cordially, J

Re: [Beowulf] Deskside clusters

2021-08-25 Thread Jon Forrest
nteractive processes so the desktops' users (hardly) noticed. Sure, it wasn't as fast or pretty as a real cluster, but it falls into the computational category I invented called Pretty High Performance Computing (PHPC). Cordially, Jon Forr

Re: [Beowulf] [External] RIP CentOS 8

2020-12-10 Thread Jon Tegner
On 12/10/20 10:55 AM, Jon Tegner wrote: What about https://linux.oracle.com/switch/centos/ Regards, /jon Possibly a good option - if I didn't trust Oracle even less than IBM.  I wonder if ElRepo will work that the Oracle distro? RH has removed a lot of hardware support lately an

Re: [Beowulf] [External] RIP CentOS 8

2020-12-10 Thread Jon Tegner
What about https://linux.oracle.com/switch/centos/ Regards, /jon On 12/9/20 7:19 AM, Carsten Aulbert wrote: On 09.12.20 07:12, Tony Brian Albers wrote: > So, if you use CentOS, I can only recommend Springdale. Just fresh from my Twitter stream: https://github.com/hpcng/rocky &quo

Re: [Beowulf] HPC workflows

2018-11-29 Thread Jon Forrest
need for what I call "pretty high performance computing", which is the highest performance computing you can achieve, given practical limits like funding, space, time, ... Sure there will always people who can figure out how to go faster, but PHP

Re: [Beowulf] What is rdma, ofed, verbs, psm etc?

2017-09-21 Thread Jon Tegner
What kind of latency can one expect using RoCE/10G? On 09/21/2017 05:28 PM, Douglas Eadline wrote: I think the main reason it stopped was that IB is the choice of most clusters and most 10G nics provide low latency with default tcp/ip (less than 10us in most cases). ___

Re: [Beowulf] What is rdma, ofed, verbs, psm etc?

2017-09-20 Thread Jon Tegner
rdware (unlike gamma - where one could use standard hardware, and still get a noticeable improvement in latency)? Thoughts? /jon On 09/21/2017 04:09 AM, Christopher Samuel wrote: Thanks Peter for the high level overview! A few followup questions. What if I am using a non-Infiniband cluster

Re: [Beowulf] How to know if infiniband network works?

2017-08-03 Thread Jon Tegner
Isn't latency over RDMA a bit high? When I've tested QDR and FDR I tend to see around 1 us (using mpitests-osu_latency) between two nodes. /jon On 08/03/2017 06:50 PM, Faraz Hussain wrote: Here is the result from the tcp and rdma tests. I take it to mean that IB network is perform

Re: [Beowulf] Timeout on eth0 when booting disk less

2017-03-13 Thread Jon
hanks, /jon Skickat från min iPhone > 13 mars 2017 kl. 21:15 skrev mathog : > > On 12-Mar-2017 12:00, Jon Tegner wrote >> This could possibly be a problem with the switch, but one remedy would >> seem to be to extend the time before the timeout kicks in (it seems to >>

[Beowulf] Timeout on eth0 when booting disk less

2017-03-12 Thread Jon Tegner
e the timeout kicks in (it seems to be a few seconds at the moment). Any hints on how to achieve this? Thanks, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit

Re: [Beowulf] Suggestions to what DFS to use

2017-02-13 Thread Jon Tegner
BeeGFS sounds interesting. Is it possible to say something general about how it compares to Lustre regarding performance? /jon On 02/13/2017 05:54 PM, John Hanks wrote: We've had pretty good luck with BeeGFS lately running on SuperMicro vanilla hardware with ZFS as the underlying files

Re: [Beowulf] Scaling issues on Xeon E5-2680

2016-02-29 Thread Jon Tegner
Found out what was wrong... Turned out the hardware was delivered with 15 of the 16 memory slots populated No wonder we had performance issues! Anyway, thanks a a lot, all who answered! /jon On 02/29/2016 06:48 PM, Josef Weidendorfer wrote: Am 28.02.2016 um 16:27 schrieb Jon Tegner

