Which is the best CPU configuration?


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Message boards : Number crunching : Which is the best CPU configuration?

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Profile tullioProject donor
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Message 1280305 - Posted: 5 Sep 2012, 16:10:17 UTC - in response to Message 1280291.

My HP laptop seems to go in hibernation mode when I don't type anything for 20 minutes, so I leave it running all night with its BOINC projects running. But I don't know if it does any work at night. Anyway it survived a heat wave which caused me to stop the SUN WS in the afternoons because its fans were screaming.
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Message 1280308 - Posted: 5 Sep 2012, 16:35:13 UTC - in response to Message 1280271.
Last modified: 5 Sep 2012, 16:37:17 UTC

It has 8 processors. What would be a good configuration. 8 CORES AT 100%, 100% of the time, 4 cores 100% etc etc. Just trying to keep it fairly cool for longevity,but at the same time running seti at a good pace.

You simply have to try it with 8 cores @100% and watch the temperatures (also of the hard drive, that can get hot on some laptops too if the CPU is @100%), if it gets to hot try 4 cores @100%, that way all physical cores should be still in use, but not pushed that hard.

What helps to keep the temperatures down is to lift the laptop a bit in the back, so there is more air under it. As a nice side effect it also brings the keyboard into more ergonomic position.
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Message 1280310 - Posted: 5 Sep 2012, 16:40:55 UTC - in response to Message 1280305.

My HP laptop seems to go in hibernation mode when I don't type anything for 20 minutes

Check your energy settings, you can disable it there.
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Message 1280314 - Posted: 5 Sep 2012, 16:45:15 UTC - in response to Message 1280308.

Link, thanks for the response. It seems as though I'm on the right track. I just have to keep trying to narrow it down, so that it is running seti as hard as it can without overheating. I do prop it up so that it gets max air circulation. My other laptop I run 4 70 mm fans at it keeps cool, but it's in a differant room that I don't use much so noise fan noise is not an issue. Thinking of running this one on a cooling pad as well, but only let it run seti from the time I go to bed until I wake up. And I was thinking running it 100% that whole period on all cores.
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Message 1280316 - Posted: 5 Sep 2012, 16:49:22 UTC - in response to Message 1280305.

My HP laptop seems to go in hibernation mode when I don't type anything for 20 minutes, so I leave it running all night with its BOINC projects running. But I don't know if it does any work at night. Anyway it survived a heat wave which caused me to stop the SUN WS in the afternoons because its fans were screaming.
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In your power settings on your laptop (click the battery icon) you have choices as to what the laptop can do when you close the lid. Mine would go to sleep when I closed the cover, so I set it to do nothing when closing the lid, and Seti runs until I open it again. Check your preferances also and see what they say and make adjustments in there. Hopefully it will work for you. :-)>

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Message 1280329 - Posted: 5 Sep 2012, 17:12:31 UTC - in response to Message 1280314.
Last modified: 5 Sep 2012, 17:15:48 UTC

Thinking of running this one on a cooling pad

Those cooling pads are just noisy ineffective crap, at least all I've seen so far. Better lift the laptop in the back a little and use some quiet 80mm fan to blow air under it, that's how I do it (on hot days).



but only let it run seti from the time I go to bed until I wake up. And I was thinking running it 100% that whole period on all cores.

Temperature fluctuations are actually worse than constantly high (not too high) temperature, so unless it's to noisy for you to work with it, I'd not recommend that.



so I set it to do nothing when closing the lid, and Seti runs until I open it again.

I did that once, when I got back this poor thing was hot like never before, so I'd never do it again, specially if the laptop is crunching.
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Message 1280338 - Posted: 5 Sep 2012, 17:32:26 UTC

ok.....read through this thread....but....how does one configure this to happen? In the prefs it only allows you to deal with % not selecting cores. Does this have to be done in one of the files manually?
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Message 1280342 - Posted: 5 Sep 2012, 17:48:25 UTC - in response to Message 1280338.
Last modified: 5 Sep 2012, 17:48:43 UTC

ok.....read through this thread....but....how does one configure this to happen? In the prefs it only allows you to deal with % not selecting cores. Does this have to be done in one of the files manually?

8 cores is 100%, 7 cores is 87.5%, 6 cores is 75%, 5 cores is 62.5%, 4 cores is 50%, etc,

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Message 1280344 - Posted: 5 Sep 2012, 17:53:37 UTC - in response to Message 1280342.

