- consistent with other modules

- support mixed-precision (SPDP) mode

stefano zampini authored 4 years ago and Mark OLESEN committed 4 years ago

- use KSP_NORM_NONE if using foam convergence criterion

- support monitoring OpenFOAM residual reduction irrespective of the
  convergence testing

- remove occurences of PETSC_NULL and nullptr in favor of NULL

stefano zampini authored 4 years ago and Mark OLESEN committed 4 years ago

- call SetUseInitialGuessNonzero before KSPSetFromOptions, so that
  users can still customize it.

- We no longer need a patched petsc version that compute the L1 residual
  for us.

- Use a monitor to report the initial residual from PETSc when using
  PETSc convergence testing.

- Cleanup source code from unused functions/variables

- Use PetscFunctionBeginUser/PetscFunctionReturn and PETSc error
  handling if called from PETSc

stefano zampini authored 4 years ago and Mark OLESEN committed 4 years ago

- the general MatSetUp call is a dummy call if we already preallocated
  with the above preallocators this is intended to allow for a
  different matrix type, only for the purpose of testing

stefano zampini authored 4 years ago and Mark OLESEN committed 4 years ago

- need VecResetArray otherwise the CPU array placed will never be updated

STYLE: make PetscWrappedVector constructor explicit, use default constructor

- compile into FOAM_USER_LIBBIN for consistency with other
  modules

- normally not defined, but can be used to define an alternative
  installation location. More refinements in the future, pending
  changes in OpenFOAM.

ENH: added prefix to ksp and mat options; added options subdict for setting directly petsc options in the db

- identical under the hood, but the former is more OpenFOAM-like