Posts by Oz


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1) Message boards : Number crunching : Panic Mode On (89) Server Problems? (Message 1563371)
Posted 2 days ago by Profile Oz
AArrrggg! I got the dreaded "No host found with that cpid." on host 7237635. Normally I would not care - the results show up eventually, but I'm doing the WOW competition and that box makes ~23K/day. It's the aliens, or Congress...
2) Message boards : Number crunching : Panic Mode On (89) Server Problems? (Message 1557971)
Posted 13 days ago by Profile Oz
Yep, it would appear that if nothing changes, MB RTS will leave a smoking crater in the ground sometime Monday evening or Tuesday morning...
3) Message boards : Number crunching : Panic Mode On (89) Server Problems? (Message 1557314)
Posted 14 days ago by Profile Oz

And since the WOW event starts today i imagine a lot of users will transfer their processing power for other projest to SETI so that will be an interesting moment to follow.



You are right, there may be problems, I will be watching the graphs as well. But so far less than 700 users have signed up for WOW. I am guessing most of them are "heavy hitters" - so it should be interesting.

I have committed my modest resources to WOW as well, just for fun!
4) Message boards : Number crunching : AP credit, can someone expain this? (Message 1557116)
Posted 14 days ago by Profile Oz
edit
5) Message boards : Number crunching : AP credit, can someone expain this? (Message 1557104)
Posted 14 days ago by Profile Oz
(sigh) I have used the AP command line text file and it seems to have helped the processing of AP units significantly, however...

1.) now when MB units are processed concomitantly with AP units, the processing time of the MB units doubles or triples compared to when there is nothing but MB units available, sometimes exceeding the time necessary to process AP units

2.) I am guessing about the settings I am using in the text file, 64,4,1 does/is what? what does -an do?

3.) I still haven't found a cure for the @#$$$$$$# NVidia downclocking issue, new drivers, afterburner vs. precision, uping the GPU voltage - nada, nyet, bupkis, no joy - still random downclocking. Maybe I should write a batch file that reboots the machines every four hours...
6) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1554927)
Posted 18 days ago by Profile Oz
I am not so sure about that. The behaviour you describe, on at 275K then off at 300+K is definitely what has been happening but the munin graphs (http://setistats.haveland.com/sah_results.html) show a different pattern. Perhaps the staff is trying for better control of the RTS cache - or maybe generation and consumption have hit a precarious balance - we shall see.
7) Message boards : Number crunching : AP credit, can someone expain this? (Message 1545295)
Posted 39 days ago by Profile Oz
When Astropulse v7 is released the screams will begin a new I expect.


Astropulse V.... 7... ???!!!!!

Ooooooooooooooh noooooooooooooo!
8) Message boards : Number crunching : AP credit, can someone expain this? (Message 1545051)
Posted 40 days ago by Profile Oz
AAAaaaaaaaaaaaaaaaaaarrrrrrrrrrrrrrrrrrgggggggg!!!!

Thanx for letting me whine...
9) Message boards : Number crunching : AP credit, can someone expain this? (Message 1545049)
Posted 40 days ago by Profile Oz
Just so I am clear on this, the server guesses the performance of the system and if it guesses your system is slow, gives more credit - unless it can't decide - then it uses actual flops, yes?

If that's it, it doesn't work - the RAC on my 2.0 GHz dual core, GTX 660 (2GB ram) is constantly higher than my 2.2 GHz dual core, GTX 770 (4GB ram) and as Yosemite Sam so succinctly puts it, "that just ain't right..."
10) Message boards : Number crunching : Considering new Graphics card (Message 1545042)
Posted 40 days ago by Profile Oz
Go Blurf!!!


Thx for coming out yesterday--great time and appreciate the advice!!


