[tag] residual_update

This parameter switches on a residual replacement strategy to increase accuracy of residual at the expense of more Mat-vec products. Default value is false. This option is only available for the IDRS 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/

Additional info

From MathLib/LinAlg/Eigen/LinearSolverOptionsParser.cpp line 135

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

Used in the following test data files

Used in no end-to-end test cases.