[petsc-users] -ksp_pc_side for -pc_fieldsplit_schur_fact_type upper

[Hoang Giang Bui]

Hello

I just want to make sure that I understand the right thing, in the manual
page of PCFieldSplitSetSchurFactType:
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCFieldSplitSetSchurFactType.html

The "upper" option uses DU from the full factorization. If I understand
correctly, the ksp must be used with right preconditioning, because A P^-1
= (LDU) * (DU)^(-1) = L. If that was the case, should the manual put this
information to be more clear?

Thanks
Giang
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