diff --git a/benchmarks/Benchmark_dwf_sweep.cc b/benchmarks/Benchmark_dwf_sweep.cc
new file mode 100644
index 00000000..302059a4
--- /dev/null
+++ b/benchmarks/Benchmark_dwf_sweep.cc
@@ -0,0 +1,358 @@
+
+    /*************************************************************************************
+
+    Grid physics library, www.github.com/paboyle/Grid 
+
+    Source file: ./benchmarks/Benchmark_dwf.cc
+
+    Copyright (C) 2015
+
+Author: Peter Boyle <paboyle@ph.ed.ac.uk>
+Author: paboyle <paboyle@ph.ed.ac.uk>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+    See the full license in the file "LICENSE" in the top level distribution directory
+    *************************************************************************************/
+    /*  END LEGAL */
+#include <Grid.h>
+#include <PerfCount.h>
+
+using namespace std;
+using namespace Grid;
+using namespace Grid::QCD;
+
+template<class d>
+struct scal {
+  d internal;
+};
+
+  Gamma::GammaMatrix Gmu [] = {
+    Gamma::GammaX,
+    Gamma::GammaY,
+    Gamma::GammaZ,
+    Gamma::GammaT
+  };
+
+void benchDw(std::vector<int> & L, int Ls, int threads, int report =0 );
+void benchsDw(std::vector<int> & L, int Ls, int threads, int report=0 );
+
+int main (int argc, char ** argv)
+{
+  Grid_init(&argc,&argv);
+
+  const int Ls=16;
+  int threads = GridThread::GetThreads();
+  std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
+
+  if ( getenv("ASMOPT") )  {
+    QCD::WilsonKernelsStatic::AsmOpt=1;
+  } else { 
+    QCD::WilsonKernelsStatic::AsmOpt=0;
+  }
+
+  std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
+  std::cout<<GridLogMessage << "Volume \t\t\tProcs \t Dw \t eoDw \t sDw \t eosDw (Mflop/s)  "<<std::endl;
+  std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
+
+  int Lmax=32;
+  if ( getenv("LMAX") ) Lmax=atoi(getenv("LMAX"));
+  for (int L=8;L<Lmax;L*=2){
+    std::vector<int> latt4(4,L);
+    for(int d=4;d>0;d--){
+      if ( d<=3 ) latt4[d]*=2;
+      std::cout << GridLogMessage <<"\t";
+      for(int d=0;d<Nd;d++){
+	std::cout<<latt4[d]<<"x";
+      }
+      std::cout <<Ls<<"\t" ;
+      benchDw (latt4,Ls,threads,0);
+      benchsDw(latt4,Ls,threads,0);
+      std::cout<<std::endl;
+    }
+  }
+  std::cout<<GridLogMessage << "=========================================================================="<<std::endl;
+  {
+    std::vector<int> latt4(4,16);
+    std::cout<<GridLogMessage << "16^4 Dw miss rate"<<std::endl;
+    benchDw (latt4,Ls,threads,1);
+    std::cout<<GridLogMessage << "16^4 sDw miss rate"<<std::endl;
+    benchsDw(latt4,Ls,threads,1);
+  }
+
+  Grid_finalize();
+}
+
+#undef CHECK
+
+void benchDw(std::vector<int> & latt4, int Ls, int threads,int report )
+{
+  GridCartesian         * UGrid   = SpaceTimeGrid::makeFourDimGrid(latt4, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
+  GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
+  GridCartesian         * FGrid   = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
+  GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
+
+  std::vector<int> seeds4({1,2,3,4});
+  std::vector<int> seeds5({5,6,7,8});
+
+#ifdef CHECK 
+  GridParallelRNG          RNG4(UGrid);  RNG4.SeedFixedIntegers(seeds4);
+  GridParallelRNG          RNG5(FGrid);  RNG5.SeedFixedIntegers(seeds5);
+  LatticeFermion src   (FGrid); random(RNG5,src);
+  LatticeGaugeField Umu(UGrid); 
+  random(RNG4,Umu);
+#else 
+  LatticeFermion src   (FGrid); src=zero;
+  LatticeGaugeField Umu(UGrid); Umu=zero;
+#endif
+
+  LatticeFermion result(FGrid); result=zero;
+  LatticeFermion    ref(FGrid);    ref=zero;
+  LatticeFermion    tmp(FGrid);
+  LatticeFermion    err(FGrid);
+
+  ColourMatrix cm = Complex(1.0,0.0);
+
+
+  LatticeGaugeField Umu5d(FGrid); 
+
+  // replicate across fifth dimension
+  for(int ss=0;ss<Umu._grid->oSites();ss++){
+    for(int s=0;s<Ls;s++){
+      Umu5d._odata[Ls*ss+s] = Umu._odata[ss];
+    }
+  }
+
+  ////////////////////////////////////
+  // Naive wilson implementation
+  ////////////////////////////////////
+  std::vector<LatticeColourMatrix> U(4,FGrid);
+  for(int mu=0;mu<Nd;mu++){
+    U[mu] = PeekIndex<LorentzIndex>(Umu5d,mu);
+  }
+
+#ifdef CHECK
+  if (1)
+  {
+    ref = zero;
+    for(int mu=0;mu<Nd;mu++){
+
+      tmp = U[mu]*Cshift(src,mu+1,1);
+      ref=ref + tmp - Gamma(Gmu[mu])*tmp;
+
+      tmp =adj(U[mu])*src;
+      tmp =Cshift(tmp,mu+1,-1);
+      ref=ref + tmp + Gamma(Gmu[mu])*tmp;
+    }
+    ref = -0.5*ref;
+  }
+#endif
+
+  RealD mass=0.1;
+  RealD M5  =1.8;
+  RealD NP = UGrid->_Nprocessors;
+
+  DomainWallFermionR Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
+  
+  double t0=usecond();
+  Dw.Dhop(src,result,0);
+  double t1=usecond();
+
+  int ncall =1+(int) ((5.0*1000*1000)/(t1-t0));
+
+  if (ncall < 5 ) exit(0);
+
+  Dw.Dhop(src,result,0);
+
+  PerformanceCounter Counter(8);
+  Counter.Start();
+  t0=usecond();
+  for(int i=0;i<ncall;i++){
+    Dw.Dhop(src,result,0);
+  }
+  t1=usecond();
+  Counter.Stop();
+  if ( report ) {
+    Counter.Report();
+  }
+  
+  if ( ! report ) 
+    {
