• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    公众号
登陆 注册

C++ PetscOptionsHead函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中PetscOptionsHead函数的典型用法代码示例。如果您正苦于以下问题：C++ PetscOptionsHead函数的具体用法？C++ PetscOptionsHead怎么用？C++ PetscOptionsHead使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了PetscOptionsHead函数的20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，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: VecSetFromOptions_MPI

static PetscErrorCode VecSetFromOptions_MPI(PetscOptionItems *PetscOptionsObject,Vec X)
{
  PetscErrorCode ierr;
  PetscBool      flg = PETSC_FALSE,set;

  PetscFunctionBegin;
  ierr = PetscOptionsHead(PetscOptionsObject,"VecMPI Options");CHKERRQ(ierr);
  ierr = PetscOptionsBool("-vec_assembly_bts","Use BuildTwoSided version of assembly","",flg,&flg,&set);CHKERRQ(ierr);
  if (set) {
    X->ops->assemblybegin = flg ? VecAssemblyBegin_MPI_BTS : VecAssemblyBegin_MPI;
    X->ops->assemblyend   = flg ? VecAssemblyEnd_MPI_BTS   : VecAssemblyEnd_MPI;
  }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:masa-ito，项目名称:PETScToPoisson，代码行数:15，代码来源:pbvec.c


示例2: SNESSetFromOptions_LS

static PetscErrorCode SNESSetFromOptions_LS(SNES snes)
{
  PetscErrorCode ierr;
  SNESLineSearch linesearch;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("SNESLS options");CHKERRQ(ierr);
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  /* set the default line search type */
  if (!snes->linesearch) {
    ierr = SNESGetSNESLineSearch(snes, &linesearch);CHKERRQ(ierr);
    ierr = SNESLineSearchSetType(linesearch, SNESLINESEARCHBT);CHKERRQ(ierr);
  }
  PetscFunctionReturn(0);
}
开发者ID:Kun-Qu，项目名称:petsc，代码行数:15，代码来源:ls.c


示例3: KSPSetFromOptions_CG

PetscErrorCode KSPSetFromOptions_CG(PetscOptions *PetscOptionsObject,KSP ksp)
{
  PetscErrorCode ierr;
  KSP_CG         *cg = (KSP_CG*)ksp->data;

  PetscFunctionBegin;
  ierr = PetscOptionsHead(PetscOptionsObject,"KSP CG and CGNE options");CHKERRQ(ierr);
#if defined(PETSC_USE_COMPLEX)
  ierr = PetscOptionsEnum("-ksp_cg_type","Matrix is Hermitian or complex symmetric","KSPCGSetType",KSPCGTypes,(PetscEnum)cg->type,
                          (PetscEnum*)&cg->type,NULL);CHKERRQ(ierr);
#endif
  ierr = PetscOptionsBool("-ksp_cg_single_reduction","Merge inner products into single MPI_Allreduce()","KSPCGUseSingleReduction",cg->singlereduction,&cg->singlereduction,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:dingwentao，项目名称:FT-PCG，代码行数:15，代码来源:cg_cks2.c


示例4: SNESLineSearchSetFromOptions_BT

static PetscErrorCode SNESLineSearchSetFromOptions_BT(SNESLineSearch linesearch)
{

  PetscErrorCode    ierr;
  SNESLineSearch_BT *bt;

  PetscFunctionBegin;
  bt = (SNESLineSearch_BT*)linesearch->data;

  ierr = PetscOptionsHead("SNESLineSearch BT options");CHKERRQ(ierr);
  ierr = PetscOptionsReal("-snes_linesearch_alpha",   "Descent tolerance",        "SNESLineSearchBT", bt->alpha, &bt->alpha, NULL);CHKERRQ(ierr);

  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:prbrune，项目名称:petsc，代码行数:15，代码来源:linesearchbt.c


示例5: SVDSetFromOptions_TRLanczos

PetscErrorCode SVDSetFromOptions_TRLanczos(SVD svd)
{
  PetscErrorCode ierr;
  PetscBool      set,val;
  SVD_TRLANCZOS  *lanczos = (SVD_TRLANCZOS*)svd->data;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("SVD TRLanczos Options");CHKERRQ(ierr);
  ierr = PetscOptionsBool("-svd_trlanczos_oneside","Lanczos one-side reorthogonalization","SVDTRLanczosSetOneSide",lanczos->oneside,&val,&set);CHKERRQ(ierr);
  if (set) {
    ierr = SVDTRLanczosSetOneSide(svd,val);CHKERRQ(ierr);
  }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:OpenCMISS-Dependencies，项目名称:slepc，代码行数:15，代码来源:trlanczos.c


