> It may be that they never wrapped the preallocation methods. It seems > strange, but > possible. I guess I would mail Lisandro and see. > Just to clarify: I'm using the wrappers downloaded from ftp://ftp.mcs.anl.gov/pub/petsc/PETScPython.tar.gz. Are these something to do with petsc4py package by Lisandro? -- Marek Wojciechowski