No worries, a good time was had by all (and I notice your RAC is climbing nicely)
11) Message boards : Number crunching : AP credit, can someone expain this? (Message 1545036)
Posted 40 days ago by Profile Oz
Wow, take a look at 3636714988 and 3636594228 - returned within 8 hours of each other, both with 0.00% blanking, both ran in a little under 6k seconds with about 2k CPU time but one yielded 312 credits and one yielded 832. How can one possibly do that? A random number generator? Magjic 8-ball? There are many other examples on my machines which also include tasks with similar credit but 200-300% differences in run time...
Flop count is used for verification, right? Why isn't credit equal to flops divided by a constant?


The answer is indeed a random number generator, called CreditNew.

Read about it here: http://boinc.berkeley.edu/trac/wiki/CreditNew


Ok, I read it, it obviously does not work as stated, if it did, similar jobs would only vary a few percent on the same machine - I could even see a 60-150% range to cover angles and that sort of thing. I could get more consistent credit to work numbers throwing darts blindfolded (slight hyperbole) - I mean it worked more or less okay when they cut the credit in half but now it's just gone mad...
12) Message boards : Number crunching : Considering new Graphics card (Message 1544845)
Posted 40 days ago by Profile Oz
Go Blurf!!!
13) Message boards : Number crunching : AP credit, can someone expain this? (Message 1544839)
Posted 40 days ago by Profile Oz
Wow, take a look at 3636714988 and 3636594228 - returned within 8 hours of each other, both with 0.00% blanking, both ran in a little under 6k seconds with about 2k CPU time but one yielded 312 credits and one yielded 832. How can one possibly do that? A random number generator? Magjic 8-ball? There are many other examples on my machines which also include tasks with similar credit but 200-300% differences in run time...
Flop count is used for verification, right? Why isn't credit equal to flops divided by a constant?
14) Message boards : Number crunching : Considering new Graphics card (Message 1541533)
Posted 46 days ago by Profile Oz
Hi, Blurf,

I travel regularly throughout upstate NY, and would be more than happy to help you out if I can, Also, I'm interested in the 460... let me know.
15) Message boards : Number crunching : After editing app_info GPU usage go to 45% (Message 1541512)
Posted 46 days ago by Profile Oz
(Crossposted)

Just to be ABSOLUTELY clear, the recommendation of assigning one CPU core per AP task is properly accomplished by setting:

ngpus .5
ncpus 2

or

ngpus .33
ncpus 3

or does setting ncpus=1 reserve one core per AP launch independent of the ngpu setting?
16) Message boards : Number crunching : i7 4770K overheating when running seti@home (Message 1541505)
Posted 46 days ago by Profile Oz
Just to be ABSOLUTELY clear, the recommendation of assigning one CPU core per AP task is properly accomplished by setting:

ngpus .5
ncpus 2

or

ngpus .33
ncpus 3

or does setting ncpus=1 reserve one core per AP launch independent of the ngpu setting?


(BTW, I have been using Arctic Silver for many years. Quite literally hundreds of builds, stock to massively overclocked. On the systems I have cleaned and changed, I have always observed at least a 1-2 degree Celsius temperature drop although I suppose this could be attributed to cleaning and careful and sparing application. I am currently using it on GPUs as well. My Q9650 3.0 GHz is running S@H 24/7 clocked to 4.02 Ghz with peak core temps never exceeding 155F, ave temps ~130F)
17) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1538166)
Posted 51 days ago by Profile Oz
AP units are being splat, next stop, higher RAC junction...
18) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1534437)
Posted 59 days ago by Profile Oz
Ready to send (MB) has dropped below results received in the last hour. Hopefully, this will be addressed in today's maintenance.
19) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1514880)
Posted 109 days ago by Profile Oz
Free-DC seems to have become senile. Doesn't know anything about any of my boxes.
20) Message boards : Number crunching : Panic Mode On (88) Server Problems? (Message 1511740)
Posted 118 days ago by Profile Oz
Aah, lovely verbage... being American, I am of course, confounded by English.

One of my favourite phrases, brought to you courtesy of the United States Air Force:
The (mechanism in question) experienced catastrophic non-linear structural exasperation leading to energetic disassembly.
Use it carefully.

Cheers


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