Re: [Beowulf] Scaling issues on Xeon E5-2680

2016-02-28 Thread Jon Tegner
ntative for the nodes. However, haven't used numastat before, and maybe it should be used simultaneously as the job is running (which it wasn't now)? Thanks! /jon On 02/28/2016 04:30 PM, cbergst...@pathscale.com wrote: Do you have CPU affinity enabled? Is this omp + MPI? Which compil

[Beowulf] Scaling issues on Xeon E5-2680

2016-02-28 Thread Jon Tegner
abled. Feel a bit lost here, and any hints on how to proceed with this are greatly appreciated! Thanks, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit

Re: [Beowulf] installint MPI 1.x on RHEL 5.4

2014-04-27 Thread Jon Tegner
Haven't followed this guide http://www.admin-magazine.com/HPC/Articles/Warewulf-Cluster-Manager-Master-and-Compute-Nodes but it certainly looks really good. /jon On 04/27/2014 07:08 AM, Chris Samuel wrote: On Sat, 26 Apr 2014 10:45:05 AM Bhabani Samantray wrote: I want to in

[Beowulf] mpitest between qlocgic and mellanox/infiniband

2014-02-23 Thread Jon Tegner
cards from different vendors in an "mpi environment", or am I missing something in the configuration? Thanks, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mo

Re: [Beowulf] anyone using SALT on your clusters?

2013-06-28 Thread Jon Tegner
this to be consistent I also guess that if your definition of the cluster is changed you have to update the "kickstart file" and reinstall everything (which is no big deal, but using salt it becomes an even lesser deal...). Regards, /jon ___ Beo

Re: [Beowulf] PXE boot with X7DWT-INF IB onboard card

2012-11-13 Thread Jon Tegner
o has compared the two? Regards, /jon On 11/13/2012 04:45 AM, Duke Nguyen wrote: > Thanks for all suggestions and comments. Looks like we will go for a > gigabyte switch and boot nodes over Gb. Not to mention that this > solution is cheaper than putting disks onto nodes, I prefer this optio

Re: [Beowulf] Strange error, gluster/ext4/zone_reclaim_mode

2012-08-30 Thread Jon Tegner
iterations. However, when performing this operation a second time (an extra "dummy operation") that was NOT that slow. Could this indicate that it has something to do with how the memory is handled? Also, we have used a very similar set up previously, but were all machines were

[Beowulf] Strange error, gluster/ext4/zone_reclaim_mode

2012-08-30 Thread Jon Tegner
tail -f file" doesn't get updated properly. Any help/hints would be greatly appreciated! Regards, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) vi

[Beowulf] Functionality of schedulers

2012-02-29 Thread Jon Tegner
has finished. Is this at all possible (we are using torque/maui, and I couldn't find this feature there)? Regards, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubs

Re: [Beowulf] personal HPC

2011-12-23 Thread Jon Tegner
Cool! Impressive to have taken it this far! What are the dimensions of the system? And the mainbord for the compute nodes, are you using mini-itx there? Regards, /jon On 12/22/2011 05:51 PM, Douglas Eadline wrote: > For those that don't know, I have been working > on a commodity

Re: [Beowulf] building Infiniband 4x cluster questions

2011-11-10 Thread Jon Tegner
kernel required for those drivers (which since I'm using CentOS means that I can only use CentOS-5.5). Would there be any disadvantages involved in instead use the stuff from the kernel/OFED directly? Regards, /jon ___ Beowulf mailing list, Beo

Re: [Beowulf] Westmere EX

2011-04-06 Thread Jon Forrest
y can build gcc and other large packages very quickly. The scientists who run single process simulations also like them but they're not real picky about how long it takes for something to run. They also generally spend close to no time at all optimizing anything. -- Jon Forrest Research Comp

Re: [Beowulf] Memory stress testing tools.

