Loading docs/source/InputsMultigrid.rst 0 → 100644 +76 −0 Original line number Diff line number Diff line .. _Chap:InputsMultigrid: Multigrid Inputs ================ The following inputs can be set directly in the AMReX solver classes but we set them via the MFiX-Exa routines because we may want different inputs for the differnt solvers called by MFiX-Exa. These control the nodal projection and must be preceded by "mfix": +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | | Description | Type | Default | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_verbose | Verbosity of multigrid solver in nodal projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_verbose | Verbosity of BiCGStab solver in nodal projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_rtol | Relative tolerance in nodal projection | Real | 1.e-11 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_atol | Absolute tolerance in nodal projection | Real | 1.e-14 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_maxiter | Maximum number of iterations in the nodal projection | Int | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_maxiter | Maximum number of iterations in the nodal projection | Int | | | | bottom solver if using bicg, cg, bicgcg or cgbicg | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_max_coarsening_level | Maximum number of coarser levels to allowin the nodal projection | Int | | | | If set to 0, the bottom solver will be called at the current level | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | bottom_solver_type | Which bottom solver to use in the nodal projection | String | bicgcg | | | Options are bicgstab, cg, cgbicg, smoother or hypre | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ These control the MAC projection and must be preceded by "mac": +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | | Description | Type | Default | +======================+=======================================================================+=============+=================+ | mg_verbose | Verbosity of multigrid solver in MAC projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_verbose | Verbosity of BiCGStab solver in MAC projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_rtol | Relative tolerance in MAC projection | Real | 1.e-11 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_atol | Absolute tolerance in MAC projection | Real | 1.e-14 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_maxiter | Maximum number of iterations in the MAC projection | Int | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_maxiter | Maximum number of iterations in the MAC projection | Int | | | | bottom solver if using bicg, cg, bicgcg or cgbicg | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_max_coarsening_level | Maximum number of coarser levels to allowin the nodal projection | Int | | | | If set to 0, the bottom solver will be called at the current level | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | bottom_solver_type | Which bottom solver to use in the MAC projection | String | bicgcg | | | Options are bicgstab, cg, cgbicg, smoother or hypre | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ These control the diffusion solver and must be preceded by "diff": The following inputs must be preceded by "diff" +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | | Description | Type | Default | +======================+=======================================================================+=============+==============+ | mg_verbose | Verbosity of linear solver for diffusion solve | Int | 0 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_verbose | Verbosity of BiCGStab solver in diffusion solve | Int | 0 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_rtol | Relative tolerance in diffusion solve | Real | 1.e-11 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_atol | Absolute tolerance in diffusion solve | Real | 1.e-14 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | bottom_solver_type | Which bottom solver to use in the diffusion solve | String | bicgcg | | | Options are bicgstab, cg, cgbicg, smoother or hypre | | | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ Loading
docs/source/InputsMultigrid.rst 0 → 100644 +76 −0 Original line number Diff line number Diff line .. _Chap:InputsMultigrid: Multigrid Inputs ================ The following inputs can be set directly in the AMReX solver classes but we set them via the MFiX-Exa routines because we may want different inputs for the differnt solvers called by MFiX-Exa. These control the nodal projection and must be preceded by "mfix": +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | | Description | Type | Default | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_verbose | Verbosity of multigrid solver in nodal projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_verbose | Verbosity of BiCGStab solver in nodal projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_rtol | Relative tolerance in nodal projection | Real | 1.e-11 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_atol | Absolute tolerance in nodal projection | Real | 1.e-14 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_maxiter | Maximum number of iterations in the nodal projection | Int | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_maxiter | Maximum number of iterations in the nodal projection | Int | | | | bottom solver if using bicg, cg, bicgcg or cgbicg | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_max_coarsening_level | Maximum number of coarser levels to allowin the nodal projection | Int | | | | If set to 0, the bottom solver will be called at the current level | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | bottom_solver_type | Which bottom solver to use in the nodal projection | String | bicgcg | | | Options are bicgstab, cg, cgbicg, smoother or hypre | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ These control the MAC projection and must be preceded by "mac": +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | | Description | Type | Default | +======================+=======================================================================+=============+=================+ | mg_verbose | Verbosity of multigrid solver in MAC projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_verbose | Verbosity of BiCGStab solver in MAC projection | Int | 0 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_rtol | Relative tolerance in MAC projection | Real | 1.e-11 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_atol | Absolute tolerance in MAC projection | Real | 1.e-14 | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_maxiter | Maximum number of iterations in the MAC projection | Int | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_maxiter | Maximum number of iterations in the MAC projection | Int | | | | bottom solver if using bicg, cg, bicgcg or cgbicg | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_max_coarsening_level | Maximum number of coarser levels to allowin the nodal projection | Int | | | | If set to 0, the bottom solver will be called at the current level | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ | bottom_solver_type | Which bottom solver to use in the MAC projection | String | bicgcg | | | Options are bicgstab, cg, cgbicg, smoother or hypre | | | +-------------------------+-----------------------------------------------------------------------+-------------+--------------+ These control the diffusion solver and must be preceded by "diff": The following inputs must be preceded by "diff" +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | | Description | Type | Default | +======================+=======================================================================+=============+==============+ | mg_verbose | Verbosity of linear solver for diffusion solve | Int | 0 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_cg_verbose | Verbosity of BiCGStab solver in diffusion solve | Int | 0 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_rtol | Relative tolerance in diffusion solve | Real | 1.e-11 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | mg_atol | Absolute tolerance in diffusion solve | Real | 1.e-14 | +----------------------+-----------------------------------------------------------------------+-------------+--------------+ | bottom_solver_type | Which bottom solver to use in the diffusion solve | String | bicgcg | | | Options are bicgstab, cg, cgbicg, smoother or hypre | | | +----------------------+-----------------------------------------------------------------------+-------------+--------------+
