[petsc-users] STFILTER in slepc

[Moritz Cygorek]

Hi,


in the list of changes to SLEPc version 3.8, it is stated that there is a preliminary implementation of polynomial filtering using STFILTER.


Because I am struggling to obtain interior eigenvalues and harmonic extraction seems not to be stable enough in my case, I wanted to give it a try, but I could not find any documentation yet.


Does anybody have an example of how to use STFILTER or any documentation about it?


Thanks in advance,

Moritz
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