2010-12-09 Thread Jon Forrest
ow do you figure out which memory module to replace? -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___ Beowulf mailing list, Beowulf@be

Re: [Beowulf] Begginers question # 1

2010-10-05 Thread Jon Forrest
physical machine using VirtualBox. I call this Rocks-in-the-Box. You'd never want to use this method for production work but doing things this way makes it very easy to create test clusters. You could also use these test clusters to dabble in parallel programming. Cordially, -- Jon Fo

Re: [Beowulf] typical protocol for cleanup of /tmp: on reboot? cron job? tmpfs?

2010-08-20 Thread Jon Forrest
risk of using up too much RAM if a program gets out of hand writing to /tmp. Right. I don't think this is a good idea for scratch space for the reasons you mention. It does make sense for things like compilers and other programs that create very transient and small files. Cordially, --

Re: [Beowulf] what defines "enterprise class" hard drives?

2010-08-05 Thread Jon Forrest
ople base their opinions on the manufacturer's claims, and some people base their opinions on the famous papers from Google and CMU that came out a couple of years ago that described how very large numbers of drives really work. It's an interesting topic, no doubt. Cordially, -- Jon Forrest R

Re: [Beowulf] dollars-per-teraflop : any lists like the Top500?

2010-07-01 Thread Jon Forrest
lved in the research projects seemed like they would have promising commercial value, such as RAID, RISC, Postgres, and NOW. -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jl

Re: [Beowulf] dollars-per-teraflop : any lists like the Top500?

2010-07-01 Thread Jon Forrest
low us to accept the equipment. Things are different now, but space and people are still more expensive than most equipment. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jl

Re: [Beowulf] 48-Core X86_64 Compute Node - Good Idea?

2010-06-14 Thread Jon Forrest
x27;t come up with Twin boxes, I might be forced to follow your advice. I'm not concerned about sysadmin work, because I'm using Rocks. I'm more concerned about ending up in the Twilight Zone where things aren't as they appear. -- Jon Forrest Research Computing Support College o

[Beowulf] 48-Core X86_64 Compute Node - Good Idea?

2010-06-14 Thread Jon Forrest
come out but my problem is that I have money to spend that has to be spent soon, maybe before the Twin boxes come out. So, I'm trying to decide what to do. (I only want 1U boxes because I have to pay for rack space). Any advice? Cordially, -- Jon Forrest Research Computing Support College

[Beowulf] Best Way to Use 48-cores For Undergrad Cluster?

2010-05-06 Thread Jon Forrest
ent most of you run in, but it does present interesting issues. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___ Beowu

Re: [Beowulf] Building a Beowulf - Noob

2010-04-17 Thread Jon Tegner
Take a look at perceus, can be really easy, check www.infiscale.com/html/perceus_on_enterprise_linux_qu.html Richard Chang wrote: I am a bit new. Trying to build a cluster from ground up. I need to build a new 32 node cluster from ground up. Hardware has been decided, Nehalam based, but OS is

Re: [Beowulf] Building a Beowulf - Noob

2010-04-17 Thread Jon Forrest
are to create a cluster. Maybe later you'll find some commercial products that solve specific problems, but one of the nice things about modern clusters is that there's so much good quality free software available. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 1

Re: Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-14 Thread Jon Tegner
rt #, here’s what happens”, because it depends on a lot of > things. > > > On 4/14/10 1:12 AM, "Jon Tegner" <> wrote: > > > the max temp spec is not some arbitrary knob that the chip vendors > > &g

Re: Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-14 Thread Jon Tegner
> > the max temp spec is not some arbitrary knob that the chip vendors > choose out of spiteful anti-green-ness. I wouldn't be surprised to see > some > > > > > > Issue is not the temp spec of current cpus, problem is that it

Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-13 Thread Jon Tegner
Mark Hahn wrote: I find it strange with this rather large temp range, and 55 seems very low to my experience. Could they possibly stand for something else? Did not find any description of the numbers anywhere on that address. I think you should always worry about any temperature measured on a

