We solve equations in a high-aspect ratio domain and have both a 2- and 3-dimensional DA which need to be compatible. Due to the nature of the problem, the x-direction of the 3D DA must be local which means that options such as -da_processors_x don't work (they mean different things for each DA, thus forcing an incompatible state).
It is currently not possible to set an options prefix on a DA because the usual PETSc creation pattern isn't used. A hack that would fix my problem is to just add a prefix argument to DACreate, but the more elegant solution is a more significant refactoring to DACreate, DASetSizes, DASetOptionsPrefix, DASetFromOptions. Jed -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: not available URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20090221/a899bdaa/attachment.pgp>