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Posts by old_user35334

Posts by old_user35334

1) Questions and Answers : Preferences : About my processor @ 100% (Message 22442)
Posted 28 Apr 2006 by Profile old_user35334
Post:
here\'s an update - been running with the new PSU for 11 months

no probs so far

case temp 26C
cpu temp 51C


psu fan 1340 rpm
cpu fan 2790 rpm
+ fixed fan

have to vacuum the cpu heatsink about every 4 months - or temp goes up from 47 C to 55C due to dust clogging the fins (as you can see I\'m half way through the cycle)

think that having an over size name brand psu helps a lot

2) Questions and Answers : Preferences : About my processor @ 100% (Message 12964)
Posted 31 May 2005 by Profile old_user35334
Post:
well i spoke too soon - my pc started resetting a few days after that post when under load.

took a while but after running memtest, prime95, reseating my RAM etc. I decided it must be the psu.

sure enough when i opened the PSU, there was a burnt patch where a resistor had blown in the PSU. was a generic 400W (LPK2-30) only 16 months old. I'd been running BOINC about 4 months when it died.

Bought an Antec truepower2 550W to replace. Works fine - PC runs about 3degrees cooler (47C CPU now at 100% load. It also has speed control for its fan and the case fan. I added a second case fan and everything seems quieter and cooler.

I would guess that the load of the continuous running was too much for the PSU. New one has MTBF of 80000 hours. Should expect ~10% failure rate a year. Hopefully I am running it cool as it is oversize.
3) Questions and Answers : Windows : Visual Fortran Runtime error on Windows 98SE (Message 12111)
Posted 27 Apr 2005 by Profile old_user35334
Post:

Tom

I setup my win98 SE machine with no AV, anti spyware etc.

CPDN crashes at about 8 hrs.

I can happily run Boinc 4.19, 4.25 & 4.32 with seti/einstein/protein predictor on it. Thus the problem seems to be the later cpdn models only.

I gave up on cpdn under boinc on my older computers and instead run boinc and the other projects. I run cpdn/boinc on a more powerful machine with win xp. Good luck running the classic cpdn SW and please let us know how it goes

Dave
4) Questions and Answers : Preferences : About my processor @ 100% (Message 12063)
Posted 24 Apr 2005 by Profile old_user35334
Post:
Generally speaking semi-conductors do decrease in life (or worsen in MTBF) when they are operated at higher temperatures for long periods of time. However I could not find any solid data on the intel public website to draw any conclusions. There was a comment I found stating a 250 year MTBF for hard defects but not enough data to use that number.

Most of the intel CPUs are specified to a max of 70C or thereabouts.

http://support.intel.com/support/processors/pentium4/sb/CS-007999.htm

When I am running CPDN at 100% CPU, my processor is about 50C. This rises to about 55C when the heatsink gets dirty due to accumulated dust. Personally I have not worried too much about this in terms of reliability as it is well under the chip specs.

You will see statements that life decreases by 50% for avery 10C rise in temp, but this does not mean much without the baseline data on MTBF at a particular temperature.

There have been a large body of people running Distributed computing projects over the last 5 years, but not much regarding studies on impact on CPU life that I could find.

I think that as long as your CPU is in the 45 to 55C range then you are in the same situation as the rest of us. Your motherboard may have a utility to monitor this. (My asus MB has a temp and fan speed monitor programme). Its more likely that another component in the PC will fail first.

