[Beowulf] Audio simulation as an example of demanding computational tasks

In the "Mark Hahn's Beowulf/Cluster/HPC mini-FAQ . . ." thread I gave some examples of why acoustic modelling (simulating vibration in air and/or the bodies and strings of musical instruments) can be computationally extremely demanding: http://www.beowulf.org/pipermail/beowulf/2012-November/0303

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

On 11/5/12 5:16 PM, "Vincent Diepeveen" wrote: >Jim as someone who produced games, this is not how it works for most >movies/animations/commercials where graphics work is needed. > >Note that most movies get editted as well in the same way (each >nation usually has different requirements). > >F

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

Jim as someone who produced games, this is not how it works for most movies/animations/commercials where graphics work is needed. Note that most movies get editted as well in the same way (each nation usually has different requirements). First of all - the budget is rather tiny. So that means

Re: [Beowulf] Mark Hahn's Beowulf/Cluster/HPC mini-FAQ for newbies & some further thoughts

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 05/11/12 20:02, Mark Hahn wrote: >> For serious work, the cluster and its software needs to survive >> power outages, > well, it's a cost-benefit tradeoff. my organization has no power > protection on any compute nodes, though we do UPSify the sto

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

What I find interesting (and which is characteristic of this application space) is the sort of bimodal requirement: 1) High performance workstation with bespoke software that the digital artist uses 2) A render farm to grind out the final product. (quite the EP task, in general) Th

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

IIRC, ScaleMP is another distributed shared memory implementation, and both software and hardware (SGI NUMALink machines?) implementations are more expensive and less fault tolerant than shared nothing nodes managed by some sort of cluster software. Since rendering is mostly an embarrassingly para

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

CJ, This article is from 14 years ago, but it might be relevant to your situation. It describes how Digital Domain used a Linux 'render farm' to do the GCI for Titanic. I haven't read this article in 14 years, so I'm a little fuzzy on the details, but I think you might learn something useful

Re: [Beowulf] ECC

We use the NVML API from to set & check the GPU ECC settings & statistics - and in fact the last major release of OGS/GE shipped with a load sensor that reports the statistics to the qmaster. https://developer.nvidia.com/nvidia-management-library-nvml Rayson =

Re: [Beowulf] ECC

Am 05.11.2012 um 18:23 schrieb Douglas Eadline: > >> Am 05.11.2012 um 17:50 schrieb Douglas Eadline: >> >>> --snip-- >>> > > More interesting is the ECC discussion. > > ECC is simply a requirement IMHO, not a 'luxury thing' as some > hardware engineers see it. D

Re: [Beowulf] ECC

> Am 05.11.2012 um 17:50 schrieb Douglas Eadline: > >> --snip-- >> More interesting is the ECC discussion. ECC is simply a requirement IMHO, not a 'luxury thing' as some hardware engineers see it. >>> >>> Depends on your computational model. Would you rather spend money o

Re: [Beowulf] ECC

On 11/5/12 8:50 AM, "Douglas Eadline" wrote: > >--snip-- > >>> >>>More interesting is the ECC discussion. >>> >>>ECC is simply a requirement IMHO, not a 'luxury thing' as some >>>hardware engineers see it. >> >> Depends on your computational model. Would you rather spend money on >>ECC >> or o

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

> > > From: CJ O'Reilly mailto:supa...@gmail.com>> > Date: Saturday, November 3, 2012 3:47 PM > To: Mark Hahn mailto:h...@mcmaster.ca>> > Cc: "beowulf@beowulf.org" > mailto:beowulf@beowulf.org>> > Subject: Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf -

Re: [Beowulf] ECC

Am 05.11.2012 um 17:50 schrieb Douglas Eadline: > --snip-- > >>> >>> More interesting is the ECC discussion. >>> >>> ECC is simply a requirement IMHO, not a 'luxury thing' as some >>> hardware engineers see it. >> >> Depends on your computational model. Would you rather spend money on ECC >>

Re: [Beowulf] ECC

--snip-- >> >>More interesting is the ECC discussion. >> >>ECC is simply a requirement IMHO, not a 'luxury thing' as some >>hardware engineers see it. > > Depends on your computational model. Would you rather spend money on ECC > or on more processors? > ECC comes at a cost in speed as well. Th

Re: [Beowulf] Digital Image Processing via HPC/Cluster/Beowulf - Basics

I m a little late to these conversions, had some difficulty getting electrons moving in the wires to and from my house last week -- a hurricane thing. In any case a few background items, some that may already been mentioned: I was hired by AMD and Sun to write a short booklet called "HPC for Dum

Re: [Beowulf] Mark Hahn's Beowulf/Cluster/HPC mini-FAQ for newbies & some further thoughts

To do this properly, and generate a realistic reverberation field, would also involve frequency response behaviour or the walls, and most likely many more walls. To get realistic decays involving fiftieth-order or hundredth-order reflections, the number of paths to simulate (per sound source) wou

Re: [Beowulf] Mark Hahn's Beowulf/Cluster/HPC mini-FAQ for newbies & some further thoughts

Hi Mark and Jim, Thanks for reading my message and responding so informatively. Regarding music synthesis, Mark wrote: > OTOH, I can't really imagine how music synthesis could use enough > compute power to keep more than a few cores busy, no matter what > programming model you choose. That may

[Beowulf] Do theoretical FLOPs matter for real application´s performance ?

Hello folks, I would like to share with this select newsgroup the latest work I have done. Feel free to comment openly (I woundnt expect less) your thoughts. Should you want to know more, I will be at SC12, including the Beowulf Bash party. PDF file: http://www.hpcadvisorycouncil.com/events/2012/

Re: [Beowulf] Mark Hahn's Beowulf/Cluster/HPC mini-FAQ for newbies & some further thoughts

thanks for your kind comments. > of specific clusters. I couldn't easily find a FAQ suitable for people > with general computer experience wondering what they can and can't do, > or at least what would be wise to do or not do, with clusters, High heh, I guess so. then again, it's also pretty o