+      double volume=Ls;  for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
+      double flops=1344*volume*ncall;
+      std::cout <<"\t"<<NP<< "\t"<<flops/(t1-t0)<< "\t";
+    }
+  
+#ifdef CHECK
+    err = ref-result; 
+    RealD errd = norm2(err);
+    if ( errd> 1.0e-4 ) {
+      std::cout<<GridLogMessage << "oops !!! norm diff   "<< norm2(err)<<std::endl;
+      exit(-1);
+    }
+#endif
+    
+  LatticeFermion src_e (FrbGrid);
+  LatticeFermion src_o (FrbGrid);
+  LatticeFermion r_e   (FrbGrid);
+  LatticeFermion r_o   (FrbGrid);
+  LatticeFermion r_eo  (FGrid);
+  
+  pickCheckerboard(Even,src_e,src);
+  pickCheckerboard(Odd,src_o,src);
+  
+  {
+    Dw.DhopEO(src_o,r_e,DaggerNo);
+    double t0=usecond();
+    for(int i=0;i<ncall;i++){
+      Dw.DhopEO(src_o,r_e,DaggerNo);
+    }
+    double t1=usecond();
+    
+    if(!report){
+      double volume=Ls;  for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
+      double flops=(1344.0*volume*ncall)/2;
+      std::cout<< flops/(t1-t0);
+    }
+  }
+  
+}
+
+#undef CHECK_SDW
+void benchsDw(std::vector<int> & latt4, int Ls, int threads, int report )
+{
+
+  GridCartesian         * UGrid   = SpaceTimeGrid::makeFourDimGrid(latt4, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
+  GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
+  GridCartesian         * FGrid   = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
+  GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
+  GridCartesian         * sUGrid   = SpaceTimeGrid::makeFourDimDWFGrid(latt4,GridDefaultMpi());
+  GridCartesian         * sFGrid   = SpaceTimeGrid::makeFiveDimDWFGrid(Ls,UGrid);
+  GridRedBlackCartesian * sFrbGrid = SpaceTimeGrid::makeFiveDimDWFRedBlackGrid(Ls,UGrid);
+
+  std::vector<int> seeds4({1,2,3,4});
+  std::vector<int> seeds5({5,6,7,8});
+
+#ifdef CHECK_SDW
+  GridParallelRNG          RNG4(UGrid);  RNG4.SeedFixedIntegers(seeds4);
+  GridParallelRNG          RNG5(FGrid);  RNG5.SeedFixedIntegers(seeds5);
+  LatticeFermion src   (FGrid); random(RNG5,src);
+  LatticeGaugeField Umu(UGrid); 
+  random(RNG4,Umu);
+#else 
+  LatticeFermion src   (FGrid); src=zero;
+  LatticeGaugeField Umu(UGrid); Umu=zero;
+#endif
+
+  LatticeFermion result(FGrid); result=zero;
+  LatticeFermion    ref(FGrid);    ref=zero;
+  LatticeFermion    tmp(FGrid);
+  LatticeFermion    err(FGrid);
+
+  ColourMatrix cm = Complex(1.0,0.0);
+
+  LatticeGaugeField Umu5d(FGrid); 
+
+  // replicate across fifth dimension
+  for(int ss=0;ss<Umu._grid->oSites();ss++){
+    for(int s=0;s<Ls;s++){
+      Umu5d._odata[Ls*ss+s] = Umu._odata[ss];
+    }
+  }
+
+
+  RealD mass=0.1;
+  RealD M5  =1.8;
+
+    typedef WilsonFermion5D<DomainWallRedBlack5dImplF> WilsonFermion5DF;
+    LatticeFermionF ssrc(sFGrid);
+    LatticeFermionF sref(sFGrid);
+    LatticeFermionF sresult(sFGrid);
+    WilsonFermion5DF sDw(1,Umu,*sFGrid,*sFrbGrid,*sUGrid,M5);
+  
+    for(int x=0;x<latt4[0];x++){
+    for(int y=0;y<latt4[1];y++){
+    for(int z=0;z<latt4[2];z++){
+    for(int t=0;t<latt4[3];t++){
+    for(int s=0;s<Ls;s++){
+      std::vector<int> site({s,x,y,z,t});
+      SpinColourVectorF tmp;
+      peekSite(tmp,src,site);
+      pokeSite(tmp,ssrc,site);
+    }}}}}
+
+    double t0=usecond();
+    sDw.Dhop(ssrc,sresult,0);
+    double t1=usecond();
+
+    int ncall =1+(int) ((5.0*1000*1000)/(t1-t0));
+
+    PerformanceCounter Counter(8);
+    Counter.Start();
+    t0=usecond();
+    for(int i=0;i<ncall;i++){
+      sDw.Dhop(ssrc,sresult,0);
+    }
+    t1=usecond();
+    Counter.Stop();
+
+    if ( report ) {
+      Counter.Report();
+    } else { 
+
+      double volume=Ls;  for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
+      double flops=1344*volume*ncall;
+      std::cout<<"\t"<< flops/(t1-t0);
+    }
+
+
+    LatticeFermionF sr_eo(sFGrid);
+    LatticeFermionF serr(sFGrid);
+    
+    LatticeFermion ssrc_e (sFrbGrid);
+    LatticeFermion ssrc_o (sFrbGrid);
+    LatticeFermion sr_e   (sFrbGrid);
+    LatticeFermion sr_o   (sFrbGrid);
+      
+    pickCheckerboard(Even,ssrc_e,ssrc);
+    pickCheckerboard(Odd,ssrc_o,ssrc);
+
+    setCheckerboard(sr_eo,ssrc_o);
+    setCheckerboard(sr_eo,ssrc_e);
+    
+    sr_e = zero;
+    sr_o = zero;
+    
+    sDw.DhopEO(ssrc_o,sr_e,DaggerNo);
+    PerformanceCounter CounterSdw(8);
+    CounterSdw.Start();
+    t0=usecond();
+    for(int i=0;i<ncall;i++){
+      sDw.DhopEO(ssrc_o,sr_e,DaggerNo);
+    }
+    t1=usecond();
+    CounterSdw.Stop();
+
+    if ( report ) { 
+      CounterSdw.Report();
+    } else {
+
+      double volume=Ls;  for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
+      double flops=(1344.0*volume*ncall)/2;
+      std::cout<<"\t"<< flops/(t1-t0);
+    }
+}
+
+
diff --git a/lib/qcd/action/fermion/DomainWallFermion.h b/lib/qcd/action/fermion/DomainWallFermion.h
index b05733aa..8e41aa63 100644
--- a/lib/qcd/action/fermion/DomainWallFermion.h
+++ b/lib/qcd/action/fermion/DomainWallFermion.h
@@ -63,7 +63,7 @@ namespace Grid {
 	Approx::zolotarev_data *zdata = Approx::higham(eps,this->Ls);// eps is ignored for higham
 	assert(zdata->n==this->Ls);
 	
