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Re: [Question #149919]: PETScKrylovMatrix multiplicationin Python

 

Question #149919 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/149919

Christian Clason posted a new comment:
Johan,

thank you for the explanation. That means I should call the
PETScKrylovSolver with

y_petsc = PETScVector(V.dim()); y_petsc[:] = y.vector()[:]
x_petsc = PETScVector(V.dim())

NewtonSolver = PETScKrylovSolver('cg', 'none')
NewtonSolver.solve(H, x_petsc, y_petsc)

right? (I'm trying to get a correct minimal example for the bug report.)

Christian

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