boinc 6.10.17 on Ubuntu 10.04 impossibly slow


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Questions and Answers : Unix/Linux : boinc 6.10.17 on Ubuntu 10.04 impossibly slow

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Bill Ezell
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Message 996512 - Posted: 15 May 2010, 19:47:03 UTC

I just installed on a new Ubuntu system. Boinc runs, but at the rate it's processing, it's going to take pretty close to forever to produce any results.

The CPU is an AMD Athlon II X2 250. Benchmarks look ok (2098 fmips, 4362 imips), but the active setiathome_enhanced 5.13 task has been running for 80 hours and is only 5% done! I've given boic 100% cpu and everything else I can think of. It's definitely running, just not getting anywhere.

Any suggestions?
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Message 996517 - Posted: 15 May 2010, 20:15:58 UTC

Are you using optimized applications on the machine?
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Profile Gundolf Jahn
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Message 996536 - Posted: 15 May 2010, 22:18:01 UTC - in response to Message 996512.

The CPU is an AMD Athlon II X2 250. Benchmarks look ok (2098 fmips, 4362 imips)...

The online computer details of your linux AMD host show
Measured floating point speed 1751.44 million ops/sec Measured integer speed 6771.98 million ops/sec

There should be two tasks running on that host.

Are you sure that the CPU is running at 100%? No energy-saving mode (or some such) enabled?

Gruß,
Gundolf
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Message 996542 - Posted: 15 May 2010, 22:59:33 UTC

I ran into that last night during an experiment, it is the speed stepping kicking in.
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Message 996548 - Posted: 15 May 2010, 23:32:34 UTC - in response to Message 996542.

probably AMD cool and quiet. you'll want that disabled in the CMOS
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Bill Ezell
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Message 996549 - Posted: 15 May 2010, 23:34:13 UTC - in response to Message 996536.

Yes, there actually are 2 tasks, one per cpu.
Both are running at the same glacially slow speed.
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Bill Ezell
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Message 996553 - Posted: 16 May 2010, 0:02:54 UTC

Thanks all, it was indeed the power stepping. On this computer (HP), there doesn't appear to be a bios setting to disable it. So, I used the Gnome cpu speed applet and set both cpus to full. Of course, it now sounds like a 747 at full takeoff power. :)
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Questions and Answers : Unix/Linux : boinc 6.10.17 on Ubuntu 10.04 impossibly slow

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