[petsc-users] How much memory does TS use (in terms of # of matrices)

[Jed Brown]

On Wed, May 16, 2012 at 7:08 AM, Andrew Spott <andrew.spott at gmail.com>wrote:

> Not until you pointed it out… :).  Though it probably should have been.
>  It was late.
>
> Though I'm not sure how to fix that… should I do a MatDestroy(A) at the
> beginning of that function every time?.
>
> Is *A a pointer to the last used matrix, should I just do the mat
> duplicate into A?
>

Do you really mean to only change A (the operator), but not B (the
preconditioning matrix)?

Why do you want to create a new matrix instead of reusing those?
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