I agree with Crandles that you want to keep an eye on the cooling that you use and that a laptop may be more risky. Also - make sure that you have a surge suppressor on your pc to help with electricity spikes.
5) Questions and Answers : Windows : Visual Fortran run-time error (Message 12062)
Posted 24 Apr 2005 by Profile old_user35334
Post:
Hi Steven,
I had the same thing happen. After a fairly exhaustive set of tests, I narrowed it down to my antivirus SW interacting with the cpdn model. I was using antivir. Try a full uninstall of your AV SW. (has to be an uninstall so that nothing is left in memory). Also - I wonder if there is an interaction with Zone Alarm - nothing conclusive but a few pointers that this may happen. It would be intersting if you could let everyone know what AV/OS/antispyware/firewall you use
Dave
6) Questions and Answers : Windows : climate prediction crashes (Message 12060)
Posted 23 Apr 2005 by Profile old_user35334
Post:
> I'm just going to interrupt you to tell that I have been experiencing exactly
> the same porblems on my machine.
>
> My machine went from 100% stable at everything, to crashing several times a
> day. It didn't actually crash, but graphics gets messed up, network connection
> is disturbed (cant connect to other PC's in the network, but can browse the
> internet with Firefox) and programs report out off memory errors when opening
> them. Basically the PC is unusable.
>
> One time it actually messed up my hard drive so bad, Winfdows couldn't boot,
> had to reformat and reinstall :-(
>
> The PC is an Athlon Sempron 2800+ (2GHz) on an ASUS A7V880 with 1Gb of dual
> channel memory. Graphics card is an ATI Radeon 9500Pro.
>
> I don't use the screensaver.
>
> This problem is extremely annoying, and I have had to Detach from the
> project.
>
>
>Karsten - I just found that interaction between my anti-virus SW and the later models seem to have been the cause of my crashes. I uninstalled the SW I use, and now the constant crashes have stopped - I am sending trickles (although the server is slow right now). I was using antivir version 6 with winxp home SP2 - both at the latest patch levels. Try a full unistall of your antivirus and let everyone know what you were using and if it fixed it. Also one of my PC's had a problem with zone alarm interaction causing crashes as well. Checkout this thread for a lot of data on other people's experiences with the latest models. http://www.climateprediction.net/board/viewtopic.php?t=2822
Dave
7) Questions and Answers : Windows : Climate Crashing WinXP SP2 PC exit code -2 (0xfffffffe) (Message 11830)
Posted 15 Apr 2005 by Profile old_user35334
Post:
I have the same problem
See: http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_thread.php?id=2387
for details. same error doe. my hw is fine.
8) Questions and Answers : Windows : climate prediction crashes (Message 11828)
Posted 15 Apr 2005 by Profile old_user35334
Post:
> Dave
> I'm just a user, so I don't know about Matlab, although I think I have seen it
> advertised in New Scientist.
>
> Boot drive = f:
> That is the only thing in your setup that is unusual. Could be the problem, as
> hadsm is a very complex program,
> and who knows what parts of the code may do. It was developed over 20-30 years
> by numerous scientists/programmers
&gt; working for the Met Office. <a> href="http://www.metoffice.com/corporate/pressoffice/2005/pr20050412.html"&gt;
&gt; This</a> is the latest machine to be running it. And various other Met
&gt; programs.
&gt;
&gt; Some computers have been unable to run CP. The reasons have never been found,
&gt; as the owners have given up.
&gt;
&gt; Two more notes:
&gt; I've just completed a second model using 4.10, and am now running a second
&gt; 4.12 model. The first is just past
&gt; 230 hours, (32.56%), and the second is just short of 17 hours.
&gt; and 2)
&gt; one doesn't pick which hadsm version to run. You get whatever is available
&gt; from the pool of parameter sets.
&gt;
&gt; Les
&gt;
&gt;Les - Thanks for the explanation on the model- i did not realise that it was a random selection from the pool - the only solace i have is that until I upgraded to BOINC 4.25 I was happily running CPDN models. So even though my boot drive is f: previous CPDN SW was fine. Maybe the new model exercises some different older code. Oh well - I'm probably going to give up on cpdn for a while. The crashes mess up my desktop, erase buttons on my browser and erase WU from other projects so I can't really live with them.
9) Questions and Answers : Windows : climate prediction crashes (Message 11826)
Posted 14 Apr 2005 by Profile old_user35334
Post:
&gt; &gt; Hi Dave
&gt; &gt; You should be running OK with those specs. We'll need a bit more info, so
&gt; here
&gt; &gt; goes.
&gt; &gt;
&gt; &gt; Do you have an ATI graphics card? Some people are currently having
&gt; problems
&gt; &gt; with some versions of these cards.
&gt; &gt; Does the crash happen when you look at the visualisation? Or consistently
&gt; at
&gt; &gt; some other point?
&gt; &gt; Perhaps when you run some other program? Do you have the screen saver on
&gt; or
&gt; &gt; off?
&gt; &gt;
&gt; &gt; You may like to keep an eye on <a>
&gt; href="http://www.climateprediction.net/board/viewtopic.php?t=2822"&gt;
&gt; this</a>
&gt; &gt; thread on the subject.
&gt; &gt;
&gt; &gt; Les
&gt; &gt;
&gt; &gt;Hi Les,
&gt;
&gt; thanks for the response.
&gt; I don't use the BOINC screen saver and never look at the visualisation. I use
&gt; the regular windows screensaver. Crash seems to happen quite quickly after the
&gt; new WU downloads- not sure that it even really starts up. Sometimes i get a
&gt; popup with a memory exception and sometimes a fortran error. you can see from
&gt; my work history that i compeleted a couple of units with no problem. I then
&gt; did the upgrade to 4.25 - from then the client has tried to download new WUs
&gt; and they all crash. I have not added any apps between WUs. In fact - i was
&gt; running 4.19 - was perhaps 24hrs into a WU. suspended - did the upgrade and
&gt; then the problems started. even a full uninstall/reinstall of BOINC has not
&gt; helped. The crash does not seem to be associated with a particular program
&gt; that I am running - it happens spontaneously as far as i can tell.
&gt;
&gt; I have an NVidia graphics card (ASUS 9560 with the NVidia GeForce FX5600 with
&gt; 128MB of RAM and the latest drivers (7184)). My motherboard is an ASUS
&gt; P4C800DX - which has the intel 875P chipset with 800MHz FSB. I have 1G of
&gt; Corsair PC3700 RAM which if anything is underclocked as its good to 233MHz,
&gt; not the 200MHz I am runnning. currently my system clock is 200MHz so
&gt; everything is setup to spec, plus temepratures are low and stress test passes.
&gt; My PC is hyperthreaded so it runs 2 models at once (seems to appear as 2
&gt; processors to BOINC)- again was not a problem until i upgraded. I get 100%
&gt; CPU utilisation when it is running 2 models.
&gt;
&gt; I have 80G of HD free (SATA RAID pair - Promise controller on the motherboard)
&gt; with 5G allocated to BOINC. I am running WinXP SP2 fully patched, with the
&gt; windows firewall off (as i have a HW firewall) and AntiVir for virus
&gt; protection.
&gt;
&gt; The only slightly unusal thing about my PC is that my boot drive is f: - does
&gt; your 4.2x SW expect the main drive to be c: ? I know of one simulator
&gt; (Matlab)that expects to run from c: - did you use Matlab to generate the math
&gt; code ?
&gt;
&gt; BTW - the model that was running was hadsm3um_4.10_windows_intelx86 I notice
&gt; that 4.12 is now available so i am going to try it.
&gt;
&gt; Dave
&gt;
&gt;

