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// ************************************************************************
//
// ShyLU: Hybrid preconditioner package
// Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
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// modification, are permitted provided that the following conditions are
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//
// 1. Redistributions of source code must retain the above copyright
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// 2. Redistributions in binary form must reproduce the above copyright
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// documentation and/or other materials provided with the distribution.
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//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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#ifndef SHYLU_CONFIG_H
#define SHYLU_CONFIG_H
typedef struct
{
int sym; // flag for symmetry
double Sdiagfactor; // % of diagonals added to Schur complement
int schurApproxMethod; // ==1 implies blockdiagonal + A22
// ==2 implies dropping based
// ==4 implies IQR
double relative_threshold; // Relative threshold for dropping
// only used if schurApproxMethod == 2
int inner_maxiters; // maximum iterations for inner solver
double inner_tolerance; // relative residual tolerance for inner solver
std::string libName; // library for the outer solver
std::string schurSolver; // Solver for the Schur complement
std::string schurAmesosSolver; // Amesos solver for the Schur complement
std::string diagonalBlockSolver; // Solver to use to factorize the diagonal blocks
std::string schurPreconditioner; // Preconditioner for the inner iterations on Sbar (AztecOO-Exact)
bool silent_subiter;
int sep_type;
int debug_level;
//DebugManager dm;
int reset_iter; // When should we reset the guided_probing
int overlap;
bool amesosForDiagonal;
} shylu_config;
#endif // SHYLU_CONFIG_H
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