> On 12 Apr 2024, at 11:10 AM, Carl-Johan Thore <carljohanth...@gmail.com> > wrote: > > Pierre, I see that you've already done a merge request for this. Thanks! > I have tested this and it works nicely in my application
I guess your matrix is symmetric in pattern? Because otherwise, I don’t think this should work. But if it’s OK for your use case, I could simply add a PetscCheck() that the input Mat is symmetric and then get this integrated (better to have something partially working than nothing at all, I guess). Please let me know. Thanks, Pierre > /Carl-Johan > > On Wed, Apr 10, 2024 at 8:24 AM Carl-Johan Thore <carljohanth...@gmail.com > <mailto:carljohanth...@gmail.com>> wrote: >> >> >> On Tue, Apr 9, 2024 at 5:31 PM Pierre Jolivet <pie...@joliv.et >> <mailto:pie...@joliv.et>> wrote: >>> >>>> On 9 Apr 2024, at 4:19 PM, Carl-Johan Thore <carljohanth...@gmail.com >>>> <mailto:carljohanth...@gmail.com>> wrote: >>>> >>>> This Message Is From an External Sender >>>> This message came from outside your organization. >>>> Thanks for the suggestion. I don't have a factored matrix (and can't >>>> really use direct linear solvers) so MatSolveTranspose doesn't seem to be >>>> an option. >>>> I should have mentioned that I've also tried KSPSolveTranspose but that >>>> doesn't work with pcredistribute >>> >>> I’m not a frequent PCREDISTRIBUTE user, but it looks like >>> https://urldefense.us/v3/__https://petsc.org/release/src/ksp/pc/impls/redistribute/redistribute.c.html*line332__;Iw!!G_uCfscf7eWS!dzQtfplyy0liDIzLvwZPEQ15gmxeoXxZBqfgkYyHOUdkUhP-wvoKWG58yEPisaaRzqydtExDOol1d4MSyysHYQ$ >>> could be copy/paste’d into PCApplyTranspose_Redistribute() by just >>> changing a MatMult() to MatMultTranspose() and KSPSolve() to >>> KSPSolveTranspose(). >>> Would you be willing to contribute (and test) this? >>> Then, KSPSolveTranspose() — which should be the function you call — will >>> work. >>> >>> Thanks, >>> Pierre >> >> Thanks, that sounds promising. Yes, I'll try to make a contribution >> /Carl-Johan
