Set tolerance in Krylov solver

Linear Algebra
2

Considering the output of

from dolfin import *

solver = KrylovSolver('cg', 'none')

print(solver.parameters.keys())

I think you may want to try something like

solver.parameters['absolute_tolerance'] = 1e-5
solver.parameters['relative_tolerance'] = 1e-5

and see if it works.

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