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/petsc/src/snes/tutorials/
H A Dex73f90t.F90101 type(ex73f90tmodule_type), pointer:: solver
109 PetscCall(SNESGetApplicationContext(mysnes, solver, ierr))
110 … PetscCall(DMCompositeGetAccessArray(solver%da, Xnest, itwo, PETSC_NULL_INTEGER_ARRAY, Xsub, ierr))
112 PetscCall(InitialGuessLocal(solver, Xsub(1), ierr))
118 …PetscCall(DMCompositeRestoreAccessArray(solver%da, Xnest, itwo, PETSC_NULL_INTEGER_ARRAY, Xsub, ie…
137 subroutine InitialGuessLocal(solver, X1, ierr) argument
139 type(ex73f90tmodule_type) solver local
152 hx = one/(solver%mx - 1)
153 hy = one/(solver%my - 1)
154 temp1 = solver%lambda/(solver%lambda + one) + one
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/petsc/share/petsc/saws/js/
H A Ddefaults.js5 function getDefaults(solver,symm,posdef,logstruc,child_symm,child_posdef,child_logstruc) { argument
9 …if(solver == "") { //case 1: user did not override default solver. we simply return the default pc…
33 else if(solver == "mg") {
44 else if(solver == "gamg") {
55 else if(solver == "fieldsplit") {
66 else if(solver == "bjacobi") {
80 else if(solver == "asm") {
95 else if(solver == "redundant") {
109 else if(solver == "ksp") { //note: this is for pc_type = ksp
/petsc/src/ksp/pc/tutorials/
H A Dex1.c22 KSP solver; in main() local
75 PetscCall(KSPCreate(comm, &solver)); in main()
76 PetscCall(KSPSetOperators(solver, A, A)); in main()
78 PetscCall(KSPSetType(solver, KSPCG)); in main()
79 PetscCall(KSPSetInitialGuessNonzero(solver, PETSC_TRUE)); in main()
85 PetscCall(KSPGetPC(solver, &prec)); in main()
89 PetscCall(KSPSetFromOptions(solver)); in main()
90 PetscCall(KSPSetUp(solver)); in main()
106 PetscCall(KSPSolve(solver, B, X)); in main()
107 PetscCall(KSPGetConvergedReason(solver, &reason)); in main()
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/petsc/src/ksp/ksp/tests/
H A Dex61.c7 KSP solver; in main() local
63 PetscCall(KSPCreate(MPI_COMM_SELF, &solver)); in main()
64 PetscCall(KSPSetType(solver, KSPPREONLY)); in main()
65 PetscCall(KSPGetPC(solver, &pc)); in main()
67 PetscCall(KSPSetOperators(solver, A, A)); in main()
68 PetscCall(KSPSolve(solver, X, Y)); in main()
69 PetscCall(KSPSetOperators(solver, B, B)); in main()
70 PetscCall(KSPSolve(solver, X, Z)); in main()
85 PetscCall(KSPDestroy(&solver)); in main()
/petsc/src/snes/tutorials/network/
H A Dex1options1 # SNES (nonlinear solver) options
17 # KSP (linear solver) options
29 # SNES (nonlinear solver) options
45 # KSP (linear solver) options
54 # SNES (nonlinear solver) options
70 # KSP (linear solver) options
/petsc/share/petsc/saws/
H A Ddocumentation14 …nd Options, toggles the display of the generated command line options for the current solver setup.
