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illegal instruction exception at model start

illegal instruction exception at model start

Questions and Answers : Unix/Linux : illegal instruction exception at model start
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Rob Clive

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Message 36464 - Posted: 25 Mar 2009, 11:34:51 UTC

My computer successfully completed a wu but to date has downloaded and crashed out of 6 new ones. Every time it\'s an SIGILL (illegal instruction) exception. Should I just leave it until it finds one it likes the look of? I tried resetting the project but that hasn\'t changed anything.
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Profile geophi
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Message 36465 - Posted: 25 Mar 2009, 12:18:22 UTC

The ones that have been crashing are hadam3p models. Perhaps change the model preferences in your climateprediction.net preferences of Your Account link to hadsm3 or hadsm3mh. I don\'t know if anyone tested this newer model with an original Athlon in Linux. Could be an SSE or SSE2 problem.
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Rob Clive

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Message 36467 - Posted: 25 Mar 2009, 16:42:48 UTC

Thanks for the pointer. I\'ve modded the prefs to select only sm3 and sm3mh so we shall see. Isn\'t technology wonderful? :-)
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Rob Clive

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Message 36482 - Posted: 26 Mar 2009, 10:16:29 UTC

That did indeed fix it. Clearly there\'s some issue with the newer models and \'old\' cpus. Is it feasible / possible to compile a list of compatible processors?
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Message 36487 - Posted: 26 Mar 2009, 16:42:00 UTC

If it is indeed a necessity to have SSE2, then on the Intel side, anything less than an Pentium 4, or Pentium 4 based Celeron, will crash. On the AMD side, any AthlonXP, Duron or older processors will not work.
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Questions and Answers : Unix/Linux : illegal instruction exception at model start

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