-	std::cout<<GridLogMessage << "DomainWallFermion with Ls="<<this->Ls<<std::endl;
+	//	std::cout<<GridLogMessage << "DomainWallFermion with Ls="<<this->Ls<<std::endl;
 	// Call base setter
 	this->SetCoefficientsTanh(zdata,1.0,0.0);
 
diff --git a/lib/qcd/action/fermion/WilsonFermion.cc b/lib/qcd/action/fermion/WilsonFermion.cc
index 2618286e..59632409 100644
--- a/lib/qcd/action/fermion/WilsonFermion.cc
+++ b/lib/qcd/action/fermion/WilsonFermion.cc
@@ -53,6 +53,8 @@ namespace QCD {
 	StencilEven(&Hgrid,npoint,Even,directions,displacements), // source is Even
 	StencilOdd (&Hgrid,npoint,Odd ,directions,displacements), // source is Odd
 	mass(_mass),
+	Lebesgue(_grid),
+	LebesgueEvenOdd(_cbgrid),
 	Umu(&Fgrid),
 	UmuEven(&Hgrid),
 	UmuOdd (&Hgrid) 
@@ -228,7 +230,7 @@ PARALLEL_FOR_LOOP
     
     out.checkerboard = in.checkerboard;
     
-    DhopInternal(Stencil,Umu,in,out,dag);
+    DhopInternal(Stencil,Lebesgue,Umu,in,out,dag);
   }
   
   template<class Impl>
@@ -239,7 +241,7 @@ PARALLEL_FOR_LOOP
     assert(in.checkerboard==Even);
     out.checkerboard = Odd;
     
-    DhopInternal(StencilEven,UmuOdd,in,out,dag);
+    DhopInternal(StencilEven,LebesgueEvenOdd,UmuOdd,in,out,dag);
   }
   
   template<class Impl>
@@ -250,7 +252,7 @@ PARALLEL_FOR_LOOP
     assert(in.checkerboard==Odd);
     out.checkerboard = Even;
     
-    DhopInternal(StencilOdd,UmuEven,in,out,dag);
+    DhopInternal(StencilOdd,LebesgueEvenOdd,UmuEven,in,out,dag);
   }
   
   template<class Impl>
@@ -285,7 +287,7 @@ PARALLEL_FOR_LOOP
   };
 
   template<class Impl>
-  void WilsonFermion<Impl>::DhopInternal(StencilImpl & st,DoubledGaugeField & U,
+  void WilsonFermion<Impl>::DhopInternal(StencilImpl & st,LebesgueOrder& lo,DoubledGaugeField & U,
 					 const FermionField &in, FermionField &out,int dag) 
   {
     assert((dag==DaggerNo) ||(dag==DaggerYes));
@@ -296,12 +298,12 @@ PARALLEL_FOR_LOOP
     if ( dag == DaggerYes ) {
 PARALLEL_FOR_LOOP
       for(int sss=0;sss<in._grid->oSites();sss++){
-	Kernels::DiracOptDhopSiteDag(st,U,st.comm_buf,sss,sss,1,1,in,out);
+	Kernels::DiracOptDhopSiteDag(st,lo,U,st.comm_buf,sss,sss,1,1,in,out);
       }
     } else {
 PARALLEL_FOR_LOOP
       for(int sss=0;sss<in._grid->oSites();sss++){
-	Kernels::DiracOptDhopSite(st,U,st.comm_buf,sss,sss,1,1,in,out);
+	Kernels::DiracOptDhopSite(st,lo,U,st.comm_buf,sss,sss,1,1,in,out);
       }
     }
   };
diff --git a/lib/qcd/action/fermion/WilsonFermion.h b/lib/qcd/action/fermion/WilsonFermion.h
index c1f4d682..3de2cac4 100644
--- a/lib/qcd/action/fermion/WilsonFermion.h
+++ b/lib/qcd/action/fermion/WilsonFermion.h
@@ -111,7 +111,7 @@ namespace Grid {
 			 const FermionField &B,
 			 int dag);
 
-      void DhopInternal(StencilImpl & st,DoubledGaugeField & U,
+      void DhopInternal(StencilImpl & st,LebesgueOrder & lo,DoubledGaugeField & U,
 			const FermionField &in, FermionField &out,int dag) ;
 
       // Constructor
@@ -146,6 +146,10 @@ namespace Grid {
       DoubledGaugeField Umu;
       DoubledGaugeField UmuEven;
       DoubledGaugeField UmuOdd;
+
+      LebesgueOrder Lebesgue;
+      LebesgueOrder LebesgueEvenOdd;
+
       
