Minor follow-up to this topic:
I submitted test results to CDash with gcc6.3 on Ubuntu and extra release flags https://cdash.kyomu.43-1.org/viewTest.php?onlyfailed&buildid=4886 -march=native -O3 -funsafe-loop-optimizations -flto A few tests fail (some with binary output, some with roundoff errors), but nothing to be worried about, as far as i can tell. ps. The continuous tester "GNU-5.3.0-master-optimized" on CDash appears to be adding -march=native -pipe to all flags and -Ofast to release flags. Regards, Denis On Thursday, September 15, 2016 at 2:04:58 PM UTC+2, Denis Davydov wrote: > > Dear all, > > From the matrix-free tutorials 37 and 48, I see that the recommended flags > for VectorizedArrays<double> with GCC are > > -DCMAKE_CXX_FLAGS="-march=native" > > How about using -O3, -ffast-math, -funroll-loops ? Any other recommended > flags for GCC? > > Regards, > Denis. > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
