climateprediction.net (CPDN) home page
Thread 'outta here'

Thread 'outta here'

Message boards : Number crunching : outta here
Message board moderation

To post messages, you must log in.

AuthorMessage
old_user25042

Send message
Joined: 15 Oct 04
Posts: 1
Credit: 6,550
RAC: 0
Message 6126 - Posted: 15 Nov 2004, 17:45:25 UTC

got tired of CP locking up my system. boinc fine, seti not causeing problems, just cp. detached.
ID: 6126 · Report as offensive     Reply Quote
old_user909

Send message
Joined: 17 Aug 04
Posts: 56
Credit: 63,814
RAC: 0
Message 6244 - Posted: 19 Nov 2004, 20:48:04 UTC

Yeah... the CPDN client definitely does something that most other DC projects don't and that my CPU doesn't like at all. My system withstood over 10 hours of prime95's torture test with no errors but locked up hard within a couple minutes of starting CPDN. I was able to finish my last model by underclocking my system to 200 MHz below stock speed. I think I might try a model on my other good box and see how it turns out there. Anyone have any clue as to what CPDN is doing that might cause this? Maybe if you take out the function call to crash_cpu()? :)
ID: 6244 · Report as offensive     Reply Quote
Profilegeophi
Volunteer moderator

Send message
Joined: 7 Aug 04
Posts: 2187
Credit: 64,822,615
RAC: 5,275
Message 6250 - Posted: 20 Nov 2004, 0:23:06 UTC - in response to Message 6244.  

> Maybe if you take out the function call to crash_cpu()? :)

Toby,

Not sure what's up with some configurations that are having problems. My last nine models have all completed without error, with two more that will finish in the next few days.

The computers I'm running them on are pretty much dedicated to crunching, and only CPDN. They aren't overclocked but running tight memory timings.

I certainly don't have an answer for you.
ID: 6250 · Report as offensive     Reply Quote
old_user1
Avatar

Send message
Joined: 5 Aug 04
Posts: 907
Credit: 299,864
RAC: 0
Message 6261 - Posted: 20 Nov 2004, 9:56:12 UTC - in response to Message 6244.  

Sorry, it's just not for every system unfortunately. You have to bear in mind that this is a huge supercomputer codebase that we are trying to run on PCs, so it's not as simple to implement for all system types as other projects.
ID: 6261 · Report as offensive     Reply Quote
old_user20295

Send message
Joined: 23 Sep 04
Posts: 3
Credit: 143,109
RAC: 0
Message 6273 - Posted: 20 Nov 2004, 17:55:51 UTC - in response to Message 6244.  

> Yeah... the CPDN client definitely does something that most other DC projects
> don't and that my CPU doesn't like at all. My system withstood over 10 hours
> of prime95's torture test with no errors but locked up hard within a couple
> minutes of starting CPDN. I was able to finish my last model by underclocking
> my system to 200 MHz below stock speed. I think I might try a model on my
> other good box and see how it turns out there. Anyone have any clue as to
> what CPDN is doing that might cause this? Maybe if you take out the function
> call to crash_cpu()? :)
>

I also noticed my cpu temperature is higher with CPDN than with other boinc
projects.

Regards Hans
ID: 6273 · Report as offensive     Reply Quote
ProfileAndrew Hingston
Volunteer moderator

Send message
Joined: 17 Aug 04
Posts: 753
Credit: 9,804,700
RAC: 0
Message 6277 - Posted: 20 Nov 2004, 18:44:45 UTC - in response to Message 6273.  


>
> I also noticed my cpu temperature is higher with CPDN than with other boinc
> projects.

Yes. CPDN is a very demanding application, and there is advice <a href="http://www.climateprediction.net/board/viewforum.php?f=23">here</a> especially in the hardware maintenance announcement. The power supply and cooling on some machines is simply not up to the job, and dust etc makes things much worse.
ID: 6277 · Report as offensive     Reply Quote
Profileold_user20278

Send message
Joined: 23 Sep 04
Posts: 1
Credit: 6,252
RAC: 0
Message 6287 - Posted: 21 Nov 2004, 2:48:48 UTC

I've had it with the computer slowing down and locking up. So I'm going to quit cp. My question is, does the work my computer has already done on its first (and soon to be only) project get lost if I simply quit right now? Or do I have to finish this run (which will be finished in about two weeks). Anyone?

Also, how do you quit? Do you simply quite the cp client and forget about it? Or is there more to it?
ID: 6287 · Report as offensive     Reply Quote
old_user760
Avatar

Send message
Joined: 10 Aug 04
Posts: 94
Credit: 309,849
RAC: 0
Message 6289 - Posted: 21 Nov 2004, 7:29:24 UTC - in response to Message 6277.  
Last modified: 21 Nov 2004, 7:33:47 UTC

&gt;
&gt; &gt;
&gt; &gt; I also noticed my cpu temperature is higher with CPDN than with other
&gt; boinc
&gt; &gt; projects.
&gt;
&gt; Yes. CPDN is a very demanding application, and there is advice <a> href="http://www.climateprediction.net/board/viewforum.php?f=23"&gt;here</a>
&gt; especially in the hardware maintenance announcement. The power supply and
&gt; cooling on some machines is simply not up to the job, and dust etc makes
&gt; things much worse.
&gt;
CPDN really gives the CPU a work out. My 3.4 is liquid cooled so no problem, but the 3.2G HT P-IV and 2.8G HT P-IV use heat sinks. I have had to manually set the fan speeds to max just to keep the CPU at below 51c on the 3.2 and below 49c on the 2.8. Good housekeeping is also essential. I clean everything out about every month or so. I don't bother to overclock because of all the attendant headaches that go along with it.

On the plus side, I haven't had to use the centeral room heating at all so far this year. I just run the fan and let the computers provide all the heat. :-)
ID: 6289 · Report as offensive     Reply Quote
ProfileAndrew Hingston
Volunteer moderator

Send message
Joined: 17 Aug 04
Posts: 753
Credit: 9,804,700
RAC: 0
Message 6292 - Posted: 21 Nov 2004, 8:54:41 UTC - in response to Message 6287.  

&gt; I've had it with the computer slowing down and locking up. So I'm going to
&gt; quit cp. My question is, does the work my computer has already done on its
&gt; first (and soon to be only) project get lost if I simply quit right now? Or do
&gt; I have to finish this run (which will be finished in about two weeks).
&gt; Anyone?

Yes, you have to finish the run for the results to be useful. The intermediate and end of phase trickles return very little data to the server; most of the results are uploaded at the end of the run.

&gt; Also, how do you quit? Do you simply quite the cp client and forget about it?
&gt; Or is there more to it?

At the moment there is no simple way of telling BOINC that you want to stop doing a project at the end of the current WU. It is discussed in <a href="http://climateapps2.oucs.ox.ac.uk/cpdnboinc/forum_thread.php?id=1282">this thread</a>. To detach right click on CPDN in the projects tab, but it takes effect immediately.
ID: 6292 · Report as offensive     Reply Quote
Profileold_user16598

Send message
Joined: 11 Sep 04
Posts: 9
Credit: 321,368
RAC: 0
Message 6483 - Posted: 30 Nov 2004, 8:45:24 UTC - in response to Message 6292.  

I have 5 AMDs ranging from an XP1800 up to an A64 system and all of them except the 1800+ are overclocked with very tight memory timings. I haven't had any of them crash or hang though. I am guessing you have some other problem that CPDN is just making apparent. All of my machines are home made.
ID: 6483 · Report as offensive     Reply Quote

Message boards : Number crunching : outta here

©2024 cpdn.org