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Les Bayliss
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Message 58582 - Posted: 9 Aug 2018, 21:51:54 UTC

My first 4 from batch 742 passed the zip 12 + restart files point late yesterday.
The restarts are a little over 111 Megs.

And my old HP computer which suffered a hd failure, now has a nice new hd.
(HPs are really great to work with, with all of the hinged cages for getting at things.)
Because I didn't have a disk with Windows 7 on it, I couldn't get the data back, so it's now running Mint 18.3 + Wine + BOINC (Windows).

And it has 7 batch 742, 5 of them with 1 failure, and 2 with 2 failures.

3 of the 1s and one of the 2s are running, and all have passed the zip 2 point.

So I don't know why so many computers can't run them.
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Les Bayliss
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Message 58586 - Posted: 10 Aug 2018, 7:47:37 UTC

The first 4 have now completed.
"out" files are about 315-120 Kb.
About 8.5 days to complete.
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Jim1348

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Message 58587 - Posted: 10 Aug 2018, 14:41:11 UTC - in response to Message 58586.  

The first 4 have now completed.
"out" files are about 315-120 Kb.
About 8.5 days to complete.

Are you running on full cores? They are taking a little over 9 days on my i7-4771 (Win7 64-bit), even though I have limited it to 4 virtual cores, with nothing but desktop use on the other cores.
(And I am not overclocking.) I have been wondering how useful hyperthreading is on CPDN.
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Message 58588 - Posted: 10 Aug 2018, 15:42:23 UTC - in response to Message 58587.  

I have been wondering how useful hyperthreading is on CPDN.


I used to have a 32-bit computer with two 3.06 GHz hyperthreaded Xeon processor chips, 8 GBytes RAM, etc. Running Linux.

So it thought I had four processors. I ran somewhat faster than when I turned on hyperthreading, but by no means twice as fast.

I have a newer 64-bit machine now with one 1.8 GHz Xeon 4-core processor, and it seems to run work units of other projects just as fast as before. I do not know if the architecture is responsible, that 64-bits is better, or that the Linux OS is better.

And I cannot tell about Climate Prediction, since there are no Linux tasks being offered.
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Jim1348

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Message 58589 - Posted: 10 Aug 2018, 15:49:06 UTC - in response to Message 58588.  
Last modified: 10 Aug 2018, 16:13:54 UTC

So it thought I had four processors. I ran somewhat faster than when I turned on hyperthreading, but by no means twice as fast.

Hyperthreading allows you to run more threads than the real cores you have, usually with an increase in total output. But I am limiting CPDN to four virtual cores, which is the same as the number of real cores. So my issue is whether I would just do better by turning off HT. I have had suspicions in the past that might help, especially since CPDN is based on older code that might not benefit from HT much. (I think I will just turn it off for the next batch, and see.)
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Les Bayliss
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Message 58592 - Posted: 11 Aug 2018, 2:39:36 UTC

When the nam50's showed up, I received 8 of them, and, not having run that many at once for years, I let all of them run.
Which slowed down the computer badly, and took 4.5 days to complete.
So for the next batch, I did what I've done for years, and Suspended 4 of them while they were still downloading.
The 4 that were left took 2 days to run, so same as I've always found it to be: only run 4 at a time.
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Message 58594 - Posted: 11 Aug 2018, 9:43:38 UTC - in response to Message 58592.  

OK, thanks. I now have a second Windows machine (an i-4790) on it, and the SAM25's seem to be doing fine with hyperthreading, so I will leave it on for now.
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Message 58663 - Posted: 29 Aug 2018, 7:06:24 UTC

I have 4 WUs from batch 742 running on i5-2520M CPU @ 2.50GHz (2 real cores) and so far these WUs are at 26 days completed below 90%. I expect them to run at 5-7 days more. Avg sec/TS at around 17.2 when all 4 are running. First zips at 14.8 and climbing. Haven't tried it on the i7-4790 with WINE yet.
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Profile Dave Jackson
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Message 58664 - Posted: 29 Aug 2018, 8:07:33 UTC - in response to Message 58582.  

(HPs are really great to work with, with all of the hinged cages for getting at things.)


They might be now but I remember a time when they were a real pain with lots of proprietary bits so it was difficult to find things to fit. One I worked on had non standard motherboard fittings so I couldn't change it without drilling some new holes to fit risers into.
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Message 58670 - Posted: 1 Sep 2018, 8:36:13 UTC - in response to Message 58663.  

I figured out why it takes 30 days to complete these 742s on i5-2520M. My laptop overheats and reduces the frequency to 797 MHz for few seconds so it seems half of time runs at this frequency. Even with 2 WUs it is too hot. Need to do some clean up and than will see
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Message 58672 - Posted: 1 Sep 2018, 18:01:43 UTC - in response to Message 58670.  

I figured out why it takes 30 days to complete these 742s on i5-2520M. My laptop overheats and reduces the frequency to 797 MHz for few seconds so it seems half of time runs at this frequency. Even with 2 WUs it is too hot. Need to do some clean up and than will see

Besides cleaning out the vents, a cooling pad would help if that's something you're willing to deal with. Even a platform that tilts/raises the bottom of it off the desk so more air can move around may be somewhat helpful.
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Message 58673 - Posted: 1 Sep 2018, 18:20:59 UTC - in response to Message 58672.  

Yes, mine runs noticeably cooler if I put something under it to raise it a bit, though it only slowed down without doing that when the temperature was up around 30C this summer.
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Message 58676 - Posted: 1 Sep 2018, 19:39:04 UTC - in response to Message 58673.  

All my laptops are lifted for better air circulation. I cleaned the fans and put new thermal paste on two of them. The T61 runs 10 degrees cooler 74-75 deg, the T420/i5-2520M runs 20 degree cooler though at 2 WUs for the moment.
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