     };
 
diff --git a/lib/qcd/action/fermion/WilsonFermion5D.cc b/lib/qcd/action/fermion/WilsonFermion5D.cc
index 66047b72..08069bed 100644
--- a/lib/qcd/action/fermion/WilsonFermion5D.cc
+++ b/lib/qcd/action/fermion/WilsonFermion5D.cc
@@ -321,14 +321,14 @@ PARALLEL_FOR_LOOP
     for(int ss=0;ss<U._grid->oSites();ss++){
 	int sU=ss;
 	int sF=LLs*sU;
-	Kernels::DiracOptDhopSiteDag(st,U,st.comm_buf,sF,sU,LLs,1,in,out);
+	Kernels::DiracOptDhopSiteDag(st,lo,U,st.comm_buf,sF,sU,LLs,1,in,out);
     }
   } else {
 PARALLEL_FOR_LOOP
     for(int ss=0;ss<U._grid->oSites();ss++){
       int sU=ss;
       int sF=LLs*sU;
-      Kernels::DiracOptDhopSite(st,U,st.comm_buf,sF,sU,LLs,1,in,out);
+      Kernels::DiracOptDhopSite(st,lo,U,st.comm_buf,sF,sU,LLs,1,in,out);
     }
   }
 }
diff --git a/lib/qcd/action/fermion/WilsonKernels.cc b/lib/qcd/action/fermion/WilsonKernels.cc
index 63ba553d..672c23d6 100644
--- a/lib/qcd/action/fermion/WilsonKernels.cc
+++ b/lib/qcd/action/fermion/WilsonKernels.cc
@@ -38,20 +38,20 @@ template<class Impl>
 WilsonKernels<Impl>::WilsonKernels(const ImplParams &p): Base(p) {};
 
 template<class Impl> 
-void WilsonKernels<Impl>::DiracOptDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl>::DiracOptDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 						  std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 						  int sF,int sU,int Ls, int Ns, const FermionField &in, FermionField &out)
 {
   if ( AsmOpt ) {
 
-    WilsonKernels<Impl>::DiracOptAsmDhopSite(st,U,buf,sF,sU,Ls,Ns,in,out);
+    WilsonKernels<Impl>::DiracOptAsmDhopSite(st,lo,U,buf,sF,sU,Ls,Ns,in,out);
 
   } else {
 
     for(int site=0;site<Ns;site++) {
       for(int s=0;s<Ls;s++) {
-	if (HandOpt) WilsonKernels<Impl>::DiracOptHandDhopSite(st,U,buf,sF,sU,in,out);
-	else         WilsonKernels<Impl>::DiracOptGenericDhopSite(st,U,buf,sF,sU,in,out);
+	if (HandOpt) WilsonKernels<Impl>::DiracOptHandDhopSite(st,lo,U,buf,sF,sU,in,out);
+	else         WilsonKernels<Impl>::DiracOptGenericDhopSite(st,lo,U,buf,sF,sU,in,out);
 	sF++;
       }
       sU++;
@@ -61,17 +61,17 @@ void WilsonKernels<Impl>::DiracOptDhopSite(StencilImpl &st,DoubledGaugeField &U,
 }
 
 template<class Impl> 
-void WilsonKernels<Impl>::DiracOptDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl>::DiracOptDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 					   std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 					   int sF,int sU,int Ls, int Ns, const FermionField &in, FermionField &out)
 {
   // No asm implementation yet.
-  //  if ( AsmOpt )     WilsonKernels<Impl>::DiracOptAsmDhopSiteDag(st,U,buf,sF,sU,in,out);
+  //  if ( AsmOpt )     WilsonKernels<Impl>::DiracOptAsmDhopSiteDag(st,lo,U,buf,sF,sU,in,out);
   //  else
   for(int site=0;site<Ns;site++) {
     for(int s=0;s<Ls;s++) {
-      if (HandOpt) WilsonKernels<Impl>::DiracOptHandDhopSiteDag(st,U,buf,sF,sU,in,out);
-      else         WilsonKernels<Impl>::DiracOptGenericDhopSiteDag(st,U,buf,sF,sU,in,out);
+      if (HandOpt) WilsonKernels<Impl>::DiracOptHandDhopSiteDag(st,lo,U,buf,sF,sU,in,out);
+      else         WilsonKernels<Impl>::DiracOptGenericDhopSiteDag(st,lo,U,buf,sF,sU,in,out);
       sF++;
     }
     sU++;
@@ -84,7 +84,7 @@ void WilsonKernels<Impl>::DiracOptDhopSiteDag(StencilImpl &st,DoubledGaugeField
   ////////////////////////////////////////////
 
 template<class Impl> 
-void WilsonKernels<Impl>::DiracOptGenericDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl>::DiracOptGenericDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 					   std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 					   int sF,int sU,const FermionField &in, FermionField &out)
 {
@@ -262,7 +262,7 @@ void WilsonKernels<Impl>::DiracOptGenericDhopSiteDag(StencilImpl &st,DoubledGaug
 
   // Need controls to do interior, exterior, or both
 template<class Impl> 
-void WilsonKernels<Impl>::DiracOptGenericDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl>::DiracOptGenericDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 						  std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 						  int sF,int sU,const FermionField &in, FermionField &out)
 {
diff --git a/lib/qcd/action/fermion/WilsonKernels.h b/lib/qcd/action/fermion/WilsonKernels.h
index da6751dd..231fa293 100644
--- a/lib/qcd/action/fermion/WilsonKernels.h
+++ b/lib/qcd/action/fermion/WilsonKernels.h
@@ -53,11 +53,11 @@ namespace Grid {
      
     public:
 
-     void DiracOptDhopSite(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 			   std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 			   int sF, int sU,int Ls, int Ns, const FermionField &in, FermionField &out);
       
-     void DiracOptDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 			      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 			      int sF,int sU,int Ls, int Ns, const FermionField &in,FermionField &out);
 
