gauge_tools.h

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#include <random_quda.h>
namespace quda {
  double3 plaquette(const GaugeField& U,
        QudaFieldLocation location);



  void gaugeGauss(GaugeField &dataDs, RNG &rngstate);
  
  void APEStep (GaugeField &dataDs,
    const GaugeField& dataOr,
    double alpha);

  void STOUTStep (GaugeField &dataDs,
      const GaugeField& dataOr,
      double rho);

  void OvrImpSTOUTStep (GaugeField &dataDs,
      const GaugeField& dataOr,
      double rho, double epsilon);


  void gaugefixingOVR( cudaGaugeField& data,
           const int gauge_dir,
                       const int Nsteps,
           const int verbose_interval,
           const double relax_boost,
                       const double tolerance,
           const int reunit_interval,
           const int stopWtheta);


  void gaugefixingFFT( cudaGaugeField& data, const int gauge_dir,
           const int Nsteps,
           const int verbose_interval,
           const double alpha,
           const int autotune,
                       const double tolerance,
           const int stopWtheta);
  void computeFmunu(GaugeField &Fmunu, 
        const GaugeField& gauge, 
        QudaFieldLocation location);

  double computeQCharge(GaugeField& Fmunu, QudaFieldLocation location);
}