Re: [Beowulf] cloudy HPC?

2014-01-30 Thread James Cuff
Given prior art, I'm totally taking the fifth on this one ;-) hehehe! http://marc.info/?l=beowulf&m=136219891020783&w=1 But all joking aside, I'm still super keen to understand all of this at a much deeper level, certainly within the .edu space. BTW: Chris Loken did an awesome job of explaining

Re: [Beowulf] Mutiple IB networks in one cluster

2014-01-30 Thread Alex Chekholko
Hi Prentice, Today, IB probably means Mellanox, so why not get their pre-sales engineer to draw you up a fabric configuration for your intended use case? Certainly you can have a fabric where each host has two links, and then you segregate the different types of traffic on the different links. B

[Beowulf] Mutiple IB networks in one cluster

2014-01-30 Thread Prentice Bisbal
Beowulfers, I was talking to a colleague the other day about cluster architecture and big data, and this colleague was thinking that it would be good to have two separate FDR IB clusters within a single cluster: one for message-passing, and the other purely for data movement. I'm a bit skepti

Re: [Beowulf] cloudy HPC?

2014-01-30 Thread Jörg Saßmannshausen
Hi Mark, interesting thread, specially as I wanted to ask something similar. We are currently looking here into the possibility to do an off-site data centre for ??? (we don't know yet) and we also have to build a new data centre as the old one is in the way of a to be build (?) train line. A

Re: [Beowulf] cloudy HPC?

2014-01-30 Thread Mark Hahn
Given prior art, I'm totally taking the fifth on this one ;-) hehehe! well, I notice in that old thread, you did not explain how your EC2 config differs from the 66% worse-performing "internal kit". it's a claim that falls into the same category as cold fusion. (not impossible, but would be si

[Beowulf] cloudy HPC?

2014-01-30 Thread Mark Hahn
Hi all, I would be interested to hear any comments you have about delivering HPC services on a "cloudy" infrastructure. What I mean is: suppose there is a vast datacenter filled with beautiful new hosts, plonkabytes of storage and all sitting on the most wonderful interconnect. One could run