On Sun, Dec 9, 2018 at 1:42 PM parisse <bernard.pari...@ujf-grenoble.fr> wrote: > > Efficient code does not depend on how you handle it (git, svn or tarballs or > whatever).
Efficiency of handling code does depend upon this; fixing a trivial C++ issue in Giac takes 10 times longer (and takes 10 times more time and effort from the community around Giac) than in a similar system hosted, say, on github. > And I don't think different practices is the real reason why Giac was/is > mostly ignored here. When ODK proposal was being written, we still tried getting Giac to stop changing distribution tarballs without bumping up version numbers... > > After having done a few tests, I think I know why my code on Q is slower with > more threads (if the number of threads exceeds say 2 or 3), it is related to > the size of memory the various cores have to acces more than allocation > locks, this size is proportionnal to the number of threads if each thread > does a different modular computation, and this raises much more cache misses. > Which means I must parallelize in each modular computation instead of doing > different modulus in parallel. > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at https://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