16 The second option, Tree, toggles the display of the solver tree.
18 The tree diagram shows the structure of the solver. A horizontal split indicates multigrid levels. …
20 …solver and matrix properties can be made by clicking on a node and selecting the new matrix proper…
24 Towards the bottom of the page, we provide another way for the user to customize the solver: a hier…
26 …ks for the characteristics of the entire matrix and the root solver options. The root solver optio…
28 …vel in the solver (sub-solvers). Users should input matrix properties first to see what the sugges…
55 …solver options and matrix properties are stored using an object called "matInfo" since using a tre…
/petsc/src/snes/tutorials/output/
H A Dex12_p4est_full_q2_conformal_serial_plex.out18 Coarse grid solver -- level 0 -------------------------------
23 total number of linear solver iterations=5
45 Down solver (pre-smoother) on level 1 -------------------------------
50 total number of linear solver iterations=15
75 Up solver (post-smoother) same as down solver (pre-smoother)
76 Down solver (pre-smoother) on level 2 -------------------------------
81 total number of linear solver iterations=30
106 Up solver (post-smoother) same as down solver (pre-smoother)
109 total number of linear solver iterations=0
H A Dex12_p4est_full_q2_conformal_serial.out18 Coarse grid solver -- level 0 -------------------------------
23 total number of linear solver iterations=5
45 Down solver (pre-smoother) on level 1 -------------------------------
50 total number of linear solver iterations=15
75 Up solver (post-smoother) same as down solver (pre-smoother)
76 Down solver (pre-smoother) on level 2 -------------------------------
81 total number of linear solver iterations=30
106 Up solver (post-smoother) same as down solver (pre-smoother)
109 total number of linear solver iterations=0
H A Dex12_p4est_exact_q2_nonconformal_serial.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=1
47 Down solver (pre-smoother) on level 1 -------------------------------
52 total number of linear solver iterations=1
77 Up solver (post-smoother) same as down solver (pre-smoother)
78 Down solver (pre-smoother) on level 2 -------------------------------
83 total number of linear solver iterations=1
108 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_exact_q2_conformal_serial.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=1
47 Down solver (pre-smoother) on level 1 -------------------------------
52 total number of linear solver iterations=1
77 Up solver (post-smoother) same as down solver (pre-smoother)
78 Down solver (pre-smoother) on level 2 -------------------------------
83 total number of linear solver iterations=1
108 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_exact_q2_nonconformal_parallel_parmetis.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=1
47 Down solver (pre-smoother) on level 1 -------------------------------
52 total number of linear solver iterations=1
77 Up solver (post-smoother) same as down solver (pre-smoother)
78 Down solver (pre-smoother) on level 2 -------------------------------
83 total number of linear solver iterations=1
108 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_exact_q2_conformal_parallel_parmetis.out20 Coarse grid solver -- level 0 -------------------------------
25 total number of linear solver iterations=1
48 Down solver (pre-smoother) on level 1 -------------------------------
53 total number of linear solver iterations=1
76 Up solver (post-smoother) same as down solver (pre-smoother)
77 Down solver (pre-smoother) on level 2 -------------------------------
82 total number of linear solver iterations=1
105 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_full_q2_nonconformal_serial.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=34
48 Down solver (pre-smoother) on level 1 -------------------------------
53 total number of linear solver iterations=44
79 Up solver (post-smoother) same as down solver (pre-smoother)
80 Down solver (pre-smoother) on level 2 -------------------------------
85 total number of linear solver iterations=84
111 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_exact_q2_conformal_parallel.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=1
47 Down solver (pre-smoother) on level 1 -------------------------------
52 total number of linear solver iterations=1
77 Up solver (post-smoother) same as down solver (pre-smoother)
78 Down solver (pre-smoother) on level 2 -------------------------------
83 total number of linear solver iterations=1
108 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_full_q2_nonconformal_parallel.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=34
48 Down solver (pre-smoother) on level 1 -------------------------------
53 total number of linear solver iterations=44
79 Up solver (post-smoother) same as down solver (pre-smoother)
80 Down solver (pre-smoother) on level 2 -------------------------------
85 total number of linear solver iterations=84
111 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_exact_q2_nonconformal_parallel.out19 Coarse grid solver -- level 0 -------------------------------
24 total number of linear solver iterations=1
47 Down solver (pre-smoother) on level 1 -------------------------------
52 total number of linear solver iterations=1