update 4.12 crashes as well - totally corrupts my windows envrinoment. fonts in web browser. i ran with no anti virus so its not an interaction. i'm going to uninstall BOINC again and stop running cpdn for a few months.
10) Questions and Answers : Windows : climate prediction crashes (Message 11813)
Posted 13 Apr 2005 by Profile old_user35334
Post:
&gt; Hi Dave
&gt; You should be running OK with those specs. We'll need a bit more info, so here
&gt; goes.
&gt;
&gt; Do you have an ATI graphics card? Some people are currently having problems
&gt; with some versions of these cards.
&gt; Does the crash happen when you look at the visualisation? Or consistently at
&gt; some other point?
&gt; Perhaps when you run some other program? Do you have the screen saver on or
&gt; off?
&gt;
&gt; You may like to keep an eye on <a> href="http://www.climateprediction.net/board/viewtopic.php?t=2822"&gt; this</a>
&gt; thread on the subject.
&gt;
&gt; Les
&gt;
&gt;Hi Les,

thanks for the response.
I don't use the BOINC screen saver and never look at the visualisation. I use the regular windows screensaver. Crash seems to happen quite quickly after the new WU downloads- not sure that it even really starts up. Sometimes i get a popup with a memory exception and sometimes a fortran error. you can see from my work history that i compeleted a couple of units with no problem. I then did the upgrade to 4.25 - from then the client has tried to download new WUs and they all crash. I have not added any apps between WUs. In fact - i was running 4.19 - was perhaps 24hrs into a WU. suspended - did the upgrade and then the problems started. even a full uninstall/reinstall of BOINC has not helped. The crash does not seem to be associated with a particular program that I am running - it happens spontaneously as far as i can tell.

I have an NVidia graphics card (ASUS 9560 with the NVidia GeForce FX5600 with 128MB of RAM and the latest drivers (7184)). My motherboard is an ASUS P4C800DX - which has the intel 875P chipset with 800MHz FSB. I have 1G of Corsair PC3700 RAM which if anything is underclocked as its good to 233MHz, not the 200MHz I am runnning. currently my system clock is 200MHz so everything is setup to spec, plus temepratures are low and stress test passes. My PC is hyperthreaded so it runs 2 models at once (seems to appear as 2 processors to BOINC)- again was not a problem until i upgraded. I get 100% CPU utilisation when it is running 2 models.

