Posts by arkayn

1) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1952646)
Posted 29 Aug 2018 by Profile arkayn
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Full caches on both machines, it took a while, but eventually got there.
2) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1952600)
Posted 28 Aug 2018 by Profile arkayn
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And we are back...

But not getting any work. Darn it.


Getting low on work....
3) Message boards : Number crunching : 20th Anniversary !! (Message 1952300)
Posted 27 Aug 2018 by Profile arkayn
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Four years ago, we all banded together and got T-shirts for our 15th anniversary. I thought I whould start a new thread to what ideas we can come up with for our 20th. Who wants to be FIRST??


I was, https://setiathome.berkeley.edu/forum_thread.php?id=83261
4) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1951900)
Posted 24 Aug 2018 by Profile arkayn
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I doubt if enough people would go the trouble of hoarding results to report. I think people just let BOINC run as intended. I put more weight on a cron job happening at that time that is more noticeable with the increased return rates during the contest.

Results returned per hour are presently less than they were before the WoW event started. The current lack of Arecibo work and the currently present longer GBT runtimes have brought that about.


Pendings are going up and valid is dropping.
5) Message boards : Number crunching : all 14au18ac GPU tasks on one system running 3 seconds? (Message 1951490)
Posted 23 Aug 2018 by Profile arkayn
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All the 14au tasks I got seemed to take "forever" not run extra fast :(

Tom


. . If you take a look at the results for those tasks in the SETI database and look at the stderr info you will probably find they have lower than the "normal" AR of 0.44. The lower the AR, the longer they take.

. . I have had a look and there are no tasks for 14au for the machine with the single 750ti, but there are a lot of errors. I am guessing that was from when you had the SoG tuning parameters in your app_info. There are task results from 14au for the machine with the two 750ti cards but the run times seem pretty normal to me.

Stephen

. .


Also if you are running the SOG app, it will take longer on Arecibo tasks than than the Guppi's, the CUDA app is reversed on those accounts.
6) Message boards : Number crunching : GTX is dead long live RTX !! (Message 1951457)
Posted 23 Aug 2018 by Profile arkayn
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I will be waiting for the 2060, just to see what they have in store for the middle of the pack model.
7) Message boards : Cafe SETI : 20th Anniversary T-Shirts (Message 1950857)
Posted 20 Aug 2018 by Profile arkayn
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It is getting close to time to plan out and see about getting T-Shirts for the 20th anniversary next April/May 2019.
8) Message boards : Number crunching : Buying a Supercomputer? (Message 1950662)
Posted 19 Aug 2018 by Profile arkayn
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Hello,

I'd like to buy a "supercomputer" for the main purpose of contributing to research like SETI and medical projects. I'm also somewhat interested in using it for VR, because why not.

I have an approximate budget of 20-30k, and have a few questions:

-How wasteful of my funds is this? Would building my own Linux cluster be 2x cheaper? 5x?

-What computer should i buy to get the most bang for my buck? I was looking at the "Silverdraft Power Resolve Workstation"... but not sure if I could stretch my dollars further with a different computer.

-Does this invite a security risk? I was once told by a friend that having such a powerful computer can attract the attention of hackers who would like to take control of the machine for mining bitcoin or whatever else.

Thanks for the help!

C


Looking at that machine that they want $33,500+Tax for, I decided to price out the components and add a few other items as well.









I can build pretty much that same computer, add two 31.5" 4K monitors, and faster ram for a quarter of the price they want. Buy another of the same case, more GPU's and another PSU and you still will not be even half their price.
9) Message boards : Number crunching : all 14au18ac GPU tasks on one system running 3 seconds? (Message 1950215)
Posted 17 Aug 2018 by Profile arkayn
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Those are overflows. You can see the -9 here

Pulse: peak=inf, time=31.43, period=0.186, d_freq=1420899658.2, score=nan, chirp=0, fft_len=8
Pulse: peak=inf, time=31.72, period=0.1313, d_freq=1420899658.2, score=nan, chirp=0, fft_len=8
SETI@Home Informational message -9 result_overflow
NOTE: The number of results detected equals the storage space allocated.


Those are running between 7 and 10 minutes on my 1070's.
10) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1950190)
Posted 17 Aug 2018 by Profile arkayn
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Go ahead and keep testing that system Keith..

