From: "Dominique d'Humières" <dominiq@lps.ens.fr>
To: Janus Weil <janus@gcc.gnu.org>
Cc: gfortran <fortran@gcc.gnu.org>
Subject: Re: [Patch, Fortran] PR 82143: add a -fdefault-real-16 flag
Date: Mon, 18 Sep 2017 09:38:00 -0000 [thread overview]
Message-ID: <E0470FA0-44B5-465E-BD5E-716F44F752CC@lps.ens.fr> (raw)
For the record, I just stumbled on http://www.davidhbailey.com/dhbpapers/mpfun2015.pdf.
IMO if real(8) is not enough for a given problem, this is really the way to go (there is no guarantee that real(16) will be enough). In my "real life", real(8) was not enough only once and real(16) was not enough too: I had to use precisions between 40 and 200 with Mathematica.
Dominique
next reply other threads:[~2017-09-18 9:38 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-18 9:38 Dominique d'Humières [this message]
-- strict thread matches above, loose matches on Subject: below --
2017-09-25 15:07 David Edelsohn
2017-09-25 21:14 ` Janus Weil
2017-09-25 21:23 ` Steve Kargl
2017-09-26 8:44 ` Janus Weil
2017-09-26 9:03 ` Janus Weil
2017-09-26 9:12 ` Rainer Orth
2017-09-26 9:47 ` Janus Weil
2017-09-26 14:54 ` David Edelsohn
2017-09-18 9:31 Dominique d'Humières
2017-09-18 18:13 ` Janus Weil
2017-09-22 10:06 ` Dominique d'Humières
2017-09-22 11:21 ` Janus Weil
2017-09-22 14:37 ` Steve Kargl
2017-09-22 22:46 ` Dominique d'Humières
2017-09-22 23:47 ` Steve Kargl
2017-12-03 17:36 ` Gerald Pfeifer
2017-09-17 20:42 Janus Weil
2017-09-18 4:51 ` Steve Kargl
2017-09-18 7:02 ` Janus Weil
2017-09-18 14:08 ` Steve Kargl
2017-09-18 17:57 ` Janus Weil
2017-09-21 7:10 ` Janus Weil
2017-09-21 20:38 ` Steve Kargl
2017-09-22 5:03 ` Janus Weil
2017-09-22 7:12 ` Janne Blomqvist
2017-09-22 9:44 ` Janus Weil
2017-09-22 19:32 ` Janus Weil
2017-09-23 13:19 ` Janus Weil
2017-09-22 14:06 ` Steve Kargl
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