本文整理汇总了C++中Split::setup方法的典型用法代码示例。如果您正苦于以下问题：C++ Split::setup方法的具体用法？C++ Split::setup怎么用？C++ Split::setup使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Split的用法示例。
在下文中一共展示了Split::setup方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: PetscOptionsSetValue
void
Split::setup(const std::string& prefix)
{
PetscErrorCode ierr;
std::string dmprefix = prefix + "dm_moose_", opt, val;
// var options
if (_vars.size()) {
opt = dmprefix + "vars";
val="";
for (unsigned int j = 0; j < _vars.size(); ++j)
val += (j ? "," : "") + _vars[j];
ierr = PetscOptionsSetValue(opt.c_str(), val.c_str());
CHKERRABORT(_communicator.get(), ierr);
}
// block options
if (_blocks.size()) {
opt = dmprefix + "blocks";
val = "";
for (unsigned int j = 0; j < _blocks.size(); ++j)
val += (j ? "," : "") + _blocks[j];
ierr = PetscOptionsSetValue(opt.c_str(), val.c_str());
CHKERRABORT(_communicator.get(), ierr);
}
// side options
if (_sides.size()) {
opt = dmprefix + "sides";
val = "";
for (unsigned int j = 0; j < _sides.size(); ++j)
val += (j ? "," : "") + _sides[j];
ierr = PetscOptionsSetValue(opt.c_str(), val.c_str());
CHKERRABORT(_communicator.get(), ierr);
}
// unside options
if (_unsides.size()) {
opt = dmprefix + "unsides";
val = "";
for (unsigned int j = 0; j < _unsides.size(); ++j)
val += (j ? "," : "") + _unsides[j];
ierr = PetscOptionsSetValue(opt.c_str(), val.c_str());
CHKERRABORT(_communicator.get(), ierr);
}
if (_splitting.size()) {
// If this split has subsplits, it is presumed that the pc_type used to solve this split's subsystem is fieldsplit
// with the following parameters (unless overridden by the user-specified petsc_options below).
opt = prefix + "pc_type";
val = "fieldsplit";
ierr = PetscOptionsSetValue(opt.c_str(), val.c_str());
CHKERRABORT(_communicator.get(), ierr);
// set Splitting Type
const char * petsc_splitting_type[] = {
"additive",
"multiplicative",
"symmetric_multiplicative",
"schur"
};
opt = prefix + "pc_fieldsplit_type";
ierr = PetscOptionsSetValue(opt.c_str(), petsc_splitting_type[_splitting_type]);
CHKERRABORT(_communicator.get(), ierr);
if (_splitting_type == SplittingTypeSchur)
{
// set Schur Type
const char * petsc_schur_type[] = {
"diag",
"upper",
"lower",
"full"
};
opt = prefix + "pc_fieldsplit_schur_fact_type";
ierr = PetscOptionsSetValue(opt.c_str(), petsc_schur_type[_splitting_type]);
CHKERRABORT(_communicator.get(), ierr);
// set Schur Preconditioner
const char * petsc_schur_pre[] = {
"self",
"selfp",
#if PETSC_VERSION_LESS_THAN(3,4,0)
"diag"
#else
"a11"
#endif
};
opt = prefix + "pc_fieldsplit_schur_precondition";
ierr = PetscOptionsSetValue(opt.c_str(), petsc_schur_pre[_schur_pre]);
CHKERRABORT(_communicator.get(), ierr);
// set Schur AInv
const char * petsc_schur_ainv[] = {
"diag",
"lump"
};
opt = prefix + "mat_schur_complement_ainv_type";
ierr = PetscOptionsSetValue(opt.c_str(), petsc_schur_ainv[_schur_ainv]);
CHKERRABORT(_communicator.get(), ierr);
//.........这里部分代码省略.........