I'm sure the servers will be down for a few more hours... <trips over LAN connection to Keith's computer pulling it from the back of the IO shield>


No sabotaging teammates Zalster.
11) Message boards : Number crunching : Windows 10, SETI, AMD GPUs, how? (Message 1950052)
Posted 16 Aug 2018 by Profile arkayn
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We need Raister for the answer on this. I'm more familiar with Nvidia and SoG. He would know about the ATI cards


Or Mike, as he was the primary tester for those apps.

And he has now posted.
12) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1950041)
Posted 16 Aug 2018 by Profile arkayn
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So where did the "phantom" Arecibo tasks split today come from?
https://setiathome.berkeley.edu/workunit.php?wuid=3096329479


Looks like a new tape that was recorded either June or July.

But there is no tape from Arecibo listed in the splitter array.

That's why I called it "phantom" I have seen no Arecibo tape loaded in the past week. So was it stuck in the RTS buffer and finally came free?


I got some of those WU's as well.

Looks like I received 69 WU's across my two machines.

I think that is a 27 July tape, at least if I decrypt the ID correctly.
13) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1950038)
Posted 16 Aug 2018 by Profile arkayn
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So where did the "phantom" Arecibo tasks split today come from?
https://setiathome.berkeley.edu/workunit.php?wuid=3096329479


Looks like a new tape that was recorded either June or July.

But there is no tape from Arecibo listed in the splitter array.
14) Message boards : Number crunching : Windows 10, SETI, AMD GPUs, how? (Message 1950029)
Posted 16 Aug 2018 by Profile arkayn
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If SoG is for both AMD and Nvidia, could you tell me how to unlock that option for AMD cards in the lunatics installer?

As far as I can tell, the best option is the one labeled “HD5” and is appended with “sah” in the app name displayed in BOINC.

Simply, the lunatics installer does not give me the SoG option for an AMD card, it’s only under the Nvidia options, which my card is not....

For now it’s running the HD5 SAH app. WU times on the order of 5-7mins.

I took a more reasonable approach, assigned 0.5CPU per GPU task, and reduced it down to 4 GPUs.

7 GPU tasks were producing such serious CPU bottlenecks that run times were like 20-25 mins per WU


I just looked at the actual archive and it looks like the OpenCL_Ati_HD5_r3557 is the same generation as SOG app.

From looking at the archives, it seems the SOG app for AMD was slower that the HD5 app.
15) Message boards : Number crunching : Windows 10, SETI, AMD GPUs, how? (Message 1950010)
Posted 16 Aug 2018 by Profile arkayn
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The beta is available at all three sites, so that should be the one he chose.
16) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1949826)
Posted 15 Aug 2018 by Profile arkayn
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Just got a no tasks are available at BOINC startup. Weird.
[Edit] Hit or miss now on getting work. 3 - 4 requests get nada and then finally a request gets 20-30. Not enough to replace what is reported. Caches falling on my fastest crunchers.


Both of mine are slowly losing work as well.
17) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1949775)
Posted 15 Aug 2018 by Profile arkayn
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They gave us more data files. blc05 for the same day we have been working on for a while. Hopefully we have enough to get us through until Monday morning.
No reason to panic.


. .But have you considered the WOW event challenge??

Stephen

:)


Nope. Not sure how much to expect in added tasks done over the usual average. Though it seems like the usual average has been increasing from 1000 channels (rough estimate) done per day to closer to 1300 channels per day. I like to have a general notion so I can PANIC at the appropriate time. It is just my way of being part of the community :-)

Any guesses??


There are currently 528 people registered for the event, but I expect that number to jump here in about 12 hours or so.
18) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1949708)
Posted 14 Aug 2018 by Profile arkayn
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They gave us more data files. blc05 for the same day we have been working on for a while. Hopefully we have enough to get us through until Monday morning.
No reason to panic.


With the WOW starting tomorrow, it might go just a wee bit faster than normal.
19) Message boards : Number crunching : SETI@Home Wow!-Event 2018 (Message 1949694)
Posted 14 Aug 2018 by Profile arkayn
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I think that today's outage will be long based on the past pattern of short-long consecutive weeks. Last week was short so this week is long. Definitely some bunkering going on to make through the expected long outage.


And it was not that long, did not run out of work on either machine.
20) Message boards : Number crunching : Panic Mode On (113) Server Problems? (Message 1949027)
Posted 11 Aug 2018 by Profile arkayn
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I got a few of those overflows on my system as well, they took around 30 seconds on the 1070's.


Next 20


 
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SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.