Posts by frankhagen
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1) Message boards : Unix/Linux : Ubuntu 12.04 amd64 : Computation error (Message 13886)
Posted 2149 days ago by frankhagen
Since the update/upgrade to Ubuntu 12.04 LTS (available since 27 April 2012), mini_collatz 2.02 is returning all work unit as computation error.

same over here at numerous projects:

process exited with code 193 (0xc1, -63)
Stack trace (11 frames):


definitely not a collatz-problem..
2) Message boards : Number crunching : Multi-Threaded Collatz App (Message 12631)
Posted 2426 days ago by frankhagen
Moo uses a multi-threaded app too and some people complain bitterly that they don't like it, me I don't much care as it seems to give me twice the credits while using twice the resources.

MOO (same goes for DNECT) is not using a native boinc app but the wrapper to run the client. in fact this thing has a lot of the options people on the boinc-side would like, but currently there is no way to get boinc to use them.

3) Message boards : Cafe : Last one to post here wins (v5) (Message 12552)
Posted 2448 days ago by frankhagen
Me three ;-)

I am making this unanimous, I WIN!!

Nope, I win.

you won..
4) Message boards : Number crunching : Server Status (Message 12491)
Posted 2461 days ago by frankhagen
Photo of me taken at The Tail of the Dragon, Deal's Gap, NC -- June 18, 2011


you just managed to escape that freaky thing chasing you.. ;)
5) Message boards : News : Database Error Repaired and New UPS Installed (Message 12420)
Posted 2484 days ago by frankhagen
Since the system was down to repair the database anyway, I installed the new UPS at the same time so hopefully all the power outage woes are behind us now.

well done!

probably you'd have been fine by simply replacing the batteries. so you might consider this and keep the old one in spare..
6) Message boards : Number crunching : Cuda 3.2 ili Cuda 4 app for Nvidia? (Message 12415)
Posted 2484 days ago by frankhagen
if you check the release notes:

you'll see they have done a lot to improve FFT-speed.

if those other improvements will speed up simple math like 3x+1?

hard to tell - just give it a try..
7) Message boards : Number crunching : GPU compute capability list (Message 8752)
Posted 2809 days ago by frankhagen
The 295 crunches each task in 31 minutes
The 280 crunches each task in 33 minutes

Anyone with similar results??

sounds a little slow - my GTS250 (800/1100) needs about 33 minutes using the 2.04 app...
8) Message boards : Number crunching : Issue getting new tasks (Message 5669)
Posted 2979 days ago by frankhagen
BOINC does not to a good job with CPU vs. GPU scheduling.

in fact it does everything but the things we expect it to do.
9) Message boards : Cafe : Last one to post here win! (Message 4833)
Posted 3001 days ago by frankhagen
Is it okay to drink ZOMBIES while I win??

that's okay - i'll stick to my bushmills 21.;)
10) Message boards : Number crunching : Server Status (Message 4231)
Posted 3024 days ago by frankhagen
The animal lovers will be happy to know that no deer were harmed by me during this weekend.

yeah, i do love them - my favorite form of them is BRATEN..
11) Message boards : Number crunching : Oustanding credits (Message 3877)
Posted 3037 days ago by frankhagen
You won't lose them, it may take awhile but you'll get them eventually.

but it might take quite a while like this one:
12) Message boards : Number crunching : Are you ready? (Message 3581)
Posted 3049 days ago by frankhagen

Yep, MW will be down for some days and gpugrid doing some ati 4850+ testing.

Don't forget SETI ;)

I forgot SETI 4 Years ago ... :P

SET What...? :P

as for YETI i got another idea about a new credit system: credits granted for SOMETHING found. <roflmao>
13) Message boards : Number crunching : Proposed new BOINC credit system (Message 3580)
Posted 3049 days ago by frankhagen
I run the 5.10.45 client on a class of workstations -- any XP or 2000 workstation without a supported GPU. I have seen no payoff (and some downside) to moving into the 6.x client set for that combination.

me2 - not many projects around (except the GPU-ones) which require 6.xx.xx..
14) Message boards : Number crunching : WU not validating? (Message 3563)
Posted 3049 days ago by frankhagen
now i checked, and also found one:
15) Message boards : Number crunching : Server Status (Message 3497)
Posted 3051 days ago by frankhagen
A reasonable position to take, as the work contributes to the science. It is only those 2.05 WU results that cannot be validated and cause the server problems that need the wrapping code to stop them. At least that is the way I understood your approach was aimed.y, these good 2.05 results will come in within days as the wingmen report, and the problem will be history.

this might take quite a while - my oldest pending result was reported on 13 Aug 2009 9:08:42 UTC..
16) Message boards : Number crunching : Server Status (Message 3447)
Posted 3054 days ago by frankhagen
mysql is throwing errors again, transitioner is stuck.. :(
17) Message boards : Number crunching : Proposed new BOINC credit system (Message 3446)
Posted 3054 days ago by frankhagen
Just to throw out some numbers, on MW a typical GPU reaches about 85% of efficiency (which is not exactly the ratio of peak flops, that's only ~70% ;), nvidia GPUs maybe even slightly more (the efficiency is not the problem, peak performance is). This compares to about 50% on a Core i7 (hyperthreading saves the day) and just about 35% on a typical CPU (all running the vectorized SSE3 version). The good thing with GPUs is that they offer you an effective instruction latency of just a single cycle for all operations when dealing with heavily compute bound parallel problems.

yup - but then there is the guy who's understanding ends where a flop is a flop.
and we all know there are apps around which use loads of them with oh so little progress - simply because they are using compilers which never where made for things like crunching..
18) Message boards : Number crunching : Server Status (Message 3380)
Posted 3056 days ago by frankhagen
and down again.. :((

about time to send those 2.05 results to the bin..
19) Message boards : Number crunching : Kick the Validator plz (Message 3377)
Posted 3056 days ago by frankhagen
If a certain user from "across the pond" who pronounces schedule without the 'k' sound, and who's name starts with "D" were to stop using the 2.05 ATI app, it would run much smoother. You'd think he'd get the hint after being emailed about his misconfigured host and also having at least a dozen of his results deleted and no credit given in the last couple days because they crashed the validator. I'm at the opint now where I'm kind of hoping he doesn't upgrade before Friday so that the validator will invalidate every WU he returns.

you could simply block him NOW..
20) Message boards : Number crunching : Proposed new BOINC credit system (Message 3374)
Posted 3056 days ago by frankhagen
Others already have a scheme which is low enough not to embarass SETI (ie Berkeley, ie DA).

i'm around for quite a while now, and this is the one and only cause i can see for this events.

anyone ever seen the krazy kredit kops complain about a project paying less than YETI?

how about paying credit for finding something? <beg>

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