classdefpetsc-3.4.2 2013-07-02Petsc < handle % % PETSc MATLAB Interface Help % % PetscInitialize({'-option1','value1','-option2'}); % PetscFinalize; % % Petsc.INSERT_VALUES, Petsc.ADD_VALUES --- Options for setting values into Vecs and Mats % Petsc.DECIDE,Petsc.DEFAULT,Petsc.DETERMINE --- Use instead of some integer arguments % % PetscOptionsView; % show current options % PetscOptionsSetValue('-optionname','value'); % PetscOptionsClearValue('-optionname'); % remove from the database % % PetscObjectsView; % show all current PETSc objects, like MATLAB who % A = PetscObjectsGetObject('name'); % return MATLAB pointer to PETSc object of given name % % PetscCHKERRQ(ierr); % check if an error code is non-zero and set MATLAB error % PETSC_COMM_SELF; % returns current MPI_COMM_SELF communicator, not needed by users % % Each of the following have their own help % PetscObject - Abstract base class of all PETSc classes % PetscIS - Index set class % PetscVec - Vector class % PetscMat - Matrix class % PetscPC - Preconditioner class, not ususally used directly % PetscKSP - Linear solver class % PetscSNES - Nonlinear solver class % PetscTS - ODE integrator class % PetscDM - Manages interface between mesh data and the solvers % % The script demo.m in bin/matlab/classes/examples/tutorials demonstrates several example % usages of PETSc from MATLAB % Notes: You can call PetscInitialize() multiple times so long as you call PetscFinalize() between each call % The interface currently works only for sequential (one processor) runs, for % a good hacker it should be relatively easy to make it parallel. % All PETSc MATLAB functions that end with Internal.m are used by PETSc and should not be called % directly by users. % properties (Constant) INSERT_VALUES=1; ADD_VALUES=2; DECIDE=-1; DETERMINE=-1; DEFAULT=-2; COPY_VALUES=0; FILE_MODE_READ=0; FILE_MODE_WRITE=1; FILE_MODE_APPEND=2; FILE_MODE_UPDATE=3; FILE_MODE_APPEND_UPDATE=4; end end