hypre_app.yaml

# -*- mode: yaml -*-
#
# Sample input file for HYPRE mini-app
#

linear_system:
  type: matrix_market         # File type: [matrix_market, hypre_ij]
  matrix_file: mat.mm         # Matrix file, leave processor suffixes for hypre_ij
  rhs_file: rhs.mm            # RHS file
  sln_file: sln.mm            # Reference solution for comparison
  write_outputs: false        # Write out Matrix, RHS, Solution files from the run
  num_partitions: 2           # Number of partitions of IJ files (if MPI rank != num files)

solver_settings:
  method: gmres               # Solver: [gmres, boomeramg]
  preconditioner: boomeramg   # [boomeramg, none]
  tolerance: 1.0e-6           # tolerance for convergence check
  max_iterations: 100         # max iterations of the linear solver
  kspace: 10                  # Krylov vector space
  print_level: 4              # Verbosity of HYPRE messages
  reuse_preconditioner: false #

#
# Settings for BoomerAMG preconditioner
#
# See https://computation.llnl.gov/sites/default/files/public/hypre-2.11.2_ref_manual.pdf
#
# To use HYPRE_BoomerAMGSetCycleType, provide cycle_type parameter, to invoke
# HYPRE_BoomerAMGSetRelaxOrder use relax_order, and so on.
#
boomeramg_settings:
  print_level: 1
  max_iterations: 1
  tolerance: 0.0
  coarsen_type: 6
  cycle_type: 1
  relax_type: 6
  relax_order: 1
  num_sweeps: 2
  max_levels: 20
  interp_type: 0
  strong_threshold: 0.57