示例6: DMSetFromOptions_Complex

PetscErrorCode  DMSetFromOptions_Complex(DM dm)
{
  DM_Complex    *mesh = (DM_Complex *) dm->data;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  PetscValidHeaderSpecific(dm, DM_CLASSID, 1);
  ierr = PetscOptionsHead("DMComplex Options");CHKERRQ(ierr);
    /* Handle DMComplex refinement */
    /* Handle associated vectors */
    /* Handle viewing */
    ierr = PetscOptionsBool("-dm_complex_print_set_values", "Output all set values info", "DMView", PETSC_FALSE, &mesh->printSetValues, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:Kun-Qu，项目名称:petsc，代码行数:15，代码来源:complexcreate.c


示例7: KSPCGSetFromOptions_NASH

static PetscErrorCode KSPCGSetFromOptions_NASH(PetscOptionItems *PetscOptionsObject,KSP ksp)
{
  PetscErrorCode ierr;
  KSPCG_NASH     *cg = (KSPCG_NASH*)ksp->data;

  PetscFunctionBegin;
  ierr = PetscOptionsHead(PetscOptionsObject,"KSPCG NASH options");CHKERRQ(ierr);

  ierr = PetscOptionsReal("-ksp_cg_radius", "Trust Region Radius", "KSPCGSetRadius", cg->radius, &cg->radius, NULL);CHKERRQ(ierr);

  ierr = PetscOptionsEList("-ksp_cg_dtype", "Norm used for direction", "", DType_Table, NASH_DIRECTION_TYPES, DType_Table[cg->dtype], &cg->dtype, NULL);CHKERRQ(ierr);

  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:petsc，项目名称:petsc，代码行数:15，代码来源:nash.c


示例8: KSPSetFromOptions_FGMRES

PetscErrorCode KSPSetFromOptions_FGMRES(KSP ksp)
{
  PetscErrorCode ierr;
  PetscBool      flg;

  PetscFunctionBegin;
  ierr = KSPSetFromOptions_GMRES(ksp);CHKERRQ(ierr);
  ierr = PetscOptionsHead("KSP flexible GMRES Options");CHKERRQ(ierr);
    ierr = PetscOptionsBoolGroupBegin("-ksp_fgmres_modifypcnochange","do not vary the preconditioner","KSPFGMRESSetModifyPC",&flg);CHKERRQ(ierr);
    if (flg) {ierr = KSPFGMRESSetModifyPC(ksp,KSPFGMRESModifyPCNoChange,0,0);CHKERRQ(ierr);}
    ierr = PetscOptionsBoolGroupEnd("-ksp_fgmres_modifypcksp","vary the KSP based preconditioner","KSPFGMRESSetModifyPC",&flg);CHKERRQ(ierr);
    if (flg) {ierr = KSPFGMRESSetModifyPC(ksp,KSPFGMRESModifyPCKSP,0,0);CHKERRQ(ierr);}
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:erdc-cm，项目名称:petsc-dev，代码行数:15，代码来源:fgmres.c


示例9: TaoSetFromOptions_NM

PetscErrorCode TaoSetFromOptions_NM(Tao tao)
{
  TAO_NelderMead *nm = (TAO_NelderMead*)tao->data;
  PetscBool      flg;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("Nelder-Mead options");CHKERRQ(ierr);
  ierr = PetscOptionsReal("-tao_nm_lamda","initial step length","",nm->lamda,&nm->lamda,&flg); CHKERRQ(ierr);
  ierr = PetscOptionsReal("-tao_nm_mu","mu","",nm->mu_oc,&nm->mu_oc,&flg);CHKERRQ(ierr);
  nm->mu_ic = -nm->mu_oc;
  nm->mu_r = nm->mu_oc*2.0;
  nm->mu_e = nm->mu_oc*4.0;
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:00liujj，项目名称:petsc，代码行数:16，代码来源:neldermead.c


示例10: PCSetFromOptions_Eisenstat

static PetscErrorCode PCSetFromOptions_Eisenstat(PC pc)
{
  PC_Eisenstat   *eis = (PC_Eisenstat*)pc->data;
  PetscErrorCode ierr;
  PetscBool      flg = PETSC_FALSE;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("Eisenstat SSOR options");CHKERRQ(ierr);
    ierr = PetscOptionsReal("-pc_eisenstat_omega","Relaxation factor 0 < omega < 2","PCEisenstatSetOmega",eis->omega,&eis->omega,PETSC_NULL);CHKERRQ(ierr);
    ierr = PetscOptionsBool("-pc_eisenstat_no_diagonal_scaling","Do not use standard diagonal scaling","PCEisenstatNoDiagonalScaling",flg,&flg,PETSC_NULL);CHKERRQ(ierr);
    if (flg) {
      ierr = PCEisenstatNoDiagonalScaling(pc);CHKERRQ(ierr);
    }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:erdc-cm，项目名称:petsc-dev，代码行数:16，代码来源:eisen.c


