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fix test for weighted BFBT preconditioner #6057

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Oct 13, 2024
Merged

fix test for weighted BFBT preconditioner #6057

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15 changes: 15 additions & 0 deletions tests/nsinker_bfbt.prm
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,22 @@ set Dimension = 3

include $ASPECT_SOURCE_DIR/benchmarks/nsinker/nsinker.prm

# Follow as closely as possible the parameters from Rudi et al. (2017)
subsection Solver parameters
subsection Stokes solver parameters
set Use full A block as preconditioner = true
set Number of cheap Stokes solver steps = 500
set Maximum number of expensive Stokes solver steps = 1000
set Linear solver tolerance = 1e-6
set GMRES solver restart length = 100
set Use weighted BFBT for Schur complement = true
set Krylov method for cheap solver steps = GMRES
end

subsection AMG parameters
set AMG aggregation threshold = 0.02
end
end
subsection Mesh refinement
set Initial adaptive refinement = 0
set Initial global refinement = 1
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2 changes: 1 addition & 1 deletion tests/nsinker_bfbt/screen-output
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Expand Up @@ -6,7 +6,7 @@ Number of degrees of freedom: 527 (375+27+125)

*** Timestep 0: t=0 seconds, dt=0 seconds
Rebuilding Stokes preconditioner...
Solving Stokes system (AMG)... 29+0 iterations.
Solving Stokes system (AMG-BFBT)... 31+0 iterations.

Postprocessing:
Writing graphical output: output-nsinker_bfbt/solution/solution-00000
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2 changes: 1 addition & 1 deletion tests/nsinker_bfbt/statistics
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Expand Up @@ -9,4 +9,4 @@
# 9: Velocity iterations in Stokes preconditioner
# 10: Schur complement iterations in Stokes preconditioner
# 11: Visualization file name
0 0.000000000000e+00 0.000000000000e+00 8 402 125 1 28 30 145 output-nsinker_bfbt/solution/solution-00000
0 0.000000000000e+00 0.000000000000e+00 8 402 125 1 30 32 631 output-nsinker_bfbt/solution/solution-00000