Posts by Chilean

1) Message boards : Number crunching : "Stuck" ATI WUs (Message 1398963)
Posted 5 Aug 2013 by Profile Chilean
Post:
Still getting these stuck WUs, the last ones were around 50% completion after 15 hours! I just suspended these.
2) Message boards : Number crunching : "Stuck" ATI WUs (Message 1398730)
Posted 4 Aug 2013 by Profile Chilean
Post:
Have you freed a CPU core ?
Its very important especially with a AMD CPU.


I did just before posting this thread. Didn't think freeing up a CPU was necessary due to the low CPU allocation BOINC gives to these WUs (about 0.04).

I'll try suspending/resuming like Mike suggested next time. Hopefully the freeing of a core will fix the issue.
3) Message boards : Number crunching : "Stuck" ATI WUs (Message 1398677)
Posted 4 Aug 2013 by Profile Chilean
Post:
Sometimes I see WUs stuck and they keep running for hours on end. I have to manually abort them. I know some WUs are longer than others, but hese WUs can run for 12 hours or more with only 80% completion. I'm running 3 WUs on a HD 6850, using anonymous platform from Lunatics using latest ATI drivers.

Anybody else have the same problem?
4) Message boards : Number crunching : Won't matter much to me......... (Message 1382253)
Posted 17 Jun 2013 by Profile Chilean
Post:
I am not talking about the physics of entropy. What I am talking about is how people supposedly heat their homes with a few pc. My cruncher consumes about 700 watts or so yet the heat out does not equal the heat from a 700 watt space heater it is considerable less. I can put my hand behind the computer case it will not burn my hand and it does not feel like a 700 watt space heat as a space heater will burn my hand when placed close up to it. Space heaters have caused fires and it takes the fire department to put out such fire. I have never heard of the fire department putting out a pc fire. Have any one ever worked in a physics lab and done entropy experiments? Like in a voltage regulator 12 volts in and 5 volts out and the excess electricity is converted into heat it is wasted electricity. I know I can not heat my living room much less the desk area by my pc it simply will not happen I need a space heater to heat my living room not my pc heating my living room. My pc might warm my hand but it certainly will not heat my working area of my pc.


I thought voltage regulators helped maintain a constant voltage level. Aren't you talking about a transformer? Transformers heat up due to Foucault currents and copper resistance (as well as hysteresis and so forth), but they, unlike PCs, DO some kind of transformation from one kind of energy to another, in where whatever inefficiency they have turns into heat, and the rest goes into useful stuff (in the case of the transformer and rectifier in the case of your PSU) it is a nice lowered DC voltage.
I might be wrong, but if your PSU is 95% efficient, then for every 100 watt that goes thru it, only 95 watt will come out at the other end, and the other 5 watt will turn into... heat!

PCs on the other hand compute (which is a logical thing, not a new form of energy) at the expense of electric usage which turns completely into heat. There's no way to turn 1 watt into 1+1=2. Yes, the calculation itself does indeed need electrons going thru transistors which in itself uses "1 watt", but that 1 watt will end up as heat... not in 1+1=2.

Have you ever left your heatsink without a fan? It gets REALLY hot to the touch.

If your PC draws 700 watts from the wall, then it will heat up your room as a 700 watt space heater. Try experimenting: Turn off your PC and turn on your 700 watt space heater and I assure you, having all the rest of the variables the same, it'd be the same as having your PC on and the space heater off.
5) Message boards : Number crunching : Won't matter much to me......... (Message 1382153)
Posted 17 Jun 2013 by Profile Chilean
Post:
If all a pc did is convert it's emery into heat it would be very inefficient but pc are very efficient there fore less heat is produced much like a florescent light bulb that's all it is too it. You can not heat a room or make toast or light my cigar with a pc it is just too efficient. Now when I was in the USAF they had those old computers that used reel to reel computers the size of refrigerators and they had them by the dozen crammed into a room that had to be air conditioned because of the heat they produced but my pc in my living room produces very little heat my appliances such as my plasma TV and my clothes dryer and my refrigerator produce way more heat than my pc and yet they do not heat my hall or kitchen. The drier would heat some if I do not vent it outside.


