[petsc-users] MAT_NEW_NONZERO_LOCATION_ERR

[Zhang, Hong]

Thibaut:
Hi,

Just out of curiosity, I'm a bit confused by the parameter option
MAT_NEW_NONZERO_LOCATION_ERR.

It triggers an error if you try to insert/add a value in the non-zero
structure, regardless of the matrix preallocation status. In what case
would such an option be useful?

 It triggers an error if you try to insert/add a NEW value outside of your preallocated non-zero structure.
Hong

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