[petsc-users] [KSP] solveTranspose fails with Strumpack and SuperLU_dist

Jean Marques jeanmarques.eng at gmail.com
Fri Apr 8 16:52:33 CDT 2022

Hi all,

This may be a naive question, and I hope this is the right place to ask
about it.
I need to solve a direct linear system with a sparse matrix R, then an
adjoint system the hermitian of R.

I use a petsc4py, so what I do is this:
to set up the PETSc KSP variable R, then I do:
self.R.solve(f, q)
and later:
self.R.solveTranspose(f, q)

However, 'solveTranspose()' only works when I use MUMPS. If I try STRUMPACK
or SUPERLU_DIST it fails, it seems that 'solveTranpose()' is not defined
for them? or is there a specific way to call them with these libraries?
Maybe the approach would be to define another 'self.R' variable but then
set it as a transpose().conjugate() before setUp()?
I was trying STRUMPACK because it has a low-memory approach and that's my
main bottleneck.

I appreciate any help you can provide.


*Jean Helder Marques Ribeiro*
Ph.D. Candidate
University of California, Los Angeles
420 Westwood Plaza, Los Angeles, CA 90095
phone: (310) 689-6593
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20220408/705ee6d2/attachment.html>

More information about the petsc-users mailing list