Re: RE: [Beowulf] 96 cores in silent and small enclosure

2010-04-12 Thread Jon Tegner
On Apr 13, 2010 00:24 "Lux, Jim (337C)" wrote: > > -Original Message- > > From: > > [mailto:beowulf-boun...@beowulf.org] On Behalf Of Jon Tegner > > Sent: Monday, April 12, 2010 11:02 AM > > To: Mark Hahn > > Cc: > > Subject:

Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-12 Thread Jon Tegner
this rather large temp range, and 55 seems very low to my experience. Could they possibly stand for something else? Did not find any description of the numbers anywhere on that address. /jon "Whimpy" ?! ___ Beowulf mailing list, Beowulf@b

Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-11 Thread Jon Tegner
computer, but maybe that's just me? After some optimization (and a bit of CFD) I'm sure I could make it a bit smaller. Regards, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscriptio

Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-07 Thread Jon Tegner
more convenient. But even with air you can build small systems. Check our "third HTPC", which would be hard to build much smaller even with water-cooling (or oil for that matter). /jon Jonathan Aquilina wrote: sry for another post but i just got an idea. im not sure if you have see

Re: Re: [Beowulf] 96 cores in silent and small enclosure

2010-04-07 Thread Jon Tegner
sing the fans one can get adequate cooling in a smaller box (than what would be possible without fans). When I get the time (when?) I intend to do combined cfd/heat flow simulations of our designs (have a PhD in numerical analysis). Eventually we hope to market this. Regards, /jon

[Beowulf] 96 cores in silent and small enclosure

2010-04-07 Thread Jon Tegner
We (me and my brother) have been into silent computing, and clusters, for quite some time now. We just recently designed and built a unit equipped with 4 supermicro boards (H8DMT) and 8 cpus. In the actual unit the cpus are Opterons with 6 cores each, but it would be easy enough to switch to cpus w

Re: [Beowulf] test network link quality?

2010-04-02 Thread Jon Tegner
What about netpipe? www.scl.ameslab.gov/netpipe/ /jon David Mathog wrote: Is there a common method for testing the quality of a network link between two networked machines? This is for situations where the link works 99.99% of the time, but should work 99.9% of the time, with the

Re: [Beowulf] copying data between clusters

2010-03-05 Thread Jon Forrest
ou can buy a PCI card for not much money. Once USB 3 is ubiquitous this problem (e.g USB 2.0 vs eSATA) will go away. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@be

Re: [Beowulf] confidential data on public HPC cluster

2010-03-01 Thread Jon Forrest
nt page of the paper. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___ Beowulf mailing list, Beowulf@beowulf.org

Re: [Beowulf] Transient NFS Problems in New Cluster

2010-02-02 Thread Jon Forrest
is? Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Comp

[Beowulf] Transient NFS Problems in New Cluster

2010-02-02 Thread Jon Forrest
999308 errors:0 dropped:0 overruns:0 frame:0 TX packets:27468315 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:24225053296 (22.5 GiB) TX bytes:73313582546 (68.2 GiB) Interrupt:74 Base address:0x2000 Any advice on what to do?

Re: [Beowulf] Re: GPU Beowulf Clusters

2010-02-01 Thread Jon Forrest
es will have to be rewritten anyway, why write them in a language which would require purchasing yet another compiler? Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-

Re: [Beowulf] GPU Beowulf Clusters

2010-01-30 Thread Jon Forrest
On 1/30/2010 2:52 PM, "C. Bergström" wrote: Hi Jon, I must emphasize what David Mathog said about the importance of the gpu programming model. I don't doubt this at all. Fortunately, we have lots of very smart people here at UC Berkeley. I have the utmost confidence that t

Re: [Beowulf] GPU Beowulf Clusters

2010-01-30 Thread Jon Forrest
at the s1070 is ~6k$ so you are talking at most two to three machines here with your budget. Ha, ha!! ~$6K should get me two compute nodes, complete with graphics cards. I appreciate everyone's comments, and I welcome more. Cordially, -- Jon Forrest Research Computing Support College of

