v1.04.118 PETSC03 - Validating the PETSc solver with a second level preconditioner

Summary:

This test case makes it possible to validate the operation of the algorithm GMRES_LMP of the solver PETSC. This algorithm consists in using the iterative solver GMRES with a first level preconditioner (here LDLT_SP) and a second level preconditioner, called Limited Memory Preconditioner. Refer to the reference documentation [R6.01.02] for more details on the second level preconditioner, as well as to the user documentation [U4.50.01].

The test is derived from the mumps02 test case described in the validation documentation [V1.04.112]). It includes two models, making it possible to verify the correct functioning of the solver on 1 and 2 processors respectively.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions
• 2. Solution
  • 2.1. Reference quantities and results
• 3. Modeling A
  • 3.1. Characteristics of modeling
• 4. B modeling
  • 4.1. Characteristics of modeling
• 5. Summary of results