I have 80G of HD free (SATA RAID pair - Promise controller on the motherboard) with 5G allocated to BOINC. I am running WinXP SP2 fully patched, with the windows firewall off (as i have a HW firewall) and AntiVir for virus protection.

The only slightly unusal thing about my PC is that my boot drive is f: - does your 4.2x SW expect the main drive to be c: ? I know of one simulator (Matlab)that expects to run from c: - did you use Matlab to generate the math code ?

BTW - the model that was running was hadsm3um_4.10_windows_intelx86 I notice that 4.12 is now available so i am going to try it.

Dave
11) Questions and Answers : Windows : Since BOINC 4.2x problems with CPDN (Message 11790)
Posted 13 Apr 2005 by Profile old_user35334
Post:
&gt; Your situtation sounds similar to mine.
&gt; http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_thread.php?id=2164
&gt;
&gt; I don't think it has anything to do with the BOINC version but rather the new
&gt; 4.10 Application issued by ClimatePrediction, and I think as more people
&gt; finish their older 4.03/4.04 WUs we'll here more people having these problems
&gt; as well.
&gt;
&gt; Unfortunately, for now I've had to disconect the machines that received new
&gt; WUs since I've received no infomration as to the cause.
&gt;

I have the same issue - after i upgraded to 4.25 , CPDN crashes after a few minutes. even after downgrading to 4.19 it does the same
12) Questions and Answers : Windows : Issues with CPDN and BOINC v4.25? (Message 11789)
Posted 13 Apr 2005 by Profile old_user35334
Post:
&gt; Hello John
&gt;
&gt; I think it's a matter of "You win some, you lose some".
&gt; I had a 'zero status ......' problem a while back, but it completed
&gt; successfully.
&gt;
&gt; You have lost 248t. The new model, 248v is independant from this.
&gt; It's odd that the numbers are so similar, but I guess this can happen.
&gt;
&gt; As for your other problems, the BOINC viz and screen saver should be
&gt; independant.
&gt; All of your graphics problems could be related, and be something to do with
&gt; your graphics card.
&gt; Apparently, (some) ATI cards are not BOINC-friendly, and there may be other
&gt; issues.
&gt;
&gt; As for 4.19 vs 4.25, I'm not having problems. The 4.10 model now has a bit
&gt; over 100 hours to go,
&gt; and the 4.12 model has been running for nearly 113 hours.
&gt;
&gt; You could do a backup and go back to 4.19 until you have more time, but I'm
&gt; not sure of the proceedure.
&gt;
&gt; And my previous computer is still running windows 3.11 (Windows for
&gt; workgroups).
&gt; I have a lot of old programs/games that don't work on the newer systems.
&gt; But XP has some nice bits.
&gt;
&gt; Les
&gt;
&gt;I have the same issue - i updated to 4.25 - crashed CPDN - now cannot get it to run at all. even after going back to 4.19 - i have winXP - on a fully stress tested and benchmarked fast PC - i previously completed 2 WUs on 4.1x - seti, einstein and protein predictor all run fine - so really suspect the SW, not my PC
13) Questions and Answers : Windows : climate prediction crashes (Message 11788)
Posted 13 Apr 2005 by Profile old_user35334
Post:

I am getting constant crashes of climate predictor after moving up to 4.25 and back to 4.19.

I upgraded to Boinc 4.25 and restarted processing projects. Boinc crashed after a few minutes and produced client errors on all my projects.
I lost all the credit for the work in prgress.
I then uninstalled and went back to 4.19. seti, einstein and predictor are OK but everytime i run climate predictor the same happens. After the crash my windows/desktop become corrupted. i also get fortran error popups after the crash on occasion. This seems to be specific to climate predictor as all other Boinc projects are working fine.
Before my upgrade to 4.25 I successfully completed 2 WUs each of which ran for saround 600 hours continuously with no problem.


i have stress tested and benchmarked my pc - both CPU and memory. CPU temp is under 55C even at 100% load so not likely to be my HW. I have un-installed and reinstalled 4.19 but did not improve things. For now i am running the other projects but would like to process climate projects as i have a P4 3G with plenty of RAM so can contribute to the longer project quite well. Any thoughts ?








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