On 2016-02-23 16:57, Jeroen Demeyer wrote: > On 2016-02-23 15:50, Clemens Heuberger wrote: >> It is also impossible to compile Sage 6.5 nowadays > > I assume this was a build from git? That's indeed not supported. A real > build-from-source-tarball should still work.
yes, I tried to build from git. I found the tarball in the meantime and am currently compiling it. How long do we support old tarballs? > >> Bottom line: I cannot reproduce 11 month old results anymore. > > Personally, I think this is a flaw in the review process for Sage tickets. > Reviewers should check whether existing code might break with a patch, but > that's not always done. As an illustration, one of the problems I encountered: cheuberg@rk01-math:/local/sage$ sage-6.7/sage -c "if x != infinity: print 'yes'" yes cheuberg@rk01-math:/local/sage$ sage-6.8/sage -c "if x != infinity: print 'yes'" Relying on the old behaviour was probably a bug, but behaviour changed anyhow without a deprecation. I try to pinpoint the other examples and will then report those. > >> Of course, I could have opened a ticket and included my code into the >> src/sage/tests directory. But I cannot imagine that this approach would scale >> very well. I assume that there are many papers out there with a substantial >> amount of CPU time required for reproducability. > > What if you just add a simple case? Imagine your code computes f(n) for all n > up > to 10^6. Then you could use f(10) as test case. Essentially, we computed one generating function for one very specific problem, using concatenations of transducers to get it. We could have included the doctests and marking some of them as optional or long (do we have "very long"? we are regularly running ptestlong, and you don't want to include all of that stuff...), and the issue above would have been covered. But I am not yet sure about the others. -- 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.