@@ -67,24 +67,24 @@ namespace Grid {
 
     private:
      // Specialised variants
-     void DiracOptGenericDhopSite(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptGenericDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 			   std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 			   int sF,int sU, const FermionField &in, FermionField &out);
       
-     void DiracOptGenericDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptGenericDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 			      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 			      int sF,int sU,const FermionField &in,FermionField &out);
 
-     void DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 			      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 			      int sF,int sU,int Ls, int Ns, const FermionField &in, FermionField &out);
 
 
-     void DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 			      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 			      int sF,int sU,const FermionField &in, FermionField &out);
      
-     void DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+     void DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 				 std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 				 int sF,int sU,const FermionField &in, FermionField &out);
     public:
diff --git a/lib/qcd/action/fermion/WilsonKernelsAsm.cc b/lib/qcd/action/fermion/WilsonKernelsAsm.cc
index bccf72c7..cdbe2c8e 100644
--- a/lib/qcd/action/fermion/WilsonKernelsAsm.cc
+++ b/lib/qcd/action/fermion/WilsonKernelsAsm.cc
@@ -39,9 +39,9 @@ namespace QCD {
   // Default to no assembler implementation
   ///////////////////////////////////////////////////////////
 template<class Impl>
-void WilsonKernels<Impl >::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl >::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U,
 					       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-					       int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out)
+					       int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out)
 {
   assert(0);
 }
@@ -71,9 +71,9 @@ static int signInit = setupSigns();
 #define MULT_2SPIN(ptr,pf) MULT_ADDSUB_2SPIN(ptr,pf)
 
 template<>
-void WilsonKernels<WilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<WilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U,
 						     std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-						     int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out)
+						     int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out)
 #include <qcd/action/fermion/WilsonKernelsAsmBody.h>
 
 #undef VMOVIDUP
@@ -85,31 +85,31 @@ void WilsonKernels<WilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaug
 #define VMOVRDUP(A,B,C)                                  VBCASTRDUPf(A,B,C)
 #define MULT_2SPIN(ptr,pf) MULT_ADDSUB_2SPIN_LS(ptr,pf)
 template<>
-void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U,
 								   std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-								   int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out)
+								   int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out)
 #include <qcd/action/fermion/WilsonKernelsAsmBody.h>
 
 #endif
 
-template void WilsonKernels<WilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<WilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U,
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-							      int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out);		
+							      int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out);		
 
-template void WilsonKernels<WilsonImplD>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U, 
+template void WilsonKernels<WilsonImplD>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U, 
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-							       int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out);		
-template void WilsonKernels<GparityWilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U, 
+							       int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out);		
+template void WilsonKernels<GparityWilsonImplF>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U, 
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-							       int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out);		
-template void WilsonKernels<GparityWilsonImplD>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U, 
+							       int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out);		
+template void WilsonKernels<GparityWilsonImplD>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U, 
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-							       int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out);		
-template void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U, 
+							       int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out);		
+template void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U, 
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-							       int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out);		
-template void WilsonKernels<DomainWallRedBlack5dImplD>::DiracOptAsmDhopSite(StencilImpl &st,DoubledGaugeField &U, 
+							       int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out);		
+template void WilsonKernels<DomainWallRedBlack5dImplD>::DiracOptAsmDhopSite(StencilImpl &st,LebesgueOrder & lo,DoubledGaugeField &U, 
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
-							       int ss,int sU,int Ls,int Ns,const FermionField &in, FermionField &out);		
+							       int ss,int ssU,int Ls,int Ns,const FermionField &in, FermionField &out);		
 }}
 
diff --git a/lib/qcd/action/fermion/WilsonKernelsAsmBody.h b/lib/qcd/action/fermion/WilsonKernelsAsmBody.h
index aae049e2..bd96b7d5 100644
--- a/lib/qcd/action/fermion/WilsonKernelsAsmBody.h
+++ b/lib/qcd/action/fermion/WilsonKernelsAsmBody.h
@@ -1,7 +1,8 @@
 {
   int locala,perma, ptypea;
   int localb,permb, ptypeb;
-  uint64_t basea, baseb;
+  int localc,permc, ptypec;
+  uint64_t basea, baseb, basec;
   uint64_t basex;
   const uint64_t plocal =(uint64_t) & in._odata[0];
 
@@ -11,14 +12,22 @@
   MASK_REGS;
 
   for(int site=0;site<Ns;site++) {
+  int sU=lo.Reorder(ssU);
+
   for(int s=0;s<Ls;s++) {
+  ss     =sU*Ls+s;
 
   ////////////////////////////////
   // Xp
   ////////////////////////////////
   int ent=ss*8;// 2*Ndim
   basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basea);
   baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
+  PREFETCH_CHIMU(baseb);
+  basec = st.GetInfo(ptypec,localc,permc,Zp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basec);
+
   basex = basea;
 