[Beowulf] GPU Beowulf Clusters

2010-01-28 Thread Jon Forrest
CPUs - only on the GPUs). Even if GPUs can be time shared, given the expense of copying between main memory and GPU memory, sharing GPUs among several processes will degrade performance. Are there any other issues I'm leaving out? Cordially, -- Jon Forrest Research Computing Support College of C

Re: [Beowulf] clustering using xen virtualized machines

2010-01-27 Thread Jon Forrest
ed cluster might be easier to deal with from a central management point of view. -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu _

Re: [Beowulf] clustering using xen virtualized machines

2010-01-27 Thread Jon Forrest
caused by the virtualization is a factor, but it's decreasing as time goes on due to better hardware support of virtualization and cleverer software. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-14

Re: [Beowulf] hardware RAID versus mdadm versus LVM-striping

2010-01-19 Thread Jon Forrest
D (if any) justify its expense. Of course, in any production system you'll want a few extra RAID cards lying around just in case. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460

Re: [Beowulf] Forwarded from a long time reader having trouble posting

2009-12-03 Thread Jon Forrest
08:41:08 frank kernel: [] :xfs:xfs_create+0x237/0x45c Sep 28 08:41:08 frank kernel: [] :xfs:xfs_attr_get+0x8e/0x9f Sep 28 08:41:08 frank kernel: [] :xfs:xfs_vn_mknod+0x144/0x215 Sep 28 08:41:08 frank kernel: [] vfs_create+0xe6/0x158 Cordially, -- Jon Forrest Research Computing Support College of

Re: [Beowulf] Low cost Hi Density - Nehalem clusters

2009-11-24 Thread Jon Forrest
ed on the dual-motherboard Supermicro cases. Since each motherboard can hold 2 processors, and each AMD Istanbul processor has 6-cores, I can get 24 cores per rack unit. That's pretty dense. I believe that SuperMicro also makes similar motherboards for Intel processors. Check it out! Cordial

Re: [Beowulf] How Would You Test Infiniband in New Cluster?

2009-11-17 Thread Jon Forrest
I'll have to figure out how to force IB when using OpenMPI. -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___ Beowulf m

Re: [Beowulf] How Would You Test Infiniband in New Cluster?

2009-11-17 Thread Jon Forrest
the strange way the OFED was installed, I can't easily run over just ethernet. Thanks for your help -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu

Re: [Beowulf] How Would You Test Infiniband in New Cluster?

2009-11-17 Thread Jon Forrest
implementation, I'd try to get within 30-40% of advertised latency numbers. For those of us who aren't familiar with IB utilities, could you give some examples of the commands you'd use to do this? Thanks, Jon ___ Beowulf mailing list, Beow

[Beowulf] How Would You Test Infiniband in New Cluster?

2009-11-17 Thread Jon Forrest
about IB. How would you test your IB network to make sure all is well? Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___

Re: [Beowulf] Mature open source hierarchical storage management

2009-10-23 Thread Jon Forrest
University Ingres database for this. When the database became corrupt this was very embarrassing since I was using this HSM system for work that the Postgres database group was doing. This was the same group that had originally developed Ingres. I hope HSMs have become better since then. Cordial

Re: [Beowulf] Small form computers as cluster nodes - any comments about the Shuttle brand ?

2009-08-08 Thread Jon Tegner
e for ClusterMonkey, and I'll fill in missing details on that forum. Regards, /jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.o

Re: [Beowulf] Resolved - Approach For Diagnosing Heat Related Failure?

2009-07-28 Thread Jon Forrest
d the fact that my office is cooler than our computer room - this is a sad fact about the financial state of the Univ. of Calif. these days. Anyway, thanks for all the suggestions. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkele

[Beowulf] Approach For Diagnosing Heat Related Failure?

2009-07-21 Thread Jon Forrest
nodes are working fine in the computer room. I'm not convinced the problem is actually the memory. Other than opening the node to spray cooling liquid when it's in the warm room, what approach would you use to figure out which component(s) is(are) failing? Cordially, -- Jon Forrest Resear

Re: [Beowulf] noobs: what comes next?