77 Up solver (post-smoother) same as down solver (pre-smoother)
78 Down solver (pre-smoother) on level 2 -------------------------------
83 total number of linear solver iterations=1
108 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_solve_fas.out60 Coarse grid solver -- level 0 -------------------------------
65 total number of linear solver iterations=36
87 Down solver (pre-smoother) on level 1 -------------------------------
92 total number of linear solver iterations=235
117 Up solver (post-smoother) same as down solver (pre-smoother)
118 Down solver (pre-smoother) on level 2 -------------------------------
123 total number of linear solver iterations=413
148 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_p4est_fas_q2_conformal_serial.out28 Coarse grid solver -- level 0 -------------------------------
33 total number of linear solver iterations=12
59 Down solver (pre-smoother) on level 1 -------------------------------
64 total number of linear solver iterations=1
93 Up solver (post-smoother) same as down solver (pre-smoother)
94 Down solver (pre-smoother) on level 2 -------------------------------
99 total number of linear solver iterations=1
128 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex19_tut_8.out61 total number of linear solver iterations=50
85 Coarse grid solver -- level 0 -------------------------------
129 Down solver (pre-smoother) on level 1 -------------------------------
147 Up solver (post-smoother) same as down solver (pre-smoother)
148 Down solver (pre-smoother) on level 2 -------------------------------
166 Up solver (post-smoother) same as down solver (pre-smoother)
167 Down solver (pre-smoother) on level 3 -------------------------------
185 Up solver (post-smoother) same as down solver (pre-smoother)
186 Down solver (pre-smoother) on level 4 -------------------------------
203 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex19_tut_8_alt.out61 total number of linear solver iterations=50
85 Coarse grid solver -- level 0 -------------------------------
129 Down solver (pre-smoother) on level 1 -------------------------------
147 Up solver (post-smoother) same as down solver (pre-smoother)
148 Down solver (pre-smoother) on level 2 -------------------------------
166 Up solver (post-smoother) same as down solver (pre-smoother)
167 Down solver (pre-smoother) on level 3 -------------------------------
185 Up solver (post-smoother) same as down solver (pre-smoother)
186 Down solver (pre-smoother) on level 4 -------------------------------
203 Up solver (post-smoother) same as down solver (pre-smoother)
H A Dex12_mg_newton_coarse_0.out13 total number of linear solver iterations=3
35 Coarse grid solver -- level 0 -------------------------------
63 Down solver (pre-smoother) on level 1 -------------------------------
93 Up solver (post-smoother) same as down solver (pre-smoother)
94 Down solver (pre-smoother) on level 2 -------------------------------
124 Up solver (post-smoother) same as down solver (pre-smoother)
125 Down solver (pre-smoother) on level 3 -------------------------------
155 Up solver (post-smoother) same as down solver (pre-smoother)
/petsc/doc/tutorials/
H A Dhandson.md45 view the solver options used
57 - Run with a 1025x1025 grid using multigrid solver on 4
96 default solver options
141 - Changing the default linear solver
159 monitor the convergence of the nonlinear and linear solver and
160 examine the exact solver used
173 linear solver
186 solver
189 BoomerAMG) as the linear solver
202 solver but requires more linear solver iterations than
[all …]
/petsc/src/ksp/ksp/tutorials/output/
H A Dex56_latebs.out46 Using parallel coarse grid solver (all coarse grid equations not put on one process)
62 Coarse grid solver -- level 0 -------------------------------
80 Down solver (pre-smoother) on level 1 -------------------------------
109 Up solver (post-smoother) same as down solver (pre-smoother)
110 Down solver (pre-smoother) on level 2 -------------------------------
139 Up solver (post-smoother) same as down solver (pre-smoother)
140 Down solver (pre-smoother) on level 3 -------------------------------
158 Up solver (post-smoother) same as down solver (pre-smoother)
211 Using parallel coarse grid solver (all coarse grid equations not put on one process)
227 Coarse grid solver -- level 0 -------------------------------
[all …]
H A Dex66_1.out16 Coarse grid solver -- level 0 -------------------------------
35 Down solver (pre-smoother) on level 1 -------------------------------
66 Up solver (post-smoother) same as down solver (pre-smoother)
67 Down solver (pre-smoother) on level 2 -------------------------------
98 Up solver (post-smoother) same as down solver (pre-smoother)
99 Down solver (pre-smoother) on level 3 -------------------------------
130 Up solver (post-smoother) same as down solver (pre-smoother)
/petsc/src/binding/petsc4py/src/petsc4py/PETSc/
H A DRegressor.pyx2 """REGRESSOR solver type.
25 """Regression solver.
43 """View the solver.
62 """Create a REGRESSOR solver.
94 """Configure the solver from the options database.
105 """Set up the internal data structures for using the solver.
169 """Destroy internal data structures of the solver.
181 """Destroy the solver.
194 """Set the type of the solver.
201 The type of the solver.
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