Extending preconditioners to handle a diagonal operator for E-field #5716
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… will never be used
JustinRayAngus
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JustinRayAngus
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Mar 14, 2025
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Extended the
CurlCurlMLMGPCinterface to work with non-scalarbetacoefficient. It can now be aMultiFabarray (same size/layout as E-Fields) with one component representing a diagonal matrix/operator on the E-field.Implemented a
JacobiPCpreconditioner to solve the system\sigma E = busing the Jacobi iterations. For now,\sigmais a diagonal matrix (stored as aMultiFabarray (same size/layout as E-Fields) with one component. The solution is set asE = b / \sigma, so the iterations are not yet implemented. The complete Jacobi method will be implemented once non-diagonal elements of\sigmaare available.The preconditioners fetch a pointer to the matrix operator (
betaor\sigma) from the implicit time integrator object.