Shri, quite a while back now, you removed a bunch of support for PETSC_VIEWER_NATIVE:
https://bitbucket.org/petsc/petsc/commits/742cafdd48f845c927348e65bdee73999c739268 and then added some of it back https://bitbucket.org/petsc/petsc/commits/f440316591b37bf1119cb52801fe97b42a9e8902 Since this commit, there is no way to view vectors in native format and only MPIDENSE matrices that can be viewed in native format. All other cases ignore the format, and in particular, DMDA vectors cannot be viewed in PETSc ordering. This is a big behavioral change that was not documented and makes debugging certain things a hell of a lot harder. We have had a number of flawed petsc-dev and petsc-maint threads in which we gave advice to use PETSC_VIEWER_NATIVE, but that advice would have been wrong since PETSC_VIEWER_NATIVE has done nothing for years now. What was the rationale behind this change? Note this thread from a week before the commits above, though PETSC_VIEWER_NATIVE was being used for a totally different purpose. http://mail-archive.com/search?l=mid&q=c57ddd9d-96de-474c-b471-d6a918ac5...@mcs.anl.gov
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