Thanks Claggy, I've got mine set at 6 cores and 75%. It seems to do the trick. Probably going to stay with that. I love my laptop, it's never failed me, and I think this is a good all around config. I could be wrong, but it's working ok.
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Message 1280350 - Posted: 5 Sep 2012, 18:08:46 UTC

Laptop crunchers, remember to clean those vents! Ivan posted a link that's gonna be giving nightmares:)

http://setiathome.berkeley.edu/forum_thread.php?id=69214&postid=1279380#1279380

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Message 1280361 - Posted: 5 Sep 2012, 18:34:06 UTC

Going out to get a can of blow off air today. I'm running mid 70's cpu, and 70c on the gpu under 88% load on this i7 rig. Intel says 100c is max,and that is what real temp is saying also.
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Message 1280424 - Posted: 5 Sep 2012, 21:51:45 UTC - in response to Message 1280342.

ok.....read through this thread....but....how does one configure this to happen? In the prefs it only allows you to deal with % not selecting cores. Does this have to be done in one of the files manually?

8 cores is 100%, 7 cores is 87.5%, 6 cores is 75%, 5 cores is 62.5%, 4 cores is 50%, etc,

Claggy


Ha, yes, obviously that I know! People keep mentioning that you can select cores instead of a percentage amount, seen it in a number of threads, including this one. People talk about the start/stop vs the full dedication.
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Message 1280444 - Posted: 5 Sep 2012, 23:14:06 UTC - in response to Message 1280344.

I have 3 of 4 cores at 100%
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Message 1283246 - Posted: 13 Sep 2012, 15:31:53 UTC - in response to Message 1283225.

Link, on 6 cores at 80% my lappy runs in the mid 70's C. So I bought a cooler master laptop pad with a 140 mm single fan with adjustable fan speed. I'm telling ya, if you want to cool a laptop down this one does the trick. I tested it yesterday and with the fan on high (you can;t even hear it) it dropped the temps 14c. The air coming out of the exhaust port is almost cold. I couldn't beleive it. I'm going to run 8 cores at aroun 90% and see wehat happens.

Well, they might have got better now. The last time I was searching for them was when my laptop was almost new... and that was 5 or more years ago now that I think of that. At that time these pads were pretty much nothing to have and once I figured out how to undervolt the CPU, I didn't need one anyway or only on hot days.
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Message 1287259 - Posted: 24 Sep 2012, 0:10:46 UTC

24-09-2012 00:24:15 | | Starting BOINC client version 7.0.28 for windows_x86_64
24-09-2012 00:24:15 | | log flags: file_xfer, sched_ops, task
24-09-2012 00:24:15 | | Libraries: libcurl/7.25.0 OpenSSL/1.0.1 zlib/1.2.6
24-09-2012 00:24:15 | | Data directory: C:\ProgramData\BOINC
24-09-2012 00:24:15 | | Running under account Zapiao
24-09-2012 00:24:15 | | Processor: 4 GenuineIntel Intel(R) Core(TM) i3 CPU M 380 @ 2.53GHz [Family 6 Model 37 Stepping 5]
24-09-2012 00:24:15 | | Processor: 256.00 KB cache
24-09-2012 00:24:15 | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 syscall nx lm vmx tm2 popcnt pbe
24-09-2012 00:24:15 | | OS: Microsoft Windows 7: Home Premium x64 Edition, Service Pack 1, (06.01.7601.00)
24-09-2012 00:24:15 | | Memory: 2.99 GB physical, 5.97 GB virtual
24-09-2012 00:24:15 | | Disk: 149.04 GB total, 81.46 GB free
24-09-2012 00:24:15 | | Local time is UTC +1 hours
24-09-2012 00:24:15 | | ATI GPU 0: Cedar (CAL version 1.4.1741, 512MB, 479MB available, 240 GFLOPS peak)
24-09-2012 00:24:15 | | OpenCL: ATI GPU 0: Cedar (driver version CAL 1.4.1741 (VM), device version OpenCL 1.2 AMD-APP (938.2), 512MB, 479MB available)
24-09-2012 00:24:15 | SETI@home | Found app_info.xml; using anonymous platform
24-09-2012 00:24:15 | | Config: report completed tasks immediately
24-09-2012 00:24:15 | | Config: use all coprocessors
24-09-2012 00:24:15 | SETI@home | URL http://setiathome.berkeley.edu/; Computer ID 6755411; resource share 100
24-09-2012 00:24:15 | SETI@home | General prefs: from SETI@home (last modified 16-Sep-2012 19:06:44)
24-09-2012 00:24:15 | SETI@home | Computer location: home
24-09-2012 00:24:15 | SETI@home | General prefs: no separate prefs for home; using your defaults
24-09-2012 00:24:15 | | Reading preferences override file
24-09-2012 00:24:15 | | Preferences:
24-09-2012 00:24:15 | | max memory usage when active: 3058.67MB
24-09-2012 00:24:15 | | max memory usage when idle: 3058.67MB
24-09-2012 00:24:15 | | max disk usage: 1.00GB
24-09-2012 00:24:15 | | (to change preferences, visit the web site of an attached project, or select Preferences in the Manager)
24-09-2012 00:24:15 | | Not using a proxy
For this configuration how can i fine tunning Seti? What would be the best cc_config and app info ?
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Message boards : Number crunching : Which is the best CPU configuration?

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