Posts by Mr. Kevvy


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21) Message boards : News : Arecibo still threatened with closure. (Message 1795250)
Posted 19 days ago by Profile Mr. KevvyCrowdfunding Project Donor
If we overstay our welcome at AEI we'll probably have to search out cloud resources for the runs.


Nice that it's finally out there... thanks! Good that we have something to direct all the inquiries to.

I know that one reason that a super/cloud computing facility was required is that the algorithms haven't been finalized and are still being improved (ie for RFI removal) so it needs a complete run every time.

Perhaps if and when that welcome is worn out, they will have been tuned enough for the long-term that the idea of an incremental NTPCkr that builds on the existing run results will be doable. Then NTPCkr will finally be near-time and local, and can possibly be built for under $10K.
22) Message boards : Number crunching : SETI applications for NVIDIA GPU improvement - how you can help (Message 1795069)
Posted 19 days ago by Profile Mr. KevvyCrowdfunding Project Donor
I'm always interested in #3 and #4 though have only two Windows hosts; please ask me anytime (I think you have my e-mail.) I also have some spare cards (ie 2xGTX480, 2xGTX460, GTX570, 9800GT) but I think the postage to Russia would be more than they are worth!
23) Message boards : News : Arecibo still threatened with closure. (Message 1795010)
Posted 20 days ago by Profile Mr. KevvyCrowdfunding Project Donor
Now why isn't there enough money for the wealthiest nation to keep a world-class and potentially Earth-saving scientific facility open when it costs a tiny percentage of, say, CERN's Large Hadron Collider?







Ah, right... priorities.
24) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1794853)
Posted 20 days ago by Profile Mr. KevvyCrowdfunding Project Donor
As I said (please re-read) update was installed in automatic mode w/o user consent. That's the issue.


Ah, then they must have consented then prior. The EULA is presented during the install process. It's the only way to back out at that point without it installing and requiring reversion.
25) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1794842)
Posted 20 days ago by Profile Mr. KevvyCrowdfunding Project Donor
Fortunately I was able to revert update back to Windows 8.1 (by stock means, it's still allowed) filling questionary why I reverting back and hitting quite a lot confirmation buttons that "I'm sure I wanna drop wonderful Win10 and return to stone age of Win8.1" so to speak.


You can also revert by just clicking Decline on the EULA then confirming:

26) Message boards : Number crunching : Nvidia GPU tasks cause screen response delay (Message 1794760)
Posted 20 days ago by Profile Mr. KevvyCrowdfunding Project Donor
Are you running more than one GPU task at a time via editing app_config.xml or some other means?

Does this happens on work units that start with blc and end with vlar, or all of them? (The other kind starts with a number.)
27) Message boards : Number crunching : Are some gpu tasks longer now? (Message 1794720)
Posted 20 days ago by Profile Mr. KevvyCrowdfunding Project Donor
Thats definitely not the case.

Speaking from my own experience with NVidia cards and CUDA applications. GBT 'guppi' VLARs are settling around 53 minutes (two at a time) on GTX 750Ti. Will start GTX 970 test in about two hours' time.


980 11-13 mins., 970 13-16 mins. with 0.2 core one at a time. Does about the same regardless of the CPU or PCIe revision. Non-VLArs are/were 3-4 mins.
28) Message boards : Number crunching : Are some gpu tasks longer now? (Message 1794711)
Posted 20 days ago by Profile Mr. KevvyCrowdfunding Project Donor
Perhaps the powers to be will change the programs and not schedule vlars in the near future.


Dr. Korpela indicated that it was tried on Beta to add a setting to the Project Preferences to allow/disallow GPU VLAR, but that this resulted in no GPU work at all. I'm puzzled by this, as the code with no option to disallow them was in placed and worked just fine for a while; something must have been done incorrectly so I'm still hopeful that they are working on it and a solution is forthcoming. I keep seeing that it's a non-issue because non-VLAR Arecibo work is going away, but I don't see any evidence of this (edit: Richard H. posted some above... damn) and the team has indicated otherwise (about equal amounts of work will be distributed from each source.)

I'm now finding that the newer blc6 and blc7 VLARs now run about 2x slower on my GTX 750Ti with cuda50 - it was closer to your 4x at the start of the run.


I noticed today that my RAC started rising after over a month of fall. It should have bottomed out around 260K. So it does appear that some (welcome) change was made. (Edit: maybe it was just the recent AP run.)
29) Message boards : Cafe SETI : Thor is the Designer Cafe! (Message 1794532)
Posted 21 days ago by Profile Mr. KevvyCrowdfunding Project Donor
P.S. There's a chance that a personal appearance may also happen this evening.


Nice... a perthornal appearance. :^D
30) Message boards : Number crunching : Tried to free up all tasks, but I screwed up; how to fix? (Message 1794495)
Posted 21 days ago by Profile Mr. KevvyCrowdfunding Project Donor
They are now "ghosts" and will have to time out. In future, you can abort the tasks then update the project and then they will be immediately reassigned.

(Edit: Ensure "No new tasks" is on when this is done of course!)
31) Message boards : Number crunching : Invalid Host Messaging (Message 1794470)
Posted 21 days ago by Profile Mr. KevvyCrowdfunding Project Donor
computer 7374749 would be:
based on RAC in the top-users would indicate this user:
Name: fbi
RAC: 74,728
country:Germany

the only german @ ~74K RAC


Detective work is good, but the result is ambiguous. For example, here is an Austrian with enough RAC and hidden computers.

Since the admins. here (ie Dr. Korpela) can see who it actually is all we really can do is advise them.

Didn't know that - sorry.