Just because all of the power consumed goes to heat, it does not mean it is inefficient per se.

Take for instance my laptop's CPU, it's TDP is 45 watts, so let's just say it draws 45 watts from the wall under full load. Alright, those 45 watts go directly into heat, BUT, in the process, it's performing millions of instructions per second. Thus the term, performance per watt.

In terms of converting electric power into some kind of "useful" energy (such as an engine turning potential energy from gas to me rollin' down the highway), PCs are 0% efficient.

My old athlon 64 6400+ kept my room pretty warm at night (along with my GPU), that CPU alone had a TDP of 125 watts!
My laptop now, has a TDP of 45 watts, and computes about 4-6 times more using less energy. THAT's efficiency!
6) Message boards : Number crunching : Won't matter much to me......... (Message 1382049)
Posted 17 Jun 2013 by Profile Chilean
Post:
One summer my ac went out and it got 106 in my living room where my cruncher is and it kept on crunching no problem. The way I understand it if my computer uses 300 watts to crunch it is not the same as 300 watts of heat because all the electricity is being used not to produce heat but to crunch with some heat as a by product. Similar to a 100 watt incandescent light bulb produces more heat than 100 watt florescent bulb which produces no heat. They both use 100 watts electricity one produces heat and the other does not. Computes are much the same they do all kinds of stuff but their design is not to produce heat. A 1500 watt computer does not produce as much heat as a 1500 watt space heater.



Correct me if I'm wrong, but most if not ALL of the electric power used by a PC is converted into heat.

It's not the same as an engine turning a certain % of the gas' potential energy into mechanical energy and the rest goes to heat. In CPUs, the mere fact of moving an electron (to compute) produces heat, P = I^2 * R.

CPUs use energy to "produce" something logical, not energy based, ergo, all the power it consumes must go somewhere (hint: heat).
This boggled my mind the first time I read it, could someone expand on this?
7) Message boards : Number crunching : running more than 1 unit on gpu (Message 1379262)
Posted 10 Jun 2013 by Profile Chilean
Post:
Here the file content "app_config.xml" in directory "\\BOINC\DATA\projects\setiathome.berkeley.edu"

6 wu executed by cpu
6 wu executed by gpu

<app_config>
<app>
<name>setiathome_v7</name>
<max_concurrent>12</max_concurrent>
<gpu_versions>
<gpu_usage>.166</gpu_usage>
<cpu_usage>.166</cpu_usage>
</gpu_versions>
</app>
</app_config>


That might be an overkill. Running 2 WUs on my 660M keeps it at around 95% usage and about 60% for the Memory Control Load.
You are basically wasting VRAM having 6 concurrent WUs.
8) Message boards : Number crunching : Stupid AP Question (Message 1379260)
Posted 10 Jun 2013 by Profile Chilean
Post:
Only the stock GPU apps have been provided by third parties. The Lunatics Astropulse CPU application is still significantly faster than the stock AP CPU application. The Lunatics optimized app requires SSE and makes good use of it, the stock app can run on any x86 CPU.
                                                                   Joe


So then there is a real reason to run the new Lunatics apps, contrary to what I was told above...IF I am willing to run AP on the CPU, that is.


From what I've gathered so far, if you are planning to crunch with CPU... you should definitely install Lunatics optimized apps.
This is specially true if you have an AVX capable CPU (and Win 7 with SP1).
9) Message boards : Number crunching : ASUS MB Owners (Message 1367640)
Posted 13 May 2013 by Profile Chilean
Post:
I use LinX to stress any PC (specially overclocks). IMO, it's the hardest stress test I've used so far. It even makes the AMD APUs to throttle due because it makes the CPU surpass it's TDP (running BOINC on all cores doesn't).

