[Trilinos-Users] amesos solver: MUMPS and SuperLU_Dist

Andrea Penza pepe.aero at alice.it
Thu Mar 15 10:03:21 MDT 2012


Dear developers,

I'm working with Sundance on system of Navier-Stokes equations. 
I reach convergence using NOX-AMESOS solver, calling it through this parameter list in a XML file.

<ParameterList>
  <ParameterList name="NOX Solver">
    <Parameter name="Nonlinear Solver" type="string" value="Line Search Based"/>
    <ParameterList name="Line Search">
      <Parameter name="Method" type="string" value="More'-Thuente"/>
    </ParameterList>
    <ParameterList name="Status Test">
      <Parameter name="Max Iterations" type="int" value="50"/>
      <Parameter name="Tolerance" type="double" value="1e-10"/>
    </ParameterList>
    <ParameterList name="Linear Solver">
      <Parameter name="Type" type="string" value="Amesos"/>
    </ParameterList>
  </ParameterList>
</ParameterList>

Amesos will solve the linear step of Newton method implemented in NOX-based solvers. I would like to test different parallel solver, such as MUMPS or SuperLU_Dist, and my question is: once installed, how should I modify my XML file to call one of non-default solvers of Amesos?
Thanks in advance for your support. 
Best regards

Andrea 






More information about the Trilinos-Users mailing list