Posts by frankhagen

41) Message boards : Number crunching : abort? (Message 486)
Posted 10 Mar 2012 by frankhagen
Post:
It runs 4 tasks at the same time.


if you want to finish 2 of them, kill those other 2, and set boinc not to request new work. as i said, they will definitely run a lot faster, but if they'll finish in a week - hard to tell.


However, for what it's worth, it runs completely and directly on solar power. It only needs 15W to run, so in terms of energy efficiency, it is very good.Total computing power is not exactly great.


i definitely did not want to critize you - it's just too tough of a job for that host. at least as long as the default deadline is not extended.
but you should be able to run the other app - "Get Bounded Decics".

i'd limit boinc to use only 50% of processors on that host anyway...


42) Message boards : Number crunching : abort? (Message 484)
Posted 10 Mar 2012 by frankhagen
Post:
The tasks have been running for about 168 hours and reached about 57 %.
They might need another 7 days or so.
(Proc. atom d510, ubuntu 64 bit)


that's a really slow host and for the worse you probably did not disable HT.

way too slow for running bound decics with the current deadline.

you might be able to save 2 of them by suspending everything else, but that's just a guess..
43) Message boards : Number crunching : FUBAR! (Message 463)
Posted 9 Mar 2012 by frankhagen
Post:
Not sure why it's doing that this time. I restarted the project just for good measure. Please let me know if it continues to behave this way, so I can look into this further.



works - for now..
44) Message boards : Number crunching : FUBAR! (Message 462)
Posted 9 Mar 2012 by frankhagen
Post:
If you double the deadline you'll wait twice as long for the first result to return but once the ball gets rolling the results come back just as quickly ....

Agree totally about the flow rate, but a long pipeline increases the number of tasks in flight. Fot some projects, that has a significant impact on the server specification - storage size requirement for both the database and workunit data files. But the data files here won't be a major problem...


nope - 4 weeks deadline for getdecis should be fine and be nice even for part time crunchers.
45) Message boards : Number crunching : FUBAR! (Message 456)
Posted 9 Mar 2012 by frankhagen
Post:
and again, the silly sheduler shows work is available, but it refuses to hand them out:

09.03.2012 15:58:20 | NumberFields@home | Sending scheduler request: To fetch work.
09.03.2012 15:58:20 | NumberFields@home | Requesting new tasks for CPU
09.03.2012 15:58:22 | NumberFields@home | Scheduler request completed: got 0 new tasks
09.03.2012 15:58:22 | NumberFields@home | No tasks sent
09.03.2012 15:58:22 | NumberFields@home | No tasks are available for Get Decics with Bounded Discriminant

well, then another project will profit..
46) Message boards : Number crunching : FUBAR! (Message 453)
Posted 8 Mar 2012 by frankhagen
Post:
May I ask, why you prefer the GetBoundedDecics app? Is it the shorter run times?


exactly.

Because hourly credit is the same for both. I understand if you don't like waiting days to finish a WU, which takes even longer with an older (and slower) CPU.


that's not the problem. i am currently running most of them on a laptop which has only a few hours of spare time for boinc.
47) Message boards : Number crunching : FUBAR! (Message 449)
Posted 5 Mar 2012 by frankhagen
Post:
i only want to run Get Bounded Decics.

i am not getting a single WU for days now.

should i stay or should i go?
48) Message boards : Number crunching : ARIZONA - we got a problem.. (Message 440)
Posted 28 Feb 2012 by frankhagen
Post:
stuck again:

28.02.2012 14:42:05 | NumberFields@home | Requesting new tasks for CPU
28.02.2012 14:42:06 | NumberFields@home | Scheduler request completed: got 0 new tasks
28.02.2012 14:42:06 | NumberFields@home | No tasks sent
28.02.2012 14:42:06 | NumberFields@home | No tasks are available for Get Decics with Bounded Discriminant
49) Message boards : Science : Project duration (Message 437)
Posted 15 Feb 2012 by frankhagen
Post:
like SIMAP?

