petsc-3.14.6 2021-03-30

KSPConvergedReasonView

Displays the reason a KSP solve converged or diverged to a viewer

#include "petscksp.h" 
#include "petscmat.h" 
PetscErrorCode KSPConvergedReasonView(KSP ksp, PetscViewer viewer)

Collective on ksp

	ksp	- iterative context obtained from KSPCreate()
	viewer	- the viewer to display the reason

	-ksp_converged_reason	- print reason for converged or diverged, also prints number of iterations
	-ksp_converged_reason ::failed	- only print reason and number of iterations when diverged

To change the format of the output call PetscViewerPushFormat(viewer,format) before this call. Use PETSC_VIEWER_DEFAULT for the default, use PETSC_VIEWER_FAILED to only display a reason if it fails.

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