On 09/19/2010 08:45 PM, dmharvey wrote: > On Sep 19, 9:28 pm, dmharvey <dmhar...@cims.nyu.edu> wrote: >> Curiouser and curiouser.... it has nothing to do with matrices. Even >> doing this causes the problem: >> >> K = Integers(13^10) >> M = [[K.random_element() for j in range(200)] for k in range(200)] >> save(M, "thing.sobj") > > I have just discovered the following remarkable > > THEOREM: > > The code > > K = Integers(N) > M = [[K.random_element() for j in range(200)] for k in range(200)] > save(M, "thing.sobj") > > leads to the bug IF AND ONLY IF N >= 500. > > Moreover, it is about 50x faster to load the matrix if N < 500. > > WTF??????
Possibly very naive question: What happens to the times if you disable automatic garbage collection: import gc gc.disable() ? -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
