[petsc-users] meaning of KSP_MatMult

[Gaurish Telang]

Hi

What is the difference between KSP_MatMult and MatMult? I am trying to
implement a new KSP method and see that all Matrix vector multiplies are
done with
KSP_MatMult in cg.c which implements the conjugate gradient.

Regards,

Gaurish
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