sun_proj.h

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// -*- C++ -*-
/*! \file
 *  \ingroup gauge
 *  \author Subsetting added by A. Hart
 *  \param[in] w            complex Nc x Nc matrix
 *  \param[out] v           the projected SU(Nc) Matrix
 *  \param[in] BlkAccu      accuracy in SU(Nc) projection
 *  \param[in] BlkMax       max number of iterations in SU(Nc) projection
 *  \param[in] mstag        an (un)ordered subset of lattice sites
 *  \brief Project a complex Nc x Nc matrix W onto SU(Nc) by maximizing Tr(VW)
 *
 *  Project a complex Nc x Nc matrix W onto SU(Nc) by maximizing Tr(VW)
 */
 
#ifndef __sun_proj_h__
#define __sun_proj_h__
 
namespace Chroma 
{ 
 
  // No subsets 
  void sun_proj(const LatticeColorMatrix& w, 
                LatticeColorMatrix& v,
                const Real& BlkAccu, 
                int BlkMax);
 
  // Ordered subsets
  void sun_proj(const LatticeColorMatrix& w, 
                LatticeColorMatrix& v,
                const Real& BlkAccu, 
                int BlkMax,
                const Subset& mstag);
 
 
} // End namespace
#endif