KSPSetPC()在PETSc中用于设置KSP求解器的预处理算子。此函数接收两个参数：ksp对象和pc对象。ksp对象是已创建并配置求解线性方程组方法与参数的KSP对象。pc对象是预处理算子，需先通过PCCreate()创建，再用PCSetType()设置类型与参数。调用KSPSetPC()前，应先调用PCCreate()生成预处理算子，接着用P...
Cc: petsc-users@mcs.anl.gov<mailto:petsc-users@mcs.anl.gov> <petsc-users@mcs.anl.gov<mailto:petsc-users@mcs.anl.gov>> Subject: Re: [petsc-users] PCFactorSetMatOrderingType not working with 3.21 I have attached src/snes/tutorials/ex5. c in which I tried to reproduce your proble...
We have broadened thePreconditionerTypelist to include newer PETSc preconditioners likePCBDDC,PCGAMG,PCAMS,PCPYTHON, etc. Configuration Mappings Each new enumeration maps to PETSc strings (e.g.,"pipefcg","bddc") so that end-users can do--ksp-type=pipefcgor--pc-type=bddc, leveraging advan...
KSPGetPC(ksp, &pc); PCFactorSetMatOrderingType(pc, MATORDERINGRCM); // PCFactorSetLevels(pc, 5); SNESSetFromOptions(snes); After switching to PETSc 3.21, this no longer works, and can be confirmed from ‘-snes_view’ output: PC Object: 1 MPI process type: ilu out-of-place factori...
mingw-w64-petsc mingw-w64-phodav mingw-w64-phonon-qt5 mingw-w64-physfs mingw-w64-pidgin mingw-w64-pikchr mingw-w64-pinentry mingw-w64-pixman mingw-w64-pkg-config mingw-w64-pkgconf mingw-w64-plasma-framework-qt5 mingw-w64-plplot mingw-w64-png2ico mingw-w64-pngcru...
After switching to PETSc 3.21, this no longer works, and can be confirmed from ‘-snes_view’ output: PC Object: 1 MPI process type: ilu out-of-place factorization 0 levels of fill tolerance for zero pivot 2.22045e-14 using diagonal shift to prevent zero pivot [NONZERO] ...
>>> -redistribute_sub_pc_type lu # (source: command line) >>> #End of PETSc Option Table entries >>> There are no unused options. >>> >>> >>> -- >>> What most experimenters take for granted before they begin their >>> experiments is infinitely...
Package scripts for MinGW-w64 targets to build under MSYS2. - MINGW-packages/mingw-w64-libiconv/iconv.pc at 96d9ef8df1c8511d7bf2a1e5f509c779ed38ee03 · raphamorim/MINGW-packages
mingw-w64-petsc mingw-w64-phodav mingw-w64-phonon-qt5 mingw-w64-physfs mingw-w64-pidgin mingw-w64-pinentry mingw-w64-pixman mingw-w64-pkg-config mingw-w64-pkgconf mingw-w64-plasma-framework-qt5 mingw-w64-plplot mingw-w64-png2ico mingw-w64-pngcrush mingw-w64-pngnq ...
>> -redistribute_sub_pc_type lu # (source: command line) >> #End of PETSc Option Table entries >> *There are no unused options.* >> > > > -- > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which th...