Opened 5 years ago
Closed 4 years ago
#3879 closed defect (fixed)
Add check for a solution when calculating the minimum norm sol
Reported by: | Christian Andersson | Owned by: | Christian Andersson |
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Priority: | major | Milestone: | Future |
Component: | FMU/JMU runtime | Version: | trunk |
Keywords: | Cc: |
Description
Currently when a singular Jacobian is detected in our linear solver, a minimum norm solution is directly calculated. However, there is no check performed that actually checks if the calculated solution is a solution to the linear system or not. This needs to be added.
Attachments (2)
Change History (10)
Changed 5 years ago by
Attachment: | linear_solution_check.patch added |
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Changed 5 years ago by
Attachment: | linear_solution_check_v2.patch added |
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comment:1 Changed 5 years ago by
Milestone: | 1.15.x → 1.16.x |
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comment:2 Changed 4 years ago by
Milestone: | 1.16.x → 1.17.x |
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comment:3 Changed 4 years ago by
Milestone: | 1.17 → Future |
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comment:4 Changed 4 years ago by
comment:6 Changed 4 years ago by
comment:7 Changed 4 years ago by
r8518 Added logging of tolerance to no valid minimum norm solution error message.
comment:8 Changed 4 years ago by
Resolution: | → fixed |
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Status: | new → closed |
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r8512:
#3879 Added a check for a valid minimum norm solution in case of a singular Jacobian.
#4475 In case we have an entire row in the Jacobian equal to 0, use heuristic residual scaling instead of the maximum.