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Donnie Berkholz wrote: |
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|
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> Adam Pi±tyszek wrote: |
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> |
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>>I have just tested your autotooled *-reference ebuilds... |
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>>does not work (cholesky_test from IT++ package goes into an endless loop). |
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> |
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> ... |
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> |
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> That's an odd problem. I'd expect at least undefined functions or |
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> something obvious, not a random loop. I'll take a look at it soon, maybe |
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> I missed something obvious. |
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|
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May that be related to the DLAMC3 problem reported at |
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http://www.theochem.kth.se/dalton/faq.html near the end of the page? The |
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links to the Fedora bugzilla work no more, but as far as I remember the |
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infinite loop arises somehow from incorrect machine precision |
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assumptions due to excessive precision of numbers in registers, not |
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complient to the IEEE standard. So I try (althoug rather with the atlas |
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libraries than with the reference ones) using -mieee-fp compiler flag |
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rather than -ffloat-store recomended at the Dalton page (and -O1 rather |
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than -O2 on my AMD machines -- both athlon xp and k8 architectures -- |
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due to other problem, that is too obscure to me so far for me to be even |
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able to file a reasonable bugzilla entry). |
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If that is the case, than the key to the malfunction may be in the |
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compiler flags, and the ebuilds could be improved by some flags checking |
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and mangling, otherwise being OK. |
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|
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Honza Macháèek |
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-- |
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