On Friday, April 9, 2010, Alec Mihailovs <alec.mihail...@gmail.com> wrote: > On Apr 9, 1:53 pm, Leo Maloney <leo.b.malo...@gmail.com> wrote: >> I'm trying to compute the inverse of a 5000 x 5000 sparse matrix. I'm >> getting an EOF error after it runs for about 5 hours, and then it >> states that sage is trying to access unallocated memory. Is there a >> way I can increase the memory for this computation? Every time I >> Google it, all I can find is the benefits sage(plant) has on memory. > > As other people commented, that should be faster if the original > matrix was dense. > > In general, it is possible to write a procedure for inverting a > matrix, writing the answer on the disk incrementally, appending it to > a file - that may be slower, but removes the restriction on the RAM > size (but one would need to have enough space on the hard drive > instead) - I am not volunteering though.
A 5000x5000 matrix just isn't really that big, IMHO... > > Alec > > -- > To post to this group, send email to sage-support@googlegroups.com > To unsubscribe from this group, send email to > sage-support+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/sage-support > URL: http://www.sagemath.org > > To unsubscribe, reply using "remove me" as the subject. > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