No worries... at least you are trying to help! :^)
32) Message boards : Number crunching : Invalid Host Messaging (Message 1794436)
Posted 21 days ago by Profile Mr. KevvyCrowdfunding Project Donor
. . This host is not very helpful.

http://setiathome.berkeley.edu/results.php?hostid=7940844


Too minor to worry about really. Also it would be suggested to confine multiple short replies into one posting.

@Richard et al: 7374749 is now the #2 host showing 1572 trashed GUPPI work units. Nothing appears to have been been done so far.
33) Message boards : Cafe SETI : The joke thread Part 4. (Message 1794264)
Posted 22 days ago by Profile Mr. KevvyCrowdfunding Project Donor
(Warning: NSFW language in a large font if clicked!)

(2016 June 7) Today's joke is the User of the Day on the main page, bottom-left. As well, click his profile (if no one's around) and check his team name. Interesting random pick...

It may not last, so if it's someone nondescript now, it's been changed. :^)
34) Message boards : Number crunching : Panic Mode On (103) Server Problems? (Message 1794102)
Posted 23 days ago by Profile Mr. KevvyCrowdfunding Project Donor
You don not have to restart BOINC, just suspend/resume the task and it will run fine on next run.


Didn't work. Um... Linux!
35) Message boards : Number crunching : Invalid Host Messaging (Message 1794047)
Posted 23 days ago by Profile Mr. KevvyCrowdfunding Project Donor
I've written jointly to Dr Anderson and Dr Korpela about this host...
I included Dr Anderson, because some of the temptations leading to this sort of behaviour arise from the BOINC platform design, at least as much as from SETI's use of it.


Excellent and thanks; may carry more weight from a developer. This thread has numerous examples of the same, including a few posts down (Cody Johnson?) with >32K tasks In Progress.
36) Message boards : Number crunching : Panic Mode On (103) Server Problems? (Message 1794017)
Posted 23 days ago by Profile Mr. KevvyCrowdfunding Project Donor
No, I am using a SSE2 client.


Thanks... that was the only thing I did differently from this machine than several others so no idea why it's the only one with this problem.
37) Message boards : Number crunching : Panic Mode On (103) Server Problems? (Message 1794008)
Posted 23 days ago by Profile Mr. KevvyCrowdfunding Project Donor
...but CPU only tasks have a glitch. Sometimes they do not make any checkpoint and seem to go on forever, so I have to abort them.
Tullio


If this is on one of your Linux machines, I have the same problem only on this computer. However you may not have to abort the the stuck work units. When I quit the BOINC Manager including terminating apps. and relaunch BOINC they complete normally; I checked them and they are valid and get credited. I need to do this a couple of times a day to clear one or two stuck ones. I was wondering when I would see someone else with the same issue.

Are you using the AVX MB client?
38) Message boards : Number crunching : Invalid Host Messaging (Message 1793980)
Posted 23 days ago by Profile Mr. KevvyCrowdfunding Project Donor
Host 7374749

This one should be reported to Dr. Korpela(?) The owner may have developed code that locks all the GUPPI work unit files so that they error out but allows the non-GUPPIs to complete normally (or maybe doing it manually ie by deleting them, just trying to avoid the "Aborted".)

In progress (871) · Validation pending (1670) · Validation inconclusive (87) · Valid (861) · Invalid (0) · Error (925)

All of those 925 error units appear to be GPU GUPPI work with the same -5 Can't Open File. Also shows as "Anonymous" indicating the owner has hidden their computers.
39) Message boards : Number crunching : vlar data and breakthrough listen (Message 1793917)
Posted 24 days ago by Profile Mr. KevvyCrowdfunding Project Donor
In short - both lists most probably intersect.


Only slightly... there are (edit: were prior to the May announcement) 460 stars with Kepler object planets, the furthest being 8kLy away, but there are 600M stars within 5kLy from earth, so less than one millionth contain Kepler planets.

Thus, if not looking at confirmed planetary systems we may as well stay with random searches as the search has been essentially randomized.
40) Message boards : Number crunching : vlar data and breakthrough listen (Message 1793910)
Posted 24 days ago by Profile Mr. KevvyCrowdfunding Project Donor
The Greenbank telescope does mainly close observations of suns that may have planets around them (therefore more likely to have aliens).


That was the initial idea (to observe Kepler objects) but doesn't seem to have carried through to the Breakthrough Listen observation plan:

1. Green Bank Radio Telescope

World’s deepest searches for artificial signals in five key samples (Northern Hemisphere):

All 43 stars within 5 parsecs, at 1-15 GHz. First-ever complete SETI survey within 5 parsecs. Sensitive to “Earth-leakage” levels of radio transmission.
1000 stars of all spectral-types (OBAFGKM). Within 50 parsecs. 1-15 GHz.
One Million Nearby Stars. In 2016, first 5,000 stars; 1 minute exposure (1-15 GHz)
Centers of 100 nearby galaxies: spirals, ellipticals, dwarfs, irregulars (1-15 GHz)
Exotic Stars: 20 White Dwarfs, 20 Neutron stars, 20 black holes

2. Parkes Radio Telescope

World’s deepest searches for artificial signals in six key samples (Southern Hemisphere):

All 43 stars (at south declinations) within 5 parsecs, at 1-15 GHz. First-ever complete SETI survey within 5 parsecs. Sensitive to “Earth-leakage” levels of radio transmission.
1000 stars (south) of all spectral-types (OBAFGKM). Within 50 parsecs. (1-4 GHz)
One Million Nearby Stars (south). In 2016-2017, first 5,000 stars; 1 minute exposure (1-4 GHz)
Galactic plane and Center (1-4 GHz)
Centers of 100 nearby galaxies (south declinations): spirals, ellipticals, dwarfs, irregulars (1-4 GHz)
Exotica: 20 White Dwarfs, 20 Neutron stars, 20 black holes


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