Petsc command to get the conditionning of matrices

[STEPHANE TCHOUANMO]

Dear all,

 

I solve a non-linear problem in Petsc using the classical Newton method. I give to Petsc the jacobian matrix and residuals at each Newton iteration.

Is there a way to get the conditionning of my Jacobian matrices? like a command when running my exectable (-ksp_.. or -snes_.. or -pc_..)

 

Thanks.

 

Stephane


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