Sets the number of iterations after which a restart of the GMRES method is performed. Default value is 30. This option is only available for the GMRES solver which is part of the unsupported Eigen modules that are available through OGS_USE_EIGEN_UNSUPPORTED CMake option.

See following links for detail description:

"Detailed Description" in https://libeigen.gitlab.io/docs/unsupported/classEigen_1_1GMRES.html

Additional info

From MathLib/LinAlg/Eigen/LinearSolverOptionsParser.cpp line 79

This is an optional parameter.
Data type: int
Expanded tag path: linear_solvers.linear_solver.eigen.restart
Go to source code: → ogs/ogs/master

Used in the following test data files

[→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/square_1e2_GMRES.prj
[→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/square_1e2_GMRES_GML_output_xdmf-hdf5.prj