示例11: TSSetFromOptions_Theta

static PetscErrorCode TSSetFromOptions_Theta(TS ts)
{
  TS_Theta       *th = (TS_Theta*)ts->data;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("Theta ODE solver options");CHKERRQ(ierr);
  {
    ierr = PetscOptionsReal("-ts_theta_theta","Location of stage (0<Theta<=1)","TSThetaSetTheta",th->Theta,&th->Theta,PETSC_NULL);CHKERRQ(ierr);
    ierr = PetscOptionsBool("-ts_theta_extrapolate","Extrapolate stage solution from previous solution (sometimes unstable)","TSThetaSetExtrapolate",th->extrapolate,&th->extrapolate,PETSC_NULL);CHKERRQ(ierr);
    ierr = PetscOptionsBool("-ts_theta_endpoint","Use the endpoint instead of midpoint form of the Theta method","TSThetaSetEndpoint",th->endpoint,&th->endpoint,PETSC_NULL);CHKERRQ(ierr);
    ierr = SNESSetFromOptions(ts->snes);CHKERRQ(ierr);
  }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:Kun-Qu，项目名称:petsc，代码行数:16，代码来源:theta.c


示例12: KSPSetFromOptions_LGMRES

PetscErrorCode KSPSetFromOptions_LGMRES(PetscOptions *PetscOptionsObject,KSP ksp)
{
  PetscErrorCode ierr;
  PetscInt       aug;
  KSP_LGMRES     *lgmres = (KSP_LGMRES*) ksp->data;
  PetscBool      flg     = PETSC_FALSE;

  PetscFunctionBegin;
  ierr = KSPSetFromOptions_GMRES(PetscOptionsObject,ksp);CHKERRQ(ierr);
  ierr = PetscOptionsHead(PetscOptionsObject,"KSP LGMRES Options");CHKERRQ(ierr);
  ierr = PetscOptionsBool("-ksp_lgmres_constant","Use constant approx. space size","KSPGMRESSetConstant",lgmres->approx_constant,&lgmres->approx_constant,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-ksp_lgmres_augment","Number of error approximations to augment the Krylov space with","KSPLGMRESSetAugDim",lgmres->aug_dim,&aug,&flg);CHKERRQ(ierr);
  if (flg) { ierr = KSPLGMRESSetAugDim(ksp,aug);CHKERRQ(ierr); }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:pombredanne，项目名称:petsc，代码行数:16，代码来源:lgmres.c


示例13: KSPSetFromOptions_STCG

EXTERN_C_END

#undef __FUNCT__
#define __FUNCT__ "KSPSetFromOptions_STCG"
PetscErrorCode KSPSetFromOptions_STCG(KSP ksp)
{
  PetscErrorCode ierr;
  KSP_STCG       *cg = (KSP_STCG *)ksp->data;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("KSP STCG options");CHKERRQ(ierr);
  ierr = PetscOptionsReal("-ksp_stcg_radius", "Trust Region Radius", "KSPSTCGSetRadius", cg->radius, &cg->radius, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEList("-ksp_stcg_dtype", "Norm used for direction", "", DType_Table, STCG_DIRECTION_TYPES, DType_Table[cg->dtype], &cg->dtype, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:erdc-cm，项目名称:petsc-dev，代码行数:16，代码来源:stcg.c


示例14: KSPSetFromOptions_Richardson

PetscErrorCode KSPSetFromOptions_Richardson(KSP ksp)
{
  KSP_Richardson *rich = (KSP_Richardson*)ksp->data;
  PetscErrorCode ierr;
  PetscReal      tmp;
  PetscBool      flg,flg2;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("KSP Richardson Options");CHKERRQ(ierr);
  ierr = PetscOptionsReal("-ksp_richardson_scale","damping factor","KSPRichardsonSetScale",rich->scale,&tmp,&flg);CHKERRQ(ierr);
  if (flg) { ierr = KSPRichardsonSetScale(ksp,tmp);CHKERRQ(ierr); }
  ierr = PetscOptionsBool("-ksp_richardson_self_scale","dynamically determine optimal damping factor","KSPRichardsonSetSelfScale",rich->selfscale,&flg2,&flg);CHKERRQ(ierr);
  if (flg) { ierr = KSPRichardsonSetSelfScale(ksp,flg2);CHKERRQ(ierr); }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:OpenCMISS-Dependencies，项目名称:petsc，代码行数:16，代码来源:rich.c


