Changes: 3.10¶
General:
Removed –with-errorchecking configure option.
Added new command line option -viewfromoptions to disable
XXXViewFromOptions()calls.
Configure/Build:
Removed –with-viewfromoptions configure option in favor of the new command line option -viewfromoptions.
Following options are renamed to have more consistant names:
--with-packages-dir -> --with-packages-download-dir --with-external-packages-dir -> --with-packages-build-dir --package-dirs -> --with-packages-search-path --search-dirs -> --with-executables-search-path
IS:
PetscDraw:
PF:
Vec:
VecScatter:
PetscSection:
Mat:
MatNullSpaceTest() now respects the options prefix of the provided Mat.
Added MatMatTransposeSolve() to MUMPS interface.
Added -mat_mumps_use_omp_threads [m] option to better support OpenMP in MUMPS.
Added MatPartitioningViewFromOptions().
Added MatPartitioningApplyND() to compute a nested dissection ordering of a matrix.
Deprecated MatISGetMPIXAIJ() in favour of MatConvert().
Added new matrix types for limited-memory variable-metric (MATLMVM) approximations of Jacobians.
Added MATAIJSELL, a sub-type of AIJ that uses SELL format internally for SELL-optimized operations.
PC:
PCKSPGetKSP() now raises an error if called on a PC which is not of type PCKSP
Added PCKSPSetKSP()
Added new PC based on the new LMVM matrices.
KSP:
The KSP viewing options have changed. Now
-ksp_compute_eigenvalues becomes -ksp_view_eigenvalues ascii
-ksp_plot_eigenvalues becomes -ksp_view_eigenvalues draw
-ksp_plot_eigencontours becomes -ksp_view_eigenvalues draw::draw_contour
-ksp_compute_eigenvalues_explicitly becomes -ksp_view_eigenvalues_explicit ascii
-ksp_plot_eigenvalues_explicitly becomes -ksp_view_eigenvalues_explicit draw
-ksp_compute_singularvalues becomes -ksp_view_singularvalues ascii
-ksp_final_residual becomes -ksp_view_final_residual
-
Computes now an estimate of the operator’s norm in the same way as Saunders and MATLAB, and uses it in the type-specific stopping criterion
KSPLSQRConvergedDefault(); this now gives the same number of iterations as MATLAB’slsqr().Added
-ksp_lsqr_exact_mat_normandKSPLSQRSetExactMatNorm()to optionally compute and use the exact Frobenius norm instead of the estimate.KSPLSQRMonitorDefault()and-ksp_lsqr_monitornow additionally print the (estimate of) the operator’s norm.Allow setting
-ksp_convergence_test lsqr(it’s a default forKSPLSQR, though).KSPLSQRSetStandardErrorVec()is replaced byKSPLSQRSetComputeStandardErrorVec()which now specifies whether standard error vector should be computed instead of setting the vector;likewise, option
-ksp_lsqr_set_standard_erroris replaced by-ksp_lsqr_compute_standard_error.Renamed
KSPLSQRGetArnorm()toKSPLSQRGetNorms()and removed itsrhs_normargument.Renamed
KSPLSQRDefaultConverged()toKSPLSQRConvergedDefault()merged withKSPConvergedLSQR().
SNES:
SNESSetTolerances() and -snes_max_funcs now accept -1 to indicate unlimited number of function evaluations.
SNESLineSearch:
TAO:
Added bound-constrained Newton-Krylov methods (BNLS, BNTR, BNTL).
All quasi-Newton methods updated to use the new LMVM Mat objects.
Added a bound-constrained quasi-Newton line search (BQNLS) method that re-uses BNLS infrastructure to replace BLMVM on next release.
Bound-constrained conjugate gradient method expanded with new CG update types and nonlinear preconditioning.
Removed
-tao_type test.Gradient testing can now be accessed with the options
-tao_test_gradient,-tao_test_gradient_view, and Hessian testing can be done with-tao_test_hessian,-tao_test_hessian_view(also works for matrix-free Hessian).
TS:
Added symplectic time integrators for separable Hamiltonian systems (-ts_type basicsymplectic).
DM/DA:
Renamed
DMDAGetReducedDMDA()toDMDACreateCompatibleDMDA().Added DMGetCompatibility() and implementation for DMDA
DMPlex:
Added an interface DM and boundary label to DMPlexCreateHybridMesh()
More refined control of
DMView()whenPetscViewerType=PETSCVIEWERHDF5.PetscViewerFormatcan now be one of{PETSC_VIEWER_HDF5_VIZ, PETSC_VIEWER_HDF5_XDMF, PETSC_VIEWER_HDF5_PETSC, PETSC_VIEWER_DEFAULT}.Parallel mesh load (i.e. mesh distributed right from beginning) with
DMLoad(),PetscViewerType=PETSCVIEWERHDF5andPetscViewerFormat=PETSC_VIEWER_HDF5_XDMF, orDMPlexCreateFromFile()and-dm_plex_create_from_hdf5_xdmf.
PetscViewer:
Added argument to PetscViewerVTKAddField() to allow skipping of
DM check as fields are added
.. rubric:: SYS:
AO:
Sieve:
Fortran: