Monday, August 15, 2005

Go Big Red!


Our compute nodes arrived last week (while I was on vacation)).
condor_status
Machines Owner Claimed Unclaimed Matched Preempting

X86_64/LINUX 260 4 0 256 0 0

Total 260 4 0 256 0 0

1.9T 263G 1.6T 15% /home
256 computer CPU cores, doing nothing right now.

3 Comments:

Blogger The LQ said...

Doing. Nothing. And was there a specific project to which these were to be allocated, or did they do this just to keep the depatment happy? And in either case, why is this node just taking up space?

10:19 AM  
Blogger Carl said...

These nodes are part of the CMS (Compact Muon Solenoid) experiment. These machines are currently on the Open Science Grid, so if you have a DOE Grid Cert, feel free to use some cycles.

(Good luck getting a DOE grid cert.
I got mine by talking straight to the DOE grid cert authority at FNAL on the phone AFTER the head of the US-CMS computing went and told him it was ok for me to have one.)

This machine is idle right now only because its just come on line (Friday) and no one really knows its available for 'opportunistic' use. And really, no one knows how to use the grid interfaces (well, I do, but not to do anything useful with CMS analysis code, only Monte Carlo production code). I'd bet there are fewer than a dozen people in the US that can make use of the open science grid, this will change as it matures.

Only I and a couple of others have interactive accounts. I ran a bunch of test jobs Friday night. As we start giving interactive accounts to the general research user on campus the usage will skyrocket.

This is currently the fastest cluster on campus. I'd wager the fastest cluster in Nebraska.

As much as we appear to do so, the University doesn't just drop $300K to 'keep the department happy'. This isn't even a department machine, its owned by the CMS group and the CSE department jointly, purchased with CMS grant money.

I'll bet by this time next week jobs will be lined up in the queue to get CPU time.

1:09 PM  
Blogger The LQ said...

Carl,
I'm sure it's happened just like you said, and by now you're logging a horrendous job queue. As for a DOE cert, don't look at me. I have my hands full in a completely other field.
I found that listening to terminally happy Hawaiian music helps calm the frenzied researcher. Like John Gregg, Sr. says, "Have a Hapa day!" :)
jonathon

11:01 PM  

Post a Comment

<< Home