[petsc-users] Possible to turn off unused option warning in debug mode?

[Greg Kahanamoku-Meyer]

Hi,

The unused option warning (
https://petsc.org/release/docs/manualpages/Sys/PetscOptionsLeft.html) is
automatically turned on when running in debug mode. Is there a way to turn
it off (other than turning off all debugging)?

For a bit of background, I am using PETSc through petsc4py, and certain
options can only be turned on via command line options to petsc4py.init()
(the corresponding functions aren't exposed in the Python interface). But I
don't know precisely which flags I will need until later, so I just call
init() with all the command line flags I might need during execution of the
script. (An example is the option '-viewer_binary_skip_info', which is only
used if my script ends up saving things to disk. When init() is called I
don't know if saving will be necessary yet). When I am running in debug
mode, this leads to PETSc printing a warning every time I run my code that
some of the options were not used. It would be great if I could quiet that
warning.

Thanks in advance,
Greg KM
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