Posts by Mr. Kevvy


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11) Message boards : Number crunching : Superfish (Message 1644943)
Posted 12 days ago by Profile Mr. KevvyProject donor
For anyone with a Lenovo, they have posted an automated uninstaller to get rid of Superfish.

Of course, just in case you are justifiably dubious running it given that it was also developed by Lenovo, there are manual uninstall directions there too. :^)

U.S. Department of Homeland Security alert on Superfish. This is worth a read as you should also uninstall "Komodo redirector" if present.
12) Message boards : Cafe SETI : I lost a bet....part II....the rest of the story. (Message 1644559)
Posted 13 days ago by Profile Mr. KevvyProject donor
I pledge a donation of $100 to SETI@Home on Monday 2015-Feb.-23 if, and only if, userID 421968 is able to post to these forums under the name "msattler" on that date. So, his choice.

(Edit: Just so it isn't misinterpreted, I'm offering an incentive to Mark to stay within the guidelines... not bribing the moderators to not enforce them! Yes, I know it's obvious to most.)
13) Message boards : SETI@home Science : ET, is that you? Scientists launch plan to beam welcome messages to far-off star systems (Message 1644243)
Posted 14 days ago by Profile Mr. KevvyProject donor
The whales are much smarter than humans.


"For instance, on the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much — the wheel, New York, wars and so on — whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man — for precisely the same reasons."

--- Douglas Adams
14) Message boards : Number crunching : Panic Mode On (95) Server Problems? (Message 1643534)
Posted 16 days ago by Profile Mr. KevvyProject donor
Oh for the old days when things ran well after an outrage. ;-)


Ran out hours ago... guess I go begging some Einstein work. This is becoming a regular Tuesday occurrence.
15) Message boards : Science (non-SETI) : Question for astronomers (Message 1643458)
Posted 16 days ago by Profile Mr. KevvyProject donor
"Yes", if by "display any motion" you mean that photographs over time within the range of a human lifetime will show that they moved.

"No" if you meant you'll see them move by looking at them, unless you can look at them without averting your eyes or sleeping for a year or so. :^)
The fastest, Barnard's Star, has this note: "The 10.3 seconds of arc it travels annually amounts to a quarter of a degree in a human lifetime, roughly half the angular diameter of the full Moon."

Caveat: I am not astronomer, nor do I play one on TV.
16) Message boards : Cafe SETI : Let me ask a bold question........... (Message 1641872)
Posted 19 days ago by Profile Mr. KevvyProject donor
One of the reasons I've stuck with this apartment for so long is that I don't pay for utilities. One rent bill covers heat, hot water and of course electricity. I'm only using about $100 a month worth of it for crunching so it's not like I'm bankrupting the property managers (also don't need the heat from the radiators as the computers take care of that)... slightly less than a tenth of the rent. There are still plenty of apartments like this, and if this one ever goes to metering, I will be moving immediately.
17) Message boards : Number crunching : near vlar? (AR 0.01) super slow on NVIDIA gtx 780 (Message 1641860)
Posted 19 days ago by Profile Mr. KevvyProject donor
I wondered why my whole computer was running like a bag of goo since yesterday. VLAR CUDA work units not only were taking 1.5 hours to complete, but the system was unusably slow with a screen updates, even as simple as scrolling browser window, hanging... watching any video was a hopeless mass of chunky pixel artifacts. CPU usage which usually is rock-steady at 99.5%-100% with a flat ceiling was spiky/choppy and below 90%. They really brick the whole works, so I aborted the lot of them.
18) Message boards : Number crunching : New system many invalids and errors (Message 1641292)
Posted 20 days ago by Profile Mr. KevvyProject donor
Here is you on BOINCStats which shows your actual daily production not just RAC which is averaged. Daily. prod. there total is 21,283 which is >100 GFlOps... this is more reasonable.
19) Message boards : Number crunching : New system many invalids and errors (Message 1641282)
Posted 20 days ago by Profile Mr. KevvyProject donor
The "Cobblestone": One GFlOp running 24x7 will earn 200 credits per day. Your current RAC at the present is exactly 2,000 = 10 GFlOps.

Just to show how far computing has come, when I was a young'un in the 1980's the ultimate supercomputer was the Cray X-MP, worth about $15 million at the time. It does 400 MFlOps, so if you put it to work on a BOINC project it would have a rather underwhelming RAC of.... 80.
20) Message boards : Number crunching : New system many invalids and errors (Message 1641273)
Posted 20 days ago by Profile Mr. KevvyProject donor
a bit over 5 teraflops per GPU???


Egads... 5 teraflops would result in a RAC of one million. I think that may be a tad overstated. ;^)
21) Message boards : Science (non-SETI) : The computer that crunches cloud data to heat your home (Message 1640696)
Posted 21 days ago by Profile Mr. KevvyProject donor
I've been doing this for years... turned off all the radiators in our apartment and it's been heated by computers ever since. Not pleasant in the summer though. :^)
22) Message boards : Number crunching : >1 Task per CPU? (Ans: Probably Not) (Message 1639610)
Posted 23 days ago by Profile Mr. KevvyProject donor
How did you measure % utilization on the GPU?


EVGA Precision. Essential in the cruncher toolkit. :^)
23) Message boards : Number crunching : >1 Task per CPU? (Ans: Probably Not) (Message 1639606)
Posted 23 days ago by Profile Mr. KevvyProject donor
However doing so will likely have little to no gains. More than likely it would just result in less work done in a given time if gone to far. Much like I suspect is likely happening with the iGPU running 5 tasks at once.


