Posts by JDWhale


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1) Message boards : Number crunching : What if... All future WU's were VLAR ? (Message 1014224)
Posted 1505 days ago by Profile JDWhale
From the replies I see here, it seems that the BOINC Manager Preference not to "Use GPU while computer is in use" option is either being ignored by users, or not implemented very well by the application, if at all.

Not being a "GPU cruncher" myself, I can't feel the pain by those of you that are. But my experience programming parallel computing devices dating back 25 years (past tense called 'array processors') might lead me to believe that some lessons learned long ago are possibly ignored with the current implementation [possibly at the driver level?].
2) Message boards : Number crunching : Why did they limit dl's at all? (Message 1014187)
Posted 1505 days ago by Profile JDWhale
Not everyone is getting downloads as needed.. and people have not yet been able to stock up for next one... so ALMOST brilliant.

Steps on the right direction. But not quite there yet.

Plenty of time to 'stock up' as seen last Monday... Apriori is being able to upload and report results after the outage. In the past this might take 24+ hours, now it's almost instantaneous with new work distributed to the hosts that need it most. Without upload/reporting new downloads were impossible...

Not anymore. BRILLIANT !!! (Agreed, some fine tuning is desirable... but it's still much, much better than after prior outages.)

Did I say BRILLIANT ?
3) Message boards : Number crunching : Why did they limit dl's at all? (Message 1014181)
Posted 1505 days ago by Profile JDWhale
I said it last week and I'll repeat it again now...

Throttling back downloads after the outage is BRILLIANT !!!

Uploads went quickly and without a hitch and downloads are available as needed...

BRILLIANT !!!
4) Message boards : Number crunching : What if... All future WU's were VLAR ? (Message 1014156)
Posted 1505 days ago by Profile JDWhale
Please excuse if this topic has already been argued, but here goes...

I've got a problem with all the moaning about folks not being able to feed their GPUs at maximum efficiency... complaining the the required AR's for max RAC are not being supplied by the download feeders upon request.

Not too long ago, in the CPU only crunching era, this was considered "cherry picking"... The act of cancelling or otherwise thwarting poorer paying WU's to maximize your RAC... your perceived throughput. In the past some crunchers might have realized that different cache sizes or CPU architectures yielded varying performance on different Angle Ranges and might have cancelled poorly rewarding WUs based on this knowledge (or other 'cherry picking' reasons), while the 'pure' cruncher crunched whatever he was fed... even if it tasted/paid like sh*t.

How is reschedueling poorer performing WU's from GPU to CPU any different, especially when you might end up with months worth of work queued for the CPU while your GPU sits idle waiting for the cherries to show up?

If you are as committed to crunching for the project as many of you say you are, and have spent the cash to build super crunching machines that exclude poorly paying (credit wise) WUs... What would you do if all future WU's were VLAR? Which just might happen as interesting targets are identified and the search narrows to specific points in the sky (I don't know if this is true, just hypothesising :) ?

Just a thought...
Warm regards,
5) Message boards : Number crunching : This computer has reached a limit on tasks in progress?? (Message 1011145)
Posted 1512 days ago by Profile JDWhale
AFAIK, this project has never asked for more than "spare" CPU cycles to get the job done. If this has changed, please let me know. Building more and more powerful systems then complaining when work is not available to feed them seems against the original concept of the project.

It's my opinion that we should be happy when the admimistrators of the project allow us to crunch for them. Isn't that why we all originally joined the project. That was the way it was when I joined back in 1999 :)
6) Message boards : Number crunching : This computer has reached a limit on tasks in progress?? (Message 1011039)
Posted 1512 days ago by Profile JDWhale
This is brilliant!

Normally after a significant outage I can't upload my results and therefore can't download any new tasks. However this time that's not the case. Uploads were no problem after the outage and a few new tasks (number is 20) were downloaded to the hosts that had run dry.

I doubt the new limit has had any bearing on you being able to upload all your results & download new work as the servers were being hammered as hard as they ever have been even with the limitation in place. It is most likely a result of the upgrades they did while the system was down.


But if the downloads/outstanding WUs are limited to 20 tasks per host after the outage, the download pipe won't stay clogged for 24+ hours, thus blocking uploads as in the past. Bottom line... my host has work shortly after the servers came back online. In the past it might take a full day before my results could be fully uploaded and requests for new work issued.

Again... This is brilliant!!!
7) Message boards : Number crunching : This computer has reached a limit on tasks in progress?? (Message 1011016)
Posted 1512 days ago by Profile JDWhale
This is brilliant!

Normally after a significant outage I can't upload my results and therefore can't download any new tasks. However this time that's not the case. Uploads were no problem after the outage and a few new tasks (number is 20) were downloaded to the hosts that had run dry.

I can hope that this is the intended behavior and more WUs will flow freely as the network/server traffic after the outage eases.
8) Message boards : Number crunching : heat and noncrunching... (Message 1008804)
Posted 1518 days ago by Profile JDWhale
I'm near Houston and the daily heat index is over 100F... I've considered turning on some A/C, but it's not even July yet... let alone August :)

I'm a firm believer in acclimatizing... Long stays in libraries or supermarkets chill me to the bone and I can't wait to get back outside and into the heat.

To each their own :)
9) Message boards : Number crunching : Creditnew, Is this Another Failure (Message 1006076)
Posted 1526 days ago by Profile JDWhale
Here are some of my favorites (CPU only tasks!!!)...