   if ( locala ) {
@@ -38,6 +47,7 @@
   // Yp
   ////////////////////////////////
   basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basea);
   if ( localb ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
     YM_PROJMEM(baseb);
@@ -46,7 +56,7 @@
     LOAD_CHI(baseb);
   }
   {
-    MULT_2SPIN_DIR_PFYP(Yp,basea);
+    MULT_2SPIN_DIR_PFYP(Yp,basec);
   }
   LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
   YM_RECON_ACCUM;
@@ -55,15 +65,16 @@
   // Zp
   ////////////////////////////////
   baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
-  if ( locala ) {
+  PREFETCH_CHIMU(baseb);
+  if ( localc ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
-    ZM_PROJMEM(basea);
-    MAYBEPERM(PERMUTE_DIR1,perma);
+    ZM_PROJMEM(basec);
+    MAYBEPERM(PERMUTE_DIR1,permc);
   } else { 
-    LOAD_CHI(basea);
+    LOAD_CHI(basec);
   }
   {
-    MULT_2SPIN_DIR_PFZP(Zp,baseb);
+    MULT_2SPIN_DIR_PFZP(Zp,basea);
   }
   LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
   ZM_RECON_ACCUM;
@@ -71,16 +82,17 @@
   ////////////////////////////////
   // Tp
   ////////////////////////////////
-  basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
-  if ( localb ) {
+  basec = st.GetInfo(ptypec,localc,permc,Xp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basec);
+  if ( locala ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
-    TM_PROJMEM(baseb);
-    MAYBEPERM(PERMUTE_DIR0,permb);
+    TM_PROJMEM(basea);
+    MAYBEPERM(PERMUTE_DIR0,perma);
   } else { 
-    LOAD_CHI(baseb);
+    LOAD_CHI(basea);
   }
   {
-    MULT_2SPIN_DIR_PFTP(Tp,basea);
+    MULT_2SPIN_DIR_PFTP(Tp,baseb);
   }
   LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
   TM_RECON_ACCUM;
@@ -88,16 +100,17 @@
   ////////////////////////////////
   // Xm
   ////////////////////////////////
-  baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
-  if ( locala ) {
+  basea = st.GetInfo(ptypea,locala,perma,Yp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basea);
+  if ( localb ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
-    XP_PROJMEM(basea);
-    MAYBEPERM(PERMUTE_DIR3,perma);
+    XP_PROJMEM(baseb);
+    MAYBEPERM(PERMUTE_DIR3,permb);
   } else { 
-    LOAD_CHI(basea);
+    LOAD_CHI(baseb);
   }
   {
-    MULT_2SPIN_DIR_PFXM(Xm,baseb);
+    MULT_2SPIN_DIR_PFXM(Xm,basec);
   }
   LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
   XP_RECON_ACCUM;
@@ -105,13 +118,14 @@
   ////////////////////////////////
   // Ym
   ////////////////////////////////
-  basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
-  if ( localb ) {
+  baseb = st.GetInfo(ptypeb,localb,permb,Xp,ent,plocal); ent++;
+  PREFETCH_CHIMU(baseb);
+  if ( localc ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
-    YP_PROJMEM(baseb);
-    MAYBEPERM(PERMUTE_DIR2,permb);
+    YP_PROJMEM(basec);
+    MAYBEPERM(PERMUTE_DIR2,permc);
   } else { 
-    LOAD_CHI(baseb);
+    LOAD_CHI(basec);
   }
   {
     MULT_2SPIN_DIR_PFYM(Ym,basea);
@@ -122,7 +136,8 @@
   ////////////////////////////////
   // Zm
   ////////////////////////////////
-  baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
+  basec = st.GetInfo(ptypec,localc,permc,Yp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basec);
   if ( locala ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
     ZP_PROJMEM(basea);
@@ -140,6 +155,7 @@
   // Tm
   ////////////////////////////////
   basea = (uint64_t)&out._odata[ss];
+  PREFETCH_CHIMU(basea);
   if ( localb ) {
     LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
     TP_PROJMEM(baseb);
@@ -148,17 +164,15 @@
     LOAD_CHI(baseb);
   }
   {
-    MULT_2SPIN_DIR_PFTM(Tm,basea);
+    MULT_2SPIN_DIR_PFTM(Tm,basec);
   }
   LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
   TP_RECON_ACCUM;
 
-  PREFETCH_CHIMU(basex);
+  //  PREFETCH_CHIMU(basex);
   SAVE_RESULT(&out._odata[ss]);
-
   