This is pretty much it. CPUs run BOINC code natively so are always very close to 100% utilization; there's no need to run >1 instance per core.

Conversely, GPUs have to be loaded with work by the CPU; you can see these helper processes feeding work to the GPU in Task Manager->Processes when you have BOINC GPU work running. If they aren't allocated enough due to the CPU core running the process not getting enough timeslices, being too slow, or due to bus overloading, the GPU will run at less than 100% utilization. In this case, running >1 instance per GPU does have significant gains. When I got my first 980, I tested it. With 0.4 cores reserved per GPU thread, I found with 1 instance on the GPU there was 45-55% utilization, with 2 was 70-75% and 3 is 95-100%. So I stuck with 3. Anything more than this is just going to slow it down and waste memory, as the GPU is always maxed out and then other factors such as bus oversaturation can occur. If someone has a slow CPU and a fast GPU, 5 instances could actually be worthwhile, if 4 are tested to be consistently and significantly less than 100% utilization, but this would usually be unlikely.
24) Message boards : SETI@home Science : ET, is that you? Scientists launch plan to beam welcome messages to far-off star systems (Message 1639573)
Posted 24 days ago by Profile Mr. KevvyProject donor
A statement on this just went on the main page with an associated thread. I recognize three of the signatories are from this project (Andrew P. V. Siemion, Eric J. Korpela, Dan Werthimer).
25) Message boards : SETI@home Science : ET, is that you? Scientists launch plan to beam welcome messages to far-off star systems (Message 1639388)
Posted 24 days ago by Profile Mr. KevvyProject donor
Agreed, but a century is such a short time, astronomically speaking.


It is, but it's nigh-impossible for us to ever make those signals unbroadcast, so probably too late to worry. That ship has sailed, barn door horse etc.
26) Message boards : SETI@home Science : ET, is that you? Scientists launch plan to beam welcome messages to far-off star systems (Message 1639382)
Posted 24 days ago by Profile Mr. KevvyProject donor
If there is an alien species out there who runs contrary to the "default position of the egghead set"* and is both technologically sophisticated enough that we have no chance of defeating them, and are still merciless usurpers of other species' planets, then it's too late already to cower in the dark, as they would also be sophisticated enough that our leakage of everything from morse code crackles to thousands of simultaneous digital video broadcasts has been whetting their appetites for a century.

*Contact, 1997
27) Message boards : Number crunching : Will switching from 32-bit OS to 64-bit OS help? (Message 1638046)
Posted 27 days ago by Profile Mr. KevvyProject donor
Thanks for the explanation. :^)

32 bit ? well 4Gig Video RAM equipped cards need more than that, simple as that really.


They are all 2048MB or less, being Beaters and all.
28) Message boards : Number crunching : Will switching from 32-bit OS to 64-bit OS help? (Message 1637978)
Posted 28 days ago by Profile Mr. KevvyProject donor
Now that I think of it, there are two problems that I constantly and regularly used to have with the "Beater Crunchers" with XP that I have yet to experience once since reimaging them with 7 (32-bit for both) and that did actually negatively affect crunching performance. Your mileage may vary of course... personal experience only:

First, every few weeks, they would exhaust some sort of system resource (I don't think it was memory... handles perhaps?) and every work unit would crash, menus wouldn't display properly, and I'd even get "Access Denied" trying to reboot. This was a definite detriment to crunching as it would lose all the work units in progress (very sad with the AP ones with >10 hours on them) plus being unable to do anything more and sitting idle if this wasn't caught. It happened on all of the XP boxes and pretty regularly. Of course as luck would have it the cycle time was just shy of the monthly "Patch Tuesday" which is the only time they were ever rebooted, and mostly then just to power down to blow the dust out of them. So my long uptimes with heavy processing was exposing some bug that most others would never see.

Secondly, every few days, the wireless LAN/WiFi drivers would fail and the machine would no longer be able to connect to upload/download work until the connection was disabled and re-enabled. This also happened on all of the WiFi XP boxes, though all of their WiFi cards and thus drivers were different. Again, long uptimes were probably exposing a bug that shorter sessions would obscure.

Of course, in a perfect world, these bugfixes would have just been rolled into XP and it would have continued on its merry way. But Windows isn't Linux, and Microsoft eventually decides that the bugfixes are going to go into the newer OS to encourage paid upgrades and because fixing an old OS just isn't as profitable.
29) Message boards : SETI@home Staff Blog : What does loss of net neutrality mean for volunteer computing? (Message 1637414)
Posted 29 days ago by Profile Mr. KevvyProject donor
FCC Chairman Tom Wheeler: This Is How We Will Ensure Net Neutrality

The important bit:

That is why I am proposing that the FCC use its Title II authority to implement and enforce open internet protections.

Using this authority, I am submitting to my colleagues the strongest open internet protections ever proposed by the FCC. These enforceable, bright-line rules will ban paid prioritization, and the blocking and throttling of lawful content and services. I propose to fully apply—for the first time ever—those bright-line rules to mobile broadband. My proposal assures the rights of internet users to go where they want, when they want, and the rights of innovators to introduce new products without asking anyone’s permission.


Yay! :^)
30) Message boards : Politics : The Venus Project-The Choice Is Ours (Message 1636993)
Posted 3 Feb 2015 by Profile Mr. KevvyProject donor
@Sarge (et al): Just to explain my now oddly out of place post, the person's name that prompted it has changed, so it may be disregarded. :^)


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