1630332500 621117854 7 Jun 2010 12:14:25 UTC 16 Jun 2010 21:56:14 UTC Completed and validated 16.53 15.19 372.31 Anonymous platform
1630332170 621117712 7 Jun 2010 12:14:03 UTC 16 Jun 2010 18:32:44 UTC Completed and validated 25.42 24.19 372.32 Anonymous platform
1630332163 621117708 7 Jun 2010 12:14:03 UTC 16 Jun 2010 18:32:44 UTC Completed and validated 9,068.67 9,018.16 372.32 Anonymous platform

25 seconds CPU time vs. 9000 seconds CPU time both pay 372 credits!!!
No wonder averages are on the rise :(
10) Message boards : Number crunching : Apparent error calculating granted credit (Message 1004920)
Posted 1528 days ago by Profile JDWhale
1629194324 5316621 6 Jun 2010 12:39:20 UTC 15 Jun 2010 6:46:59 UTC Completed and validated 7,747.64 7,525.73 84.33 368.43 Anonymous platform
1629194325 5137231 6 Jun 2010 12:39:21 UTC 16 Jun 2010 18:01:52 UTC Completed and validated 540.56 92.96 141.58 368.43 Anonymous platform

Yep... strange things are happening... on this one I claimed 84, wingman claims 141... we're granted 368 credits.

Also noticed a spike on this hosts average credit a couple days ago, but since I did detatch, that picture is gone :(
11) Message boards : Number crunching : Can Seti run off a ram disk? (Message 999488)
Posted 1547 days ago by Profile JDWhale
I've run BoincPE on diskless systems that boot from a 512mB USB flash chip... The chip can be marked as read only and copys the disk image to RAM at boot/system startup. Persistance can be configured to a networked server at scheduled intervals. Remote access is pretty easy to setup using TightVNC.

It's been a couple years since I set up the diskless systems and am no longer running them for various reasons. IIRC, the most difficult part was getting the network interface controller (NIC) drivers installed for the different motherboards.

It isn't easy to use the various tools required to generate the final disk image on the flash drive, but if you've got enough spare time to research and do the necessary trials, it can be a gratifying experience.

Good luck,
12) Message boards : Number crunching : Early SETI contributors - who's still around? (Message 998742)
Posted 1550 days ago by Profile JDWhale
6 April 1999

SETI@home classic workunits 31,813
SETI@home classic CPU time 221,187 hours
13) Message boards : Number crunching : Welcome to the 10 year club (Message 908584)
Posted 1892 days ago by Profile JDWhale
Dr. C.E.T.I. wrote:
[lookin' forward to my celebration on February 29th 2010]

LOL
14) Message boards : Cafe SETI : The New Mini-City News (Message 863662)
Posted 2021 days ago by Profile JDWhale
I have also now definitely shown that the Miniville site only rewards Miniville cities.


I disagree with this point, I just pointed my miniville config to carnoustie.myminicity.com and saw visits begin near instantly.

I use this city sometimes for "Happy Times" clicking at Yarolds, but not for the past few days.

Did you prefix your city name with 'world_', as required for myminicity links?

15) Message boards : Cafe SETI : "The New Moon" Bar (Message 863627)
Posted 2021 days ago by Profile JDWhale

Weeks and weeks in the hills of Skofus, tending to the 'still in the hills'
has worked up quite a thirst for some good hooch.

Bartender, if you please, drinks for all.
16) Message boards : Cafe SETI : FreeRice Donation Challenge - 1,207,980 grains! (Message 837631)
Posted 2085 days ago by Profile JDWhale
+2000
17) Message boards : Cafe SETI : Arizona Moon`s coconut posting thread II ;-) (Message 837591)
Posted 2085 days ago by Profile JDWhale
mmhh.. it must have
been the 80`ties.. I was young, for sure.. ;-))


In the 80's, all of us were 'young'... I was commuting 12,500 miles between work & home back then... 4 days one way (trains, planes, & automobiles) (8 weeks work, 4 weeks off)!
18) Message boards : Cafe SETI : Mini-Cities News (Message 837588)
Posted 2085 days ago by Profile JDWhale
One problem using Idarionis "Visitor" mode is that some types of sites, like "Dragon Cave" or "Valenth", might require an extra action to credit the subscriber.

I've found that using "snap links" add-on (different version depending on FF version) in addition to "flash-blocker" with FireFox allows me to cruise through the Idarionis links faster and perform the extra action faster than using "Visitor" mode and lets me perform extra action necessary to credit those "other" type sites. (right mouse button-drag opens all links inside dashed green box in separate tabs simultaneously... very, very fast! Use <ctrl-w> to close tabs after visiting).

Additionally, this method allows you visit only those cities you wish to visit quickly and to leave messages at your favorite cities. "Auto-visit" requires you to make extra visits, which aren't counted, to leave messages.

Also, it doesn't help any to have more than one user listing your site... Each mini-city is only allowed one visit per day per IP address... any more than one user listing your site just wastes clicks. This is why I don't show up on many "history logs"... I've already visited the minicity and don't want to "waste" another visit via Idarionis.

Happy clicking,
JDWhale
19) Message boards : Cafe SETI : FreeRice Donation Challenge - 1,207,980 grains! (Message 835590)
Posted 2092 days ago by Profile JDWhale
+4000
20) Message boards : Cafe SETI : FreeRice Donation Challenge - 1,207,980 grains! (Message 835035)
Posted 2094 days ago by Profile JDWhale
+8800


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