[petsc-dev] How does PETSc define the overlap in an algebraic ASM preconditioner ?

markwinpe markwinpe at 163.com
Tue Apr 12 02:51:39 CDT 2022

Dear PETSc’s developers,
     Currently, I don’t have a geometric mesh for a PDE problem, I just got a matrix from others and I want to use the ASM preconditioner to solve the linear system. I would be appreciated if you could describe how PETSc defines the overlap in the context of using the algebraic ASM preconditioner.


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