[Trilinos-Users] [EXTERNAL] how to extract solution from Belos::LinearProblem ... updateSolution() does not work as expected

[Klinvex, Alicia Marie]

Hello Joachim,

The approximate solution should be stored in the vector LHS.

Best wishes,
Alicia

-----Original Message-----
From: Trilinos-Users [mailto:trilinos-users-bounces at trilinos.org] On Behalf Of Joachim Wuttke
Sent: Sunday, June 18, 2017 9:49 AM
To: trilinos-users at trilinos.org
Subject: [EXTERNAL] [Trilinos-Users] how to extract solution from Belos::LinearProblem ... updateSolution() does not work as expected

The code example in
   https://github.com/trilinos/Trilinos_tutorial/wiki/IfpackBelos2
tells me that Belos did converge,
but not what solution was found.

 From the Doxygen API documentation of Belos::LinearProblem I figured I could extract the solution by
   const Teuchos::RCP<MV> sln = problem->updateSolution(); However, this does not work as I expected:
sln is a null vector.

What did I understand wrong?