MatGetInfo() is the programmatic interface used to get this information. You can also run a proggram with -info and grep for malloc.
Barry > On Jul 11, 2024, at 1:55 PM, Michael Povolotskyi <mpovo...@gmail.com> wrote: > > This Message Is From an External Sender > This message came from outside your organization. > Hello, > > is there an option in PETSC that allows to check at run time if a sparse > matrix has been preallocated correctly? I remember there was something > like that is the older versions, but cannot find it now. > > The goal is to get rid of any possible time overhead due to dynamic > preallocation. > > Thank you, > > Michael. > >