It hits RAM just as hard.
10) Message boards : Number crunching : lightests linux OS just for BOINC? (Message 794264)
Posted 7 Aug 2008 by Profile Chilean
Post:
I'm about to format my old laptop, and I want to put linux in it, and leave it running just BOINC. I was thinking on Ubuntu... but i wondering if there was a faster... lighter OS than Ubuntu for an old laptop?
11) Message boards : Number crunching : BOINC Problem. Phenom 9850 (Message 766506)
Posted 12 Jun 2008 by Profile Chilean
Post:
bump?
i can't even get it to stay for 1 min without having it crashing
12) Message boards : Number crunching : BOINC Problem. Phenom 9850 (Message 766484)
Posted 11 Jun 2008 by Profile Chilean
Post:
Ok, so I just installed a new Phenom, new XP install...
I launch BOINC... add project... but then after 1-3min, the boinc client just closes... and boinc manager just tries to reconnect.

Anybody have any clue to to this problem??

I've tried both current and beta versions of BOINC.
13) Message boards : Number crunching : Can anybody help me? (Message 724885)
Posted 12 Mar 2008 by Profile Chilean
Post:
no.. it didn't find anything >.<
idk why.
it was clearly a spyware, it took pics of my desktop... it keylogged, and whenever i deleted it, it came back.
14) Message boards : Number crunching : Can anybody help me? (Message 724876)
Posted 12 Mar 2008 by Profile Chilean
Post:
Well, I got the little bug on my clean desktop in a zip file. i formated my laptop and installed Ubuntu in it. thanks for your help :)
15) Message boards : Number crunching : Can anybody help me? (Message 724869)
Posted 12 Mar 2008 by Profile Chilean
Post:
I think I got the culprit...

http://research.sunbelt-software.com/threatdisplay.aspx?name=SniperSpy&threatid=44040
16) Message boards : Number crunching : Can anybody help me? (Message 724851)
Posted 12 Mar 2008 by Profile Chilean
Post:
This isn't BOINC related, but I need programmers or someone equivalent to it.

Ok, I think I have a spyware, planted by somebody on my laptop, because I've been getting messages about some things i IM people to. and it's really creeping me out. Well, I think I found the culprit for keylogging my keys and taking screenshots of my PC and sending them to... whoever wants them. (I got a mail with personal info from somebody... like a stalker, it's really creepy) He/She got my cell phone number, plus personal info that I share with friends.
I deleted the application various times (I once caught the folder with a screenshot of my desktop...) but it kept coming back again...spy sweeper, ad-aware, or spybot would not detect it, as if it was homemade spyware.

Well, I need somebody that can open up the thing and disect the damn spyware or w/e it is...
I don't know forums that support this kind of request, so I came to SETI, cuz most of you guys know your computers (so do I, but not progrmamming).

If your willing to do this, respond and I'll post a link to the .zip file that cotains two .exes (regsvc32.exe and snhost.exe) plus two txt (dummy.txt and syslog.txt)

If you know a forum I can go to, then that would be great too. :)

HELP!

(i deleted windows, and installed ubuntu after receiving the mail. but... i would still like to dissect the app and find some IP address or something :/)
17) Message boards : Number crunching : Great news: SUN is coming to the rescue (Message 559488)
Posted 4 May 2007 by Profile Chilean
Post:
Hmmm... then I guess I'll be crunching Rosetta in the mean while.
18) Message boards : Number crunching : weird benchmarks. (Message 557849)
Posted 2 May 2007 by Profile Chilean
Post:
My P3-M 1.2GHz beats my P4-M 1.6GHz by quite a lot in benchmarks. but it takes longer to crunch 0.o"

P3-M
P4-M
19) Message boards : Number crunching : Anybody know how... (Message 557085)
Posted 1 May 2007 by Profile Chilean
Post:
It would be nice both. they should change it on the next build.
20) Message boards : Number crunching : Anybody know how... (Message 556976)
Posted 30 Apr 2007 by Profile Chilean
Post:
to replace the original boinc image with another image??
I found this really nice looking one at wikipedia.


Next 20


 
©2024 University of California
 
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.