Le lundi 25 septembre 2017 18:56:26 UTC+2, Bill Hart a écrit : > > Do you use anything special for memory management? Mickael Gastineau > recommended jemalloc, which we haven't tried yet. I assume you expected to > see better times for the threaded benchmarks with giac? >
I'm not using anything specific for memory management. Thread-efficient memory management would certainly help improve performances, because more than half of the time is done in conversions inside giac, and conversions to mpz types are not parallelized because it would be slower to wait for locks. I was asking about the compiler because I looked at my code and saw that some optimizations are disabled for clang. Can you give some precisions about what you call delayed insertion in the heap? I can delay insertion of the initial product monomials f[i]*g[0] but that does not improve much the timings, at least with 1 thread. -- 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.