2009-06-24 Thread Jon Tegner
Hearns, John wrote: I would guess you are looking are looking at using OpenFOAM for There is also overture https://computation.llnl.gov/casc/Overture/ using overlapping grids. Complete with gridgenerator and a bunch of solvers. Excellent software! /jon

Re: [Beowulf] noobs: what comes next?

2009-06-22 Thread Jon Forrest
l times while you're learning. This is normal. Once you have more knowledge, and you've tried running the actual program you want to run in the future, then start thinking about the best hardware to get. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall Uni

Re: [Beowulf] Moores Law is dying

2009-04-14 Thread Jon Forrest
of "C" in physics ... you may approach it asymptotically, but never actually get there ... but unlike in physics, there isn't really an underlying reason why you might not get there. The underlying reason in this case is complexity. Jon ___

Re: [Beowulf] Moores Law is dying

2009-04-14 Thread Jon Forrest
good thing, because then all the benefits of caching would kick in. There would be no cache coherence overhead since text is read-only. Why is this a bad thing? -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460

Re: [Beowulf] Moores Law is dying

2009-04-14 Thread Jon Forrest
ch-only? I did my test for both Alpha OSF/1 a while back, and modern Intel x86. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu __

Re: [Beowulf] Moores Law is dying

2009-04-14 Thread Jon Forrest
alize that this limit exists, and unless we get much smarter, isn't likely to go away. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___

Re: [Beowulf] OT: Windows tex editors/processors

2009-04-06 Thread Jon Forrest
out to me that I misread Geoff's original posting. I thought he was asking for a "text" editor, not a "tex" editor. I apologize for the bogus reply. Jon ___ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin

Re: [Beowulf] OT: Windows tex editors/processors

2009-04-06 Thread Jon Forrest
though my job is mainly to manage Unix machines. The "vim" editor, which is what you get on Linux and MacOS, has an excellent implementation for Windows. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Jon Forrest
x27;t talking about vendors supporting the Linux kernel. I was talking about independent software projects. One such example is Eclipse. It once was totally IBM and now it's independent. And there are the various projects run by the Apache Foundation. Could SGE find a home outside of Sun? -- J

Re: [Beowulf] Rackable / SGI

2009-04-03 Thread Jon Forrest
easy but that's another issue. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu ___ Beowulf mailing list, Beowulf@beow

Re: [Beowulf] SGI and Sun: In Memoriam

2009-04-01 Thread Jon Forrest
a clear OS direction. As we know, it only got worse. To their credit, Sun has lasted longer than DEC, which had an even more severe lack of OS direction. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460

Re: [Beowulf] switch selection

2009-03-05 Thread Jon Forrest
ld be to not pay too much attention to the subjective reviews you'll see here, including mine. Instead, I'd suggest finding and understanding a switch benchmark program that gives a more objective evaluation. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 1

[Beowulf] WD 2TB Disk Drives - Enterprise or Consumer?

2009-01-27 Thread Jon Forrest
rding head never touches the disk media." (from AnandTech's website). I wonder if these drives will come out in both enterprise and consumer versions. Note especially the mention of vibration reduction. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hal

Re: [Beowulf] Consumer vs. Enterprise Hard Drives in Clusters

2009-01-23 Thread Jon Forrest
1U with a ton of fans the extra $25 is worth it. If there are real differences between the drives then this would be an easier decision. There doesn't appear to be a consensus, however, that the differences in the field are significant. Cordially, -- Jon Forrest Research Computing Support C

[Beowulf] firmware bricks seagate hard drives

2009-01-22 Thread Jon Aquilina
i know there is another topic going around in relation to enterprise verse consumer hard drives. i thought i would bring this to everyones attention. http://www.insidetech.com/news/articles/3843-firmware-update-bricks-barracuda-720011-hdds?referral=IT_nlet_20090122 -- Jonathan Aquilina _

