> On 13 Jan 2023, at 8:49 AM, Marius Buerkle <mbuer...@web.de> wrote: > > Hi, > > I have a matrix A for which I defined the number of local rows per process > manually using MatSetSizes. When I use MatConvert to change the matrix type > it changes the number of local rows (to what one would get if MatSetSize is > called with PETSC_DECIDE for number of local rows), which causes problems > when doing MatVec producs and stuff like that. Is there any way to preserve > the the number of local rows when using MatConvert?
This is most likely a bug, it’s not handled properly in some MatConvert() implementations. Could you please share either the matrix types or a minimal working example? Thanks, Pierre > > Best, > Marius
