If you enable floating-point exceptions, you will get a bunch of errors with recent GNU compilers. I tried some time ago to track down them. All I found was a few harmless underflows (exponentials of large negative numbers) that I fixed. Since I didn't find any evidence of serious problems, nor any clue on the origin of IEEE_DENORMAL messages, I decided that t wasn't worth to investigate further
Paolo On Sat, Nov 21, 2015 at 12:07 AM, Hugo Siles <[email protected]> wrote: > Hello, > > I have installed espresso-5.2.1 on fedora 22, with some minor > difficulties, but it has been installed, I run all the tests, and as far as > I could see all of them passed. > However when running one of the samples from the tutorials with the > following command: > pw.x <Si.sample.in> Si.sample.out > I get the following message during execution: > > [hsiles@localhost exercise1]$ pw.x <Si.sample.in> Si.sample.out > Note: The following floating-point exceptions are signalling: > IEEE_INVALID_FLAG IEEE_DENORMAL. > > There is an output file > > Does the message means any thing to worry about ?? > > > > > _______________________________________________ > Pw_forum mailing list > [email protected] > http://pwscf.org/mailman/listinfo/pw_forum > -- Paolo Giannozzi, Dept. Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222
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