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Belos: Add condition number estimation to GMRES #4645

Open mhoemmen opened 5 years ago

mhoemmen commented 5 years ago

@trilinos/belos

@drnoble requests that we add condition number estimation to GMRES.

Motivation and Context

@drnoble wants this feature for scaling studies. CG already has this feature (thanks to @csiefer2 :-) ). AztecOO's GMRES does too.

Possible Solution

It may be possible to do this with a custom StatusTest. The StatusTest would have access to the iteration object, which in turn has access to GMRES' upper Hessenberg matrix (actually matrices, since we're talking about Belos::PseudoBlockGmresIter).

github-actions[bot] commented 3 years ago

This issue has had no activity for 365 days and is marked for closure. It will be closed after an additional 30 days of inactivity. If you would like to keep this issue open please add a comment and/or remove the MARKED_FOR_CLOSURE label. If this issue should be kept open even with no activity beyond the time limits you can add the label DO_NOT_AUTOCLOSE. If it is ok for this issue to be closed, feel free to go ahead and close it. Please do not add any comments or change any labels or otherwise touch this issue unless your intention is to reset the inactivity counter for an additional year.

mhoemmen commented 3 years ago

revive

github-actions[bot] commented 2 years ago

This issue has had no activity for 365 days and is marked for closure. It will be closed after an additional 30 days of inactivity. If you would like to keep this issue open please add a comment and/or remove the MARKED_FOR_CLOSURE label. If this issue should be kept open even with no activity beyond the time limits you can add the label DO_NOT_AUTOCLOSE. If it is ok for this issue to be closed, feel free to go ahead and close it. Please do not add any comments or change any labels or otherwise touch this issue unless your intention is to reset the inactivity counter for an additional year.