示例15: TaoSetFromOptions_Test

static PetscErrorCode TaoSetFromOptions_Test(PetscOptions *PetscOptionsObject,Tao tao)
{
  Tao_Test        *fd = (Tao_Test *)tao->data;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscOptionsHead(PetscOptionsObject,"Hand-coded Hessian tester options");CHKERRQ(ierr);
  ierr = PetscOptionsBool("-tao_test_display","Display difference between hand-coded and finite difference Hessians","None",fd->complete_print,&fd->complete_print,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-tao_test_gradient","Test Hand-coded gradient against finite-difference gradient","None",fd->check_gradient,&fd->check_gradient,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-tao_test_hessian","Test Hand-coded hessian against finite-difference hessian","None",fd->check_hessian,&fd->check_hessian,NULL);CHKERRQ(ierr);
  if (fd->check_gradient == PETSC_FALSE && fd->check_hessian == PETSC_FALSE) {
    fd->check_gradient = PETSC_TRUE;
  }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:fengyuqi，项目名称:petsc，代码行数:16，代码来源:fdtest.c


示例16: KSPSetFromOptions_BSSCR

PetscErrorCode KSPSetFromOptions_BSSCR(PetscOptions *PetscOptionsObject, KSP ksp)
{

    PetscTruth  flg;
    KSP_BSSCR  *bsscr = (KSP_BSSCR *)ksp->data;
    PetscErrorCode ierr;
    PetscFunctionBegin;
    ierr = PetscOptionsHead(PetscOptionsObject,"KSP BSSCR options");CHKERRQ(ierr);
    /* if this ksp has a prefix "XXX_" it will be automatically added to the options. e.g. -ksp_test -> -XXX_ksp_test */
    /* ierr = PetscOptionsTruth("-ksp_test","Test KSP flag","nil",PETSC_FALSE,&test,PETSC_NULL);CHKERRQ(ierr); */
    /* if(test){ PetscPrintf( PETSC_COMM_WORLD,  "\n\n-----  test flag set  ------\n\n"); } */
    ierr = PetscOptionsEnum("-ksp_k2_type","Augmented Lagrangian matrix type","",K2Types, bsscr->k2type,(PetscEnum*)&bsscr->k2type,&flg);CHKERRQ(ierr);
    //if(flg){  PetscPrintf( PETSC_COMM_WORLD,  "-----  k2 type is  ------\n"); }
    ierr = PetscOptionsTail();CHKERRQ(ierr);
    PetscFunctionReturn(0);
}
开发者ID:underworldcode，项目名称:underworld2，代码行数:16，代码来源:BSSCR.c


示例17: PCSetFromOptions_Jacobi

static PetscErrorCode PCSetFromOptions_Jacobi(PC pc)
{
  PC_Jacobi      *jac = (PC_Jacobi*)pc->data;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscOptionsHead("Jacobi options");CHKERRQ(ierr);
  ierr = PetscOptionsBool("-pc_jacobi_rowmax","Use row maximums for diagonal","PCJacobiSetUseRowMax",jac->userowmax,
                          &jac->userowmax,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-pc_jacobi_rowsum","Use row sums for diagonal","PCJacobiSetUseRowSum",jac->userowsum,
                          &jac->userowsum,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-pc_jacobi_abs","Use absolute values of diagaonal entries","PCJacobiSetUseAbs",jac->useabs,
                          &jac->useabs,NULL);CHKERRQ(ierr);
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:PeiLiu90，项目名称:petsc，代码行数:16，代码来源:jacobi.c


示例18: PCSetFromOptions_SPAI

static PetscErrorCode PCSetFromOptions_SPAI(PetscOptionItems *PetscOptionsObject,PC pc)
{
  PC_SPAI        *ispai = (PC_SPAI*)pc->data;
  PetscErrorCode ierr;
  int            nbsteps1,max1,maxnew1,block_size1,cache_size,verbose,sp;
  double         epsilon1;
  PetscBool      flg;

