Basic I modify the SparseMatrix and Vector type to Trilinoswrappered ones. So if step-4 doesn't support parallel then what I got is reasonable. 在2023年2月23日星期四 UTC+8 22:40:14<Wolfgang Bangerth> 写道：
> On 2/23/23 07:37, 'yy.wayne' via deal.II User Group wrote: > > ** > > > > I'm making a big mistake then. I thought step-4 and step-40's only > difference > > are parallel > > distributed triangulation and handing ghost dofs. > > I don't know what you're doing in your modification of step-4, so I really > can't tell. But step-4 itself has no notion that there are other > processors. > Unless you modified it extensively, every process will build and store the > entire matrix, and I assume that you are also only calling MUMPS and > SuperLUU > with that entire matrix. > > But of course I don't know -- I don't have the code you are running. > > Best > W> > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: bang...@colostate.edu > www: http://www.math.colostate.edu/~bangerth/ > > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/a697be8f-0652-47b0-8364-158340e9145bn%40googlegroups.com.
