Efficient code does not depend on how you handle it (git, svn or tarballs 
or whatever). And I don't think different practices is the real reason why 
Giac was/is mostly ignored here.

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.

Reply via email to