On Thu, Mar 1, 2012 at 17:39, Vaclav Hapla <vaclav.hapla at vsb.cz> wrote:
> OK, but: > 1. I don't understand what's the use case for MatCopy. > Copy to a complete matrix with same or different preallocation. > 2. I think it's not good that I can't do the thing without reallocations > though I have an apriori information where the new nonzeros will lie. > 3. Documentation of MatAssemblyBegin/End should definitely contain the > information about the zero filter. > There is no "zero filter". If you preallocate and set columns (inserting explicit zeros or whatever), they will not get filtered out. > > But OK, 2. is not a problem in my case :-) > Thank you, > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20120301/1dda3ff4/attachment.html>