  PetscFunctionBegin;
  ierr = PetscOptionsHead(PetscOptionsObject,"SPAI options");CHKERRQ(ierr);
  ierr = PetscOptionsReal("-pc_spai_epsilon","","PCSPAISetEpsilon",ispai->epsilon,&epsilon1,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetEpsilon(pc,epsilon1);CHKERRQ(ierr);
  }
  ierr = PetscOptionsInt("-pc_spai_nbsteps","","PCSPAISetNBSteps",ispai->nbsteps,&nbsteps1,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetNBSteps(pc,nbsteps1);CHKERRQ(ierr);
  }
  /* added 1/7/99 g.h. */
  ierr = PetscOptionsInt("-pc_spai_max","","PCSPAISetMax",ispai->max,&max1,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetMax(pc,max1);CHKERRQ(ierr);
  }
  ierr = PetscOptionsInt("-pc_spai_maxnew","","PCSPAISetMaxNew",ispai->maxnew,&maxnew1,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetMaxNew(pc,maxnew1);CHKERRQ(ierr);
  }
  ierr = PetscOptionsInt("-pc_spai_block_size","","PCSPAISetBlockSize",ispai->block_size,&block_size1,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetBlockSize(pc,block_size1);CHKERRQ(ierr);
  }
  ierr = PetscOptionsInt("-pc_spai_cache_size","","PCSPAISetCacheSize",ispai->cache_size,&cache_size,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetCacheSize(pc,cache_size);CHKERRQ(ierr);
  }
  ierr = PetscOptionsInt("-pc_spai_verbose","","PCSPAISetVerbose",ispai->verbose,&verbose,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetVerbose(pc,verbose);CHKERRQ(ierr);
  }
  ierr = PetscOptionsInt("-pc_spai_sp","","PCSPAISetSp",ispai->sp,&sp,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = PCSPAISetSp(pc,sp);CHKERRQ(ierr);
  }
  ierr = PetscOptionsTail();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:46，代码来源:ispai.c


示例19: KSPSetFromOptions_LCD

PetscErrorCode KSPSetFromOptions_LCD(PetscOptions *PetscOptionsObject,KSP ksp)
{
    PetscErrorCode ierr;
    PetscBool      flg;
    KSP_LCD        *lcd = (KSP_LCD*)ksp->data;

    PetscFunctionBegin;
    ierr = PetscOptionsHead(PetscOptionsObject,"KSP LCD options");
    CHKERRQ(ierr);
    ierr = PetscOptionsInt("-ksp_lcd_restart","Number of vectors conjugate","KSPLCDSetRestart",lcd->restart,&lcd->restart,&flg);
    CHKERRQ(ierr);
    if (flg && lcd->restart < 1) SETERRQ(PetscObjectComm((PetscObject)ksp),PETSC_ERR_ARG_OUTOFRANGE,"Restart must be positive");
    ierr = PetscOptionsReal("-ksp_lcd_haptol","Tolerance for exact convergence (happy ending)","KSPLCDSetHapTol",lcd->haptol,&lcd->haptol,&flg);
    CHKERRQ(ierr);
    if (flg && lcd->haptol < 0.0) SETERRQ(PetscObjectComm((PetscObject)ksp),PETSC_ERR_ARG_OUTOFRANGE,"Tolerance must be non-negative");
    PetscFunctionReturn(0);
}
开发者ID:pombredanne，项目名称:petsc，代码行数:17，代码来源:lcd.c


示例20: SNESSetFromOptions_NRichardson

static PetscErrorCode SNESSetFromOptions_NRichardson(PetscOptions *PetscOptionsObject,SNES snes)
{
    PetscErrorCode ierr;
    SNESLineSearch linesearch;

    PetscFunctionBegin;
    ierr = PetscOptionsHead(PetscOptionsObject,"SNES Richardson options");
    CHKERRQ(ierr);
    ierr = PetscOptionsTail();
    CHKERRQ(ierr);
    if (!snes->linesearch) {
        ierr = SNESGetLineSearch(snes, &linesearch);
        CHKERRQ(ierr);
        ierr = SNESLineSearchSetType(linesearch, SNESLINESEARCHL2);
        CHKERRQ(ierr);
    }
    PetscFunctionReturn(0);
}
开发者ID:pombredanne，项目名称:petsc，代码行数:18，代码来源:snesrichardson.c



注：本文中的PetscOptionsHead函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花
握手
雷人
路过
鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
More+
上一篇：
C++ PetscOptionsReal函数代码示例发布时间：2022-05-30
下一篇：
C++ PetscOptionsHasName函数代码示例发布时间：2022-05-30
热门推荐
More+
热门话题
More+
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服（服务时间 9:00～18:00）

在线QQ客服
地址：深圳市南山区西丽大学城创智工业园
电邮：jeky_zhao#qq.com
移动电话：139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap