本文整理汇总了C++中StopWatch::Clear方法的典型用法代码示例。如果您正苦于以下问题：C++ StopWatch::Clear方法的具体用法？C++ StopWatch::Clear怎么用？C++ StopWatch::Clear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StopWatch的用法示例。
在下文中一共展示了StopWatch::Clear方法的2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: tic
void tic()
{
tic_toc.Clear();
tic_toc.Start();
}示例2: main
//.........这里部分代码省略.........
//
// Here we use Symmetric Gauss-Seidel to approximate the inverse of the
// pressure Schur Complement
SparseMatrix *MinvBt = Transpose(B);
Vector Md(M.Height());
M.GetDiag(Md);
for (int i = 0; i < Md.Size(); i++)
{
MinvBt->ScaleRow(i, 1./Md(i));
}
SparseMatrix *S = Mult(B, *MinvBt);
Solver *invM, *invS;
invM = new DSmoother(M);
#ifndef MFEM_USE_SUITESPARSE
invS = new GSSmoother(*S);
#else
invS = new UMFPackSolver(*S);
#endif
invM->iterative_mode = false;
invS->iterative_mode = false;
BlockDiagonalPreconditioner darcyPrec(block_offsets);
darcyPrec.SetDiagonalBlock(0, invM);
darcyPrec.SetDiagonalBlock(1, invS);
// 10. Solve the linear system with MINRES.
// Check the norm of the unpreconditioned residual.
int maxIter(1000);
double rtol(1.e-6);
double atol(1.e-10);
chrono.Clear();
chrono.Start();
MINRESSolver solver;
solver.SetAbsTol(atol);
solver.SetRelTol(rtol);
solver.SetMaxIter(maxIter);
solver.SetOperator(darcyMatrix);
solver.SetPreconditioner(darcyPrec);
solver.SetPrintLevel(1);
x = 0.0;
solver.Mult(rhs, x);
chrono.Stop();
if (solver.GetConverged())
std::cout << "MINRES converged in " << solver.GetNumIterations()
<< " iterations with a residual norm of " << solver.GetFinalNorm() << ".\n";
else
std::cout << "MINRES did not converge in " << solver.GetNumIterations()
<< " iterations. Residual norm is " << solver.GetFinalNorm() << ".\n";
std::cout << "MINRES solver took " << chrono.RealTime() << "s. \n";
// 11. Create the grid functions u and p. Compute the L2 error norms.
GridFunction u, p;
u.Update(R_space, x.GetBlock(0), 0);
p.Update(W_space, x.GetBlock(1), 0);
int order_quad = max(2, 2*order+1);
const IntegrationRule *irs[Geometry::NumGeom];
for (int i=0; i < Geometry::NumGeom; ++i)
{
irs[i] = &(IntRules.Get(i, order_quad));
}