source: issm/trunk/src/m/solvers/asmstokesoptions.m

Last change on this file was 26744, checked in by Mathieu Morlighem, 4 years ago

merged trunk-jpl and trunk for revision 26742
File size: 891 bytes
Line 
1function asm=asmstokesoptions(varargin)
2%ASMSTOKESOPTIONS - return Additive Schwartz Method Stokes PETSc options
3%
4% Usage:
5% options=asmstokesoptions;
6
7%retrieve options provided in varargin
8options=pairoptions(varargin{:});
9asm=struct();
10
11%default asm options
12asm.toolkit='petsc';
13asm.mat_type=getfieldvalue(options,'mat_type','mpiaij');
14asm.ksp_type=getfieldvalue(options,'ksp_type','gmres');
15asm.pc_type=getfieldvalue(options,'pc_type','asm');
16asm.sub_pc_type=getfieldvalue(options,'sub_pc_type','lu');
17asm.pc_asm_overlap=getfieldvalue(options,'pc_asm_overlap',1); % COMSOL's default
18asm.ksp_max_it=getfieldvalue(options,'ksp_max_it',100);
19asm.ksp_rtol=getfieldvalue(options,'ksp_rtol',1e-7); %tuned for best performance and to fit ISMIP-HOM-C 5km with MUMPS
20asm.ksp_atol=getfieldvalue(options,'ksp_atol',1e-10); %tuned for best performance and to fit ISMIP-HOM-C 5km with MUMPS
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