http://boincsimap.org/boincsimap/batchmonitor.php

50) Message boards : Number crunching : ARIZONA - we got a problem.. (Message 427)
Posted 27 Dec 2011 by frankhagen
Post:
27.12.2011 20:43:37 | NumberFields@home | Requesting new tasks for CPU
27.12.2011 20:43:38 | NumberFields@home | Scheduler request completed: got 0 new tasks
27.12.2011 20:43:38 | NumberFields@home | No tasks sent
27.12.2011 20:43:38 | NumberFields@home | No tasks are available for Get Decics with Bounded Discriminant
27.12.2011 20:49:03 | NumberFields@home | Sending scheduler request: To fetch work.
27.12.2011 20:49:03 | NumberFields@home | Requesting new tasks for CPU
27.12.2011 20:49:05 | NumberFields@home | Scheduler request completed: got 0 new tasks
27.12.2011 20:49:05 | NumberFields@home | No tasks sent
27.12.2011 20:49:05 | NumberFields@home | No tasks are available for Get Decics with Bounded Discriminant
27.12.2011 21:18:48 | NumberFields@home | Sending scheduler request: To fetch work.
27.12.2011 21:18:48 | NumberFields@home | Requesting new tasks for CPU
27.12.2011 21:18:50 | NumberFields@home | Scheduler request completed: got 0 new tasks
27.12.2011 21:18:50 | NumberFields@home | No tasks sent
27.12.2011 21:18:50 | NumberFields@home | No tasks are available for Get Decics with Bounded Discriminant
27.12.2011 21:35:50 | NumberFields@home | update requested by user
27.12.2011 21:35:55 | NumberFields@home | Sending scheduler request: Requested by user.
27.12.2011 21:35:55 | NumberFields@home | Requesting new tasks for CPU
27.12.2011 21:35:57 | NumberFields@home | Scheduler request completed: got 0 new tasks
27.12.2011 21:35:57 | NumberFields@home | No tasks sent
27.12.2011 21:35:57 | NumberFields@home | No tasks are available for Get Decics with Bounded Discriminant


allthough server-status is showing work is available.


???
51) Message boards : Number crunching : Runnitme discrepancy (Message 425)
Posted 11 Dec 2011 by frankhagen
Post:
Wow! Check out these run times:
http://stat.la.asu.edu/NumberFields/workunit.php?wuid=623684
http://stat.la.asu.edu/NumberFields/workunit.php?wuid=606269

I wonder who this might be...


strike!

you caught a fraggle - send him to report to Marjory.. ;)
52) Message boards : Number crunching : Runnitme discrepancy (Message 422)
Posted 9 Dec 2011 by frankhagen
Post:
I get 3.4 GFLOPS on my core i5-2500K @ 3.3GHz. Host 1461 gets 5.3 GFLOPS, a 56% increase. Overclocking by 56% does not seem unreasonable. And how accurate are the benchmark tests anyways?


LOL!

only bogomips are less accurate.

I know I don't get the same values every time I run the benchmarks. And then there's the question of linux vs. windows (my core i5 runs windows and host 1461 runs linux); in my experience, code built on linux is faster than the exact same code built for windows - so I wouldn't be surprised if benchmarks on a linux platform beat the benchmarks on a windows platform for the exact same type of CPU.


current boinc clients for linux64 are built with GCC and are much better optimized.

my I5M running win32:

Measured floating point speed 2601.5 million ops/sec
Measured integer speed 6286.39 million ops/sec

same machine running linux64:

Measured floating point speed 2957.11 million ops/sec
Measured integer speed 14869.31 million ops/sec

if someone compiles his own version using GCC 4.6.x for a machine that supports AVX - go figure.

53) Message boards : Number crunching : Runnitme discrepancy (Message 416)
Posted 8 Dec 2011 by frankhagen
Post:
I have a problem with my theory...


brilliant!

what if host 1461 is a real machine which is hosting host 2507?

and i am pretty sure that's it.


and about that 48-core AMD: history!

