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/petsc/src/mat/tests/
H A Dex66.c33 Vec v, x, y, Ax, Ay, Bx, By; in main() local
160 PetscCall(MatCreateVecs(B, &Bx, &By)); in main()
164 PetscCall(MatMult(B, Bx, By)); in main()
166 PetscCall(VecViewFromOptions(By, NULL, "-mult_vec_view")); in main()
168 PetscCall(VecAXPY(Ay, -1.0, By)); in main()
172 PetscCall(VecScale(By, -1.0)); in main()
173 PetscCall(MatMultAdd(B, Bx, By, By)); in main()
174 PetscCall(VecNorm(By, NORM_INFINITY, &err)); in main()
175 PetscCall(VecViewFromOptions(By, NULL, "-mult_vec_view")); in main()
215 PetscCall(VecCopy(Ay, By)); in main()
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H A Dex159.c84 Mat By[4]; in main() local
87 By[0] = B00; in main()
88 By[1] = B01; in main()
89 By[2] = B10; in main()
90 By[3] = B[8]; in main()
94 PetscCall(MatCreateNest(PETSC_COMM_WORLD, 2, isy, 2, isy, By, &A)); in main()
/petsc/src/mat/utils/
H A Dmultequal.c11 Vec Ax = NULL, Bx = NULL, s1 = NULL, s2 = NULL, Ay = NULL, By = NULL; in MatMultEqual_Private() local
46 PetscCall(VecDuplicate(s2, &By)); in MatMultEqual_Private()
57 PetscCall(VecCopy(Ay, By)); in MatMultEqual_Private()
59 Badd = By; in MatMultEqual_Private()
62 PetscCall(VecCopy(By, s2)); in MatMultEqual_Private()
110 PetscCall(VecDestroy(&By)); in MatMultEqual_Private()
/petsc/src/ksp/pc/impls/lmvm/
H A Dlmvmpc.c185 Vec xsub, ysub, Bx = x, By = y; in PCApply_LMVM() local
196 By = ctx->ywork; in PCApply_LMVM()
198 PetscCall(MatSolve(B, Bx, By)); in PCApply_LMVM()
/petsc/share/petsc/
H A DCMakeLists.txt11 # By default it gets both the compiler information and the library information from PETSc
/petsc/doc/manual/
H A Dregressor.md47 By "linear" we mean that the model $f(x, \theta)$ is linear in its coefficients $\theta$
152 By default, bound-constrained regularized Gauss-Newton `TAOBRGN` is used to solve the underlying op…
189 By default, this step is omitted; if the user wishes to compute the intercept,
H A Dabout_this_manual.md14 … enabling users to employ the abstraction level most appropriate for a particular problem. By using
H A Dksp.md136 By default, if a direct solver is used, the factorization is *not* done
208 or the options database command `-ksp_gmres_classicalgramschmidt`. By
247 By default, `KSP` assumes an initial guess of zero by zeroing the
286 By default, most KSP implementations use left preconditioning. Some more
526 By default, the Krylov solvers, `KSPSolve()`, run silently without displaying
816 preallocation of memory for anticipated fill during factorization. By
858 (`-pc_type` `eisenstat`). By using both left and right
916 Gauss-Seidel method is available. By default, the PETSc
1186 smoother type to chebyshev by default. By default, GAMG uses its eigen
1387 …by the coarse grid, in particular the approximate solution computed there. By default, we create t…
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H A Dother.md73 of an optional file that can contain additional options. By default this file is
414 By default on Linux systems the GNU debugger `gdb` is used, on macOS systems `lldb` is used
416 By default, the debugger will be started in a new
482 where `filename` is optional. By default the traces are printed to the
495 provides should try to clean up only before exiting. By default all
670 By default, PETSc drawing tools employ a private colormap, which
689 system and viewport. By default, the drawing coordinates are from
698 By default, graphics will be drawn in the entire window. To restrict the
H A Dsnes.md361 line search Newton method for solving systems of nonlinear equations. By
495 increments. By default, this is how the right-hand side vector is handled in the
516 which corresponds to the case of proportional loading discussed above. By default,
613 By evaluating the intersection of constraint surface and equilibrium line at each
864 By default the `SNES` solvers run silently without displaying
996 By default a constant relative convergence tolerance is used for solving
1410 instances to be combined additively or multiplicatively. By command
H A Dmat.md66 efficient for a certain application. By default, `MatCreate()` employs
92 the values that are to be inserted. By default the values are given in
128 By placing other code between these two calls, the user can perform
500 the “correct” process is generally expensive. By using the command
824 By default, if the user lets PETSc decide the number of components to be
1057 By default, if new entries are made in locations where no nonzeros
H A Dtao.md1769 iteration. By default, the number of BNCG iterations is set to zero and
2063 first-order TAO solver. By default, TAOALM uses a quasi-Newton-Krylov
2472 where $\Delta_k$ is the current trust-region radius. By default we
2753 `-tao_ssils_rho <rho>`, respectively. By default,
2763 `-tao_ssfls_rho <rho>` respectively. By default,
2920 By default the TAO solvers run silently without displaying information
2977 By using the command line option `-tao_ls_type`. Available line
3007 call to compute the initial search direction of a new `TaoSolve()`. By
3014 call. By default, the feature is disabled and the algorithm will reset
H A Dadvanced.md317 $y = B^{-1} x$ by solving the linear system $By = x$ with
H A Dprofiling.md437 By default, the profiling produces a single set of statistics for all
494 By default, all PETSc operations are logged. To enable or disable the
H A Dfortran.md9 By default PETSc uses the MPI Fortran module `mpi`. To use `mpi_f08` run `./configure` with `--with…
H A Dsection.md195 By default, when `PetscSectionSetUp()` is called, the data laid out in the associated array is assu…
H A Ddmplex.md271 point, and we set the flag to `useCone = PETSC_FALSE`. By contrast,
278 `useClosure = PETSC_TRUE`. By contrast, in most finite volume methods,
/petsc/src/ksp/ksp/utils/lmvm/tests/
H A Dex1.c82 Vec x, y, Bx, By; in IsHermitianTest() local
90 PetscCall(VecDuplicate(x, &By)); in IsHermitianTest()
95 PetscCall((inverse ? MatSolve : MatMult)(B, y, By)); in IsHermitianTest()
97 PetscCall(VecNorm(By, NORM_2, &By_norm)); in IsHermitianTest()
100 PetscCall(VecDot(x, By, &dot_a)); in IsHermitianTest()
106 PetscCall(VecDestroy(&By)); in IsHermitianTest()
/petsc/
H A DCONTRIBUTING19 By making a contribution to this project, I certify that:
/petsc/doc/developers/contributing/
H A Dindex.md15 By submitting code, the contributor gives irretrievable consent to the
/petsc/src/binding/petsc4py/conf/
H A Depydoc.cfg21 # in case of unexpected error. By default don't show tracebacks
/petsc/doc/tutorials/meshing/
H A Dguide_to_subsurface.md102 By turning on `PetscInfo`, we can see what decisions the refiner is making
/petsc/doc/install/
H A Dlicense.md48 > By making a contribution to this project, I certify that:
H A Dinstall.md277 - `--with-packages-build-dir=PATH`: By default, external packages will be unpacked and
509 By default, PETSc does an in-place installation, meaning the libraries are kept in the
/petsc/src/binding/petsc4py/docs/ipynb/
H A Ddmplex.ipynb210 …can be helpful if you would like to flag certain entities for some reason. By default, the DMPlex …

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