Re: [Beowulf] Consumer vs. Enterprise Hard Drives in Clusters

2009-01-21 Thread Jon Forrest
Greg Lindahl wrote: On Wed, Jan 21, 2009 at 05:21:25PM -0800, Jon Forrest wrote: As a wise man once said, "Why pay more?". A wise man once told me to not price weird stuff at newegg. An even wiser man once told me that Seagate 1TB drives aren't weird stuff. They're the

Re: [Beowulf] Consumer vs. Enterprise Hard Drives in Clusters

2009-01-21 Thread Jon Forrest
Greg Lindahl wrote: On Wed, Jan 21, 2009 at 04:19:55PM -0800, Jon Forrest wrote: The last time I checked, the enterprise drives were ~25% more expensive than the consumer drives. This difference might have changed since then. Last time I checked, it was +$10 on a $300 drive. I bought the

[Beowulf] Consumer vs. Enterprise Hard Drives in Clusters

2009-01-21 Thread Jon Forrest
is concerned, my life wouldn't have been improved if I had spent the extra money for the enterprise drives. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall University of California Berkeley Berkeley, CA 94720-1460 510-643-1032 jlforr...@berkeley.edu __

Re: [Beowulf] RE: Capitalization Rates - How often should you replace a cluster? (resent - 1st sending wasn't posted ).

2009-01-21 Thread Jon Aquilina
well my apologies to all who are following this thread i took it off topic. but i have been enlightened so now i know the reasoning behind replacement of older hardware in a cluster On Wed, Jan 21, 2009 at 7:04 AM, Mark Hahn wrote: > Think about it: if you pay 1/3 the cost of a new node per yea

Re: [Beowulf] RE: Capitalization Rates - How often should you replace a cluster? (resent - 1st sending wasn't posted ).

2009-01-19 Thread Jon Aquilina
so basically all those old machines end up on ebay On Tue, Jan 20, 2009 at 8:35 AM, Greg Lindahl wrote: > On Tue, Jan 20, 2009 at 08:14:35AM +0100, Jon Aquilina wrote: > > > in all honesty is there a need really to replace the cluster. why not > just > > add onto it? >

Re: [Beowulf] RE: Capitalization Rates - How often should you replace a cluster? (resent - 1st sending wasn't posted ).

2009-01-19 Thread Jon Aquilina
in all honesty is there a need really to replace the cluster. why not just add onto it? On Mon, Jan 19, 2009 at 2:40 AM, Robert G. Brown wrote: > On Sun, 18 Jan 2009, Greg Lindahl wrote: > > On Fri, Jan 16, 2009 at 08:10:43PM -0500, Mark Hahn wrote: >> >>> The question was raised as "When shoul

Re: [Beowulf] Multisocket mainboard hardware problems

2009-01-16 Thread Jon Aquilina
cted here. > Thanks for all > francesco > > On Fri, Jan 16, 2009 at 8:10 PM, Jon Aquilina > wrote: > > in that case you need to contact them by phone and request an rma > > > > On Fri, Jan 16, 2009 at 3:48 PM, Francesco Pietra > > > wrote: > >>

Re: [Beowulf] KVM advice

2009-01-16 Thread Jon Forrest
cables really mess things up. Plus, they're expensive. For modern clusters with pretty reliable hardware, I just use a crash cart or equivalent. I don't need to do this very often so it works out OK. Cordially, -- Jon Forrest Research Computing Support College of Chemistry 173 Tan Hall Uni

Re: [Beowulf] HPC Market Question

2009-01-16 Thread Jon Aquilina
i havent done much digging in the transistor count but from people i have talked to in regards to the i7s the i7s are true quad cores im not sure what that means for the core 2 quads that came before the i7. On Fri, Jan 16, 2009 at 2:01 PM, Mark Hahn wrote: > normally according to moores law new

Re: [Beowulf] HPC Market Question

2009-01-15 Thread Jon Aquilina
normally according to moores law new technology is released every 18 months. right now there are the i7's which have just been released. On Wed, Jan 14, 2009 at 9:01 PM, Toon Moene wrote: > Douglas Eadline wrote: > > Fellow HPC types: >> >> I have been running a micro-poll over at >> Linux Maga