64 core 1 HE blades are on stock...
54) Message boards : Number crunching : 504 Hr work time!? (Message 408)
Posted 26 Nov 2011 by frankhagen
Post:
The 2 that I have/had (on VERY slow hosts) jumped to 50% very quickly and started climbing steadily.

One had got to 80-something percent and suddenly finished after around 39 hours - Got decent credit for it too, about time, I thought I was jinxed ;)


of course you did - eric got rid of creditnew.. ;)
55) Message boards : Number crunching : Use of HIGH PRIORITY (Message 392)
Posted 23 Nov 2011 by frankhagen
Post:
If you don't use the recommended workarounds and insist on running fossil-ware then you're never going to find joy with BOINC.


sounds interesting - then you can probably tell me how to upgrade to boinc 6.xx on a windows-dc. i got 2 hosts where i'm stuck with 5.10.45...
56) Message boards : Number crunching : Use of HIGH PRIORITY (Message 390)
Posted 22 Nov 2011 by frankhagen
Post:
I've asked the BOINC developers to re-instate the server code DCF safeguard against over-allocations like this, but I didn't get a reply. It might help if this project (and other projects with what I've called "non-deterministic tasks" - tasks wehere the runtime can't be predicted in advance) could re-inforce the need for server code which guards against over-allocation.


pin-pointed!

but you might concur to what i learned over the years - they will not learn a lesson, but keep frickeling around. they do not fix the ancient porblems which are still around, but come up with new fields like MT-apps, VM-integration, open-cl support and so on.

so it's getting worse and worser - and for my measures, this is way beyond FUBAR in the meantime.
57) Message boards : Number crunching : Massive drop of credits per CPU hour (Message 389)
Posted 22 Nov 2011 by frankhagen
Post:
Also, thumbs up to @Senilix for spotting the underlying problem :)


YUP!

what's rock proof by now:

creditnew is using elapsed time not cpu time - that's where you earned your merits.
this was introduced probably when AQUA showed up with MT-apps and the client reported cpu time of a single core. crazy enough, because elapsed time can be about everything + cpu time. just think about virtual machines..


creditnew is still using those faulty benchmarks to calculate credits, so it's totally open for cheating.


creditnew will not work for projects that have WU's with largely various runtimes. it will simply continue to grant random credits and send way too much or way too few WU's and by that foul up everything hostside.



58) Message boards : Number crunching : Massive drop of credits per CPU hour (Message 383)
Posted 22 Nov 2011 by frankhagen
Post:
@Al

All of your WUs with improper (too high/too low) credit have one thing in common: all show up with a run time of 0.00 sec.

I would guess this is (part of) the problem!


good point!

older boinc-clients to not ptoperly report run time and cpu time. looks like creditnew has fallen into another pit dug out in boinc-central..
59) Message boards : Number crunching : Massive drop of credits per CPU hour (Message 376)
Posted 21 Nov 2011 by frankhagen
Post:
... fourth is credit based on runtime (a new one implemented recently by DA for the cases where creditnew doesn't work well)."

go read the docs...

Link to doc (or other source) for #4, please? I don't recognise it.



well, i don't read those docs - you'll have to ask Teemu what he meant..
60) Message boards : Number crunching : Massive drop of credits per CPU hour (Message 373)
Posted 21 Nov 2011 by frankhagen
Post:
Not sure how to "get rid of it", as it's embedded in the latest server code.


yes it is - the default.

but, taken from the MOOwarp boards:

"There's actually four credit systems* in the BOINC validator code by default. First is that dynamic scheme for "device neutrality", second one is to get credit from WU (which is what we use), third is to grant no credit (instead trickle calls can grant credit) during validation and fourth is credit based on runtime (a new one implemented recently by DA for the cases where creditnew doesn't work well)."

go read the docs...




Previous 20 · Next 20


Main page · Your account · Message boards


Copyright © 2024 Arizona State University