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Do not apply the preconditioner before starting the iterations as this might destroy a very good initial guess.

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(grafted from b49ef99617b11404007db283ce68f5dd5b2eff0e
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This commit is contained in:
Gael Guennebaud 2014-08-21 22:14:25 +02:00
parent 0321449944
commit c7331ebb06
1 changed files with 0 additions and 1 deletions
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Eigen/src/IterativeLinearSolvers/BiCGSTAB.h
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@ -39,7 +39,6 @@ bool bicgstab(const MatrixType& mat, const Rhs& rhs, Dest& x,
int maxIters = iters;
int n = mat.cols();
x = precond.solve(x);
VectorType r = rhs - mat * x;
VectorType r0 = r;