-  ss++;
-  } 
-  sU++;
+  }
+  ssU++;
   }
 }
diff --git a/lib/qcd/action/fermion/WilsonKernelsAsmBody.h.ab b/lib/qcd/action/fermion/WilsonKernelsAsmBody.h.ab
new file mode 100644
index 00000000..3ba9eec6
--- /dev/null
+++ b/lib/qcd/action/fermion/WilsonKernelsAsmBody.h.ab
@@ -0,0 +1,163 @@
+{
+  int locala,perma, ptypea;
+  int localb,permb, ptypeb;
+  uint64_t basea, baseb;
+  uint64_t basex;
+  const uint64_t plocal =(uint64_t) & in._odata[0];
+
+  //  vComplexF isigns[2] = { signs[0], signs[1] };
+  vComplexF *isigns = &signs[0];
+
+  MASK_REGS;
+
+  for(int site=0;site<Ns;site++) {
+  int sU=lo.Reorder(ssU);  
+  for(int s=0;s<Ls;s++) {
+  ss=sU*Ls+s;
+  ////////////////////////////////
+  // Xp
+  ////////////////////////////////
+  int ent=ss*8;// 2*Ndim
+  basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
+  PREFETCH_CHIMU(basea);
+  baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
+  basex = basea;
+
+  if ( locala ) {
+    LOAD64(%r10,isigns);
+    XM_PROJMEM(basea);
+    MAYBEPERM(PERMUTE_DIR3,perma);
+  } else { 
+    LOAD_CHI(basea);
+  }
+  {
+    MULT_2SPIN_DIR_PFXP(Xp,baseb);
+  }
+  LOAD64(%r10,isigns);
+  XM_RECON;
+
+  ////////////////////////////////
+  // Yp
+  ////////////////////////////////
+  basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
+  if ( localb ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    YM_PROJMEM(baseb);
+    MAYBEPERM(PERMUTE_DIR2,permb);
+  } else { 
+    LOAD_CHI(baseb);
+  }
+  {
+    MULT_2SPIN_DIR_PFYP(Yp,basea);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  YM_RECON_ACCUM;
+
+  ////////////////////////////////
+  // Zp
+  ////////////////////////////////
+  baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
+  if ( locala ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    ZM_PROJMEM(basea);
+    MAYBEPERM(PERMUTE_DIR1,perma);
+  } else { 
+    LOAD_CHI(basea);
+  }
+  {
+    MULT_2SPIN_DIR_PFZP(Zp,baseb);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  ZM_RECON_ACCUM;
+
+  ////////////////////////////////
+  // Tp
+  ////////////////////////////////
+  basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
+  if ( localb ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    TM_PROJMEM(baseb);
+    MAYBEPERM(PERMUTE_DIR0,permb);
+  } else { 
+    LOAD_CHI(baseb);
+  }
+  {
+    MULT_2SPIN_DIR_PFTP(Tp,basea);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  TM_RECON_ACCUM;
+
+  ////////////////////////////////
+  // Xm
+  ////////////////////////////////
+  baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
+  if ( locala ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    XP_PROJMEM(basea);
+    MAYBEPERM(PERMUTE_DIR3,perma);
+  } else { 
+    LOAD_CHI(basea);
+  }
+  {
+    MULT_2SPIN_DIR_PFXM(Xm,baseb);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  XP_RECON_ACCUM;
+
+  ////////////////////////////////
+  // Ym
+  ////////////////////////////////
+  basea = st.GetInfo(ptypea,locala,perma,Xp,ent,plocal); ent++;
+  if ( localb ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    YP_PROJMEM(baseb);
+    MAYBEPERM(PERMUTE_DIR2,permb);
+  } else { 
+    LOAD_CHI(baseb);
+  }
+  {
+    MULT_2SPIN_DIR_PFYM(Ym,basea);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  YP_RECON_ACCUM;
+
+  ////////////////////////////////
+  // Zm
+  ////////////////////////////////
+  baseb = st.GetInfo(ptypeb,localb,permb,Yp,ent,plocal); ent++;
+  if ( locala ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    ZP_PROJMEM(basea);
+    MAYBEPERM(PERMUTE_DIR1,perma);
+  } else { 
+    LOAD_CHI(basea);
+  }
+  {
+    MULT_2SPIN_DIR_PFZM(Zm,baseb);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  ZP_RECON_ACCUM;
+
+  ////////////////////////////////
+  // Tm
+  ////////////////////////////////
+  basea = (uint64_t)&out._odata[ss];
+  if ( localb ) {
+    LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+    TP_PROJMEM(baseb);
+    MAYBEPERM(PERMUTE_DIR0,permb);
+  } else { 
+    LOAD_CHI(baseb);
+  }
+  {
+    MULT_2SPIN_DIR_PFTM(Tm,basea);
+  }
+  LOAD64(%r10,isigns);  // times i => shuffle and xor the real part sign bit
+  TP_RECON_ACCUM;
+
+  SAVE_RESULT(&out._odata[ss]);
+
+  } 
+  ssU++;
+  }
+}
diff --git a/lib/qcd/action/fermion/WilsonKernelsHand.cc b/lib/qcd/action/fermion/WilsonKernelsHand.cc
index 757778d3..cb6c01a1 100644
--- a/lib/qcd/action/fermion/WilsonKernelsHand.cc
+++ b/lib/qcd/action/fermion/WilsonKernelsHand.cc
@@ -312,7 +312,7 @@ namespace QCD {
 
 
 template<class Impl>
-void WilsonKernels<Impl >::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl >::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 					       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 					       int ss,int sU,const FermionField &in, FermionField &out)
 {
@@ -555,7 +555,7 @@ void WilsonKernels<Impl >::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeFiel
 }
 
 template<class Impl>
-void WilsonKernels<Impl >::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<Impl >::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 					       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 					       int ss,int sU,const FermionField &in, FermionField &out)
 {
@@ -803,7 +803,7 @@ void WilsonKernels<Impl >::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeF
   // Specialise Gparity to simple implementation
   ////////////////////////////////////////////////
 template<>
-void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 							     std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 							     int sF,int sU,const FermionField &in, FermionField &out)
 {
@@ -811,7 +811,7 @@ void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,Dou
 }
 
 template<>
-void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								int sF,int sU,const FermionField &in, FermionField &out)
 {
@@ -819,7 +819,7 @@ void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,
 }
 
 template<>
-void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 							     std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 							     int sF,int sU,const FermionField &in, FermionField &out)
 {
@@ -827,7 +827,7 @@ void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,Dou
 }
 
 template<>
-void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								int sF,int sU,const FermionField &in, FermionField &out)
 {
@@ -839,44 +839,44 @@ void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,
 ////////////// Wilson ; uses this implementation /////////////////////
 // Need Nc=3 though //
 
-template void WilsonKernels<WilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<WilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 							       int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<WilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<WilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 							       std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 							       int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<WilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<WilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								  std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								  int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<WilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<WilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								  std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								  int ss,int sU,const FermionField &in, FermionField &out);
 
 
-template void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								      int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								      int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<GparityWilsonImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 									 std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 									 int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<GparityWilsonImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 									 std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 									 int ss,int sU,const FermionField &in, FermionField &out);
 
 
-template void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								      int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<DomainWallRedBlack5dImplD>::DiracOptHandDhopSite(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<DomainWallRedBlack5dImplD>::DiracOptHandDhopSite(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 								      std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 								      int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<DomainWallRedBlack5dImplF>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 									 std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 									 int ss,int sU,const FermionField &in, FermionField &out);
-template void WilsonKernels<DomainWallRedBlack5dImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,DoubledGaugeField &U,
+template void WilsonKernels<DomainWallRedBlack5dImplD>::DiracOptHandDhopSiteDag(StencilImpl &st,LebesgueOrder &lo,DoubledGaugeField &U,
 									 std::vector<SiteHalfSpinor,alignedAllocator<SiteHalfSpinor> >  &buf,
 									 int ss,int sU,const FermionField &in, FermionField &out);
 
diff --git a/lib/simd/Intel512common.h b/lib/simd/Intel512common.h
index 2fea9235..a3cd980d 100644
--- a/lib/simd/Intel512common.h
+++ b/lib/simd/Intel512common.h
@@ -88,7 +88,11 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 
 #define VPREFETCHG(O,A) "prefetcht0 "#O"*64("#A");\n" 
 #define VPREFETCH2(O,A) "prefetcht1 "#O"*64("#A");\n" 
+#define VPREFETCHP(O,A) "prefetcht1 "#O"*64("#A");\n" 
 #define VPREFETCHW(O,A) "prefetchwt1 "#O"*64("#A");\n" 
+#define VPREFETCHNTA(O,A) 
+#define VPREFETCH(O,A)    
+
 #define VEVICT(O,A)   
 