Re: [Beowulf] Multisocket mainboard hardware problems

2009-01-15 Thread Jon Aquilina
try running memtest+86 its a cd that you boot on to that tests the memory leave it running for a few hrs to makes sure it is the ram or sockets. i am not sure about how to test the cpu. On Tue, Jan 13, 2009 at 10:26 AM, Francesco Pietra < francesco.pie...@accademialucchese.it> wrote: > Hi: > > I

Re: [Beowulf] Not all cases need be metal

2008-10-27 Thread Jon Aquilina
i 2nd that On Mon, Oct 27, 2008 at 4:07 PM, Kyle Spaans < [EMAIL PROTECTED]> wrote: > On Fri, Oct 24, 2008 at 12:05:24AM -0400, Sebastian Hyde wrote: > > http://www.instructables.com/id/Lexan-Computer-Case/ > > Oh, for sure. "Kids" like me have been putting acrylic windows in our PC > cases for y

Re: [Beowulf] Security issues

2008-10-25 Thread Jon Aquilina
even if you are using a default kernel how often do u hear of a kernel default or not getting hacked? On Fri, Oct 24, 2008 at 7:15 PM, Leif Nixon <[EMAIL PROTECTED]> wrote: > "B. Vincent Diepeveen" <[EMAIL PROTECTED]> writes: > > > Now you post here a big story on how your Rocks got hacked. Do i

Re: [Beowulf] Re: Active directory with Linux

2008-10-25 Thread Jon Aquilina
sry for repost didnt hit reply to all my question though is what is the best way in the linux world to get windows machines to join a linux domain which is being hosted by bind On Fri, Oct 24, 2008 at 3:01 PM, Dave Love <[EMAIL PROTECTED]> wrote: > Prentice Bisbal <[EMAIL PROTECTED]> writes: > >

Re: [Beowulf] Security issues

2008-10-24 Thread Jon Aquilina
true but if there is something that isnt in there i would be more then willing to add it to the repo. On Fri, Oct 24, 2008 at 1:49 PM, Carsten Aulbert <[EMAIL PROTECTED] > wrote: > Hi Jon > > Jon Aquilina wrote: > > but why waste time sifting through all 26,000+ pkgs in the

Re: [Beowulf] Security issues

2008-10-24 Thread Jon Aquilina
but why waste time sifting through all 26,000+ pkgs in the repos when u can have a distro with repos focused on clustering pkgs? On Fri, Oct 24, 2008 at 1:19 PM, Tim Cutts <[EMAIL PROTECTED]> wrote: > > On 24 Oct 2008, at 11:26 am, Alan Ward wrote: > > >> >> Kubuntu-derived? Would Debian not be a

Re: [Beowulf] Security issues

2008-10-24 Thread Jon Aquilina
>>my response Im not goign to turn this into a distro war everyone is entitled to their opinions and preferences. that is not the problem packaing or repackaing everything. are there any debian based distros out there? >> from john hearns Oooh, here we go again. Distro wars :-) J

Re: [Beowulf] Security issues

2008-10-24 Thread Jon Aquilina
and programmers to help me out seeing as i dont have a cluster. On Fri, Oct 24, 2008 at 10:55 AM, Kilian CAVALOTTI < [EMAIL PROTECTED]> wrote: > Jon Aquilina wrote: > >> did this person use the ssh exploit that red hat found a few months ago? >> > > Apparently not. F

Re: [Beowulf] Security issues

2008-10-24 Thread Jon Aquilina
did this person use the ssh exploit that red hat found a few months ago? On Fri, Oct 24, 2008 at 9:22 AM, Nifty niftyompi Mitch < [EMAIL PROTECTED]> wrote: > On Fri, Oct 24, 2008 at 05:39:17AM +0200, B. Vincent Diepeveen wrote: > . > > hi Joe, > > > > Thanks for your post. Very interesting to

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