 //"vprefetche0 "#O"*64("#A");\n" "vprefetche1 ("#O"+12)*64("#A");\n"
@@ -124,8 +128,6 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
 #define ZLOADf(OFF,PTR,ri,ir)  VLOADf(OFF,PTR,ir)  VSHUFf(ir,ri)
 #define ZLOADd(OFF,PTR,ri,ir)  VLOADd(OFF,PTR,ir)  VSHUFd(ir,ri)
 
-#define VPREFETCHNTA(O,A) 
-#define VPREFETCH(O,A)    
 
 #define VSTOREf(OFF,PTR,SRC)   "vmovaps " #SRC "," #OFF "*64(" #PTR ")"  ";\n"
 #define VSTOREd(OFF,PTR,SRC)   "vmovapd " #SRC "," #OFF "*64(" #PTR ")"  ";\n"
diff --git a/lib/simd/Intel512wilson.h b/lib/simd/Intel512wilson.h
index 1955cc6d..2bc0545d 100644
--- a/lib/simd/Intel512wilson.h
+++ b/lib/simd/Intel512wilson.h
@@ -559,22 +559,23 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
   VSUB(UChi_02,result_22,result_22)\
   VSUB(UChi_12,result_32,result_32) );
 
-#define PREFETCH_CHIMU(A) \
+#define PREFETCH_CHIMU(A) 
+/*
   LOAD64(%r9,A)						\
 	   __asm__ (						\
-  VPREFETCHG(12,%r9)\
-  VPREFETCHG(13,%r9)\
-  VPREFETCHG(14,%r9)\
-  VPREFETCHG(15,%r9)\
-  VPREFETCHG(16,%r9)\
-  VPREFETCHG(17,%r9)\
-  VPREFETCHG(18,%r9)\
-  VPREFETCHG(19,%r9)\
-  VPREFETCHG(20,%r9)\
-  VPREFETCHG(21,%r9)\
-  VPREFETCHG(22,%r9)\
-  VPREFETCHG(23,%r9));
-
+  VPREFETCHG(0,%r9)\
+  VPREFETCHG(1,%r9)\
+  VPREFETCHG(2,%r9)\
+  VPREFETCHG(3,%r9)\
+  VPREFETCHG(4,%r9)\
+  VPREFETCHG(5,%r9)\
+  VPREFETCHG(6,%r9)\
+  VPREFETCHG(7,%r9)\
+  VPREFETCHG(8,%r9)\
+  VPREFETCHG(9,%r9)\
+  VPREFETCHG(10,%r9)\
+  VPREFETCHG(11,%r9));
+*/
 #define PERMUTE_DIR0 __asm__ ( 	\
   VPERM0(Chi_00,Chi_00)	\
   VPERM0(Chi_01,Chi_01)	\
@@ -612,8 +613,7 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
   LOAD64(%r8,ptr)						\
   LOAD64(%r9,pf)						\
 	   __asm__ (						\
-	   VPREFETCH2(9,%r8)				   \
-	   VPREFETCH2(10,%r8)					   \
+	   VPREFETCH2(9,%r8)				   VPREFETCH2(10,%r8)					   \
 	   VPREFETCH2(11,%r8)					   \
 	   VPREFETCH2(12,%r8)					   \
 	   VPREFETCH2(13,%r8)					   \
diff --git a/lib/stencil/Lebesgue.cc b/lib/stencil/Lebesgue.cc
index 7704e08f..c34b5c96 100644
--- a/lib/stencil/Lebesgue.cc
+++ b/lib/stencil/Lebesgue.cc
@@ -49,16 +49,25 @@ LebesgueOrder::LebesgueOrder(GridBase *_grid)
 {
   grid = _grid;
   if ( Block[0]==0) ZGraph();
+  else if ( Block[1]==0) NoBlocking();
   else CartesianBlocking();
 }
 
+void LebesgueOrder::NoBlocking(void) 
+{
+  std::cout<<GridLogDebug<<"Lexicographic : no cache blocking"<<std::endl;
+  _LebesgueReorder.resize(0);
+  for ( int s = 0 ; s!= grid->oSites();s++){
+    _LebesgueReorder.push_back(s);
+  }
+}
 void LebesgueOrder::CartesianBlocking(void) 
 {
   _LebesgueReorder.resize(0);
 
-  std::cout << GridLogMessage << " CartesianBlocking ";
-  for(int d=0;d<Block.size();d++) std::cout <<Block[d]<<" ";
-  std::cout<<std::endl; 
+  std::cout << GridLogDebug << " CartesianBlocking ";
+  //    for(int d=0;d<Block.size();d++) std::cout <<Block[d]<<" ";
+  //    std::cout<<std::endl; 
 
   IndexInteger ND = grid->_ndimension;
 
@@ -116,7 +125,8 @@ void LebesgueOrder::IterateI(int ND,
 void LebesgueOrder::ZGraph(void) 
 {
   _LebesgueReorder.resize(0);
-  
+
+  std::cout << GridLogDebug << " Lebesgue order "<<std::endl;
   // Align up dimensions to power of two.
   const IndexInteger one=1;
 
diff --git a/lib/stencil/Lebesgue.h b/lib/stencil/Lebesgue.h
index f69b089d..1675d16c 100644
--- a/lib/stencil/Lebesgue.h
+++ b/lib/stencil/Lebesgue.h
@@ -59,6 +59,7 @@ namespace Grid {
     // Cartesian stencil blocking strategy
     /////////////////////////////////
     static std::vector<int> Block;
+    void NoBlocking(void);
     void CartesianBlocking(void);
     void IterateO(int ND,int dim,
 		  std::vector<IndexInteger> & xo,