From ff1fa988085ae868ae603fe9562968b3dcd57da2 Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Thu, 21 Jan 2021 21:38:23 -0500
Subject: [PATCH 1/2] Fix for GPU conserveed current

---
 Grid/qcd/action/fermion/WilsonImpl.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Grid/qcd/action/fermion/WilsonImpl.h b/Grid/qcd/action/fermion/WilsonImpl.h
index 52e1ee00..d7941d1f 100644
--- a/Grid/qcd/action/fermion/WilsonImpl.h
+++ b/Grid/qcd/action/fermion/WilsonImpl.h
@@ -106,11 +106,15 @@ public:
 			    const _SpinorField & phi,
 			    int mu)
   {
+    const int Nsimd = SiteHalfSpinor::Nsimd();
     autoView( out_v, out, AcceleratorWrite);
     autoView( phi_v, phi, AcceleratorRead);
     autoView( Umu_v, Umu, AcceleratorRead);
-    accelerator_for(sss,out.Grid()->oSites(),1,{
-	multLink(out_v[sss],Umu_v[sss],phi_v[sss],mu);
+    typedef decltype(coalescedRead(out_v[0]))   calcSpinor;
+    accelerator_for(sss,out.Grid()->oSites(),Nsimd,{
+	calcSpinor tmp;
+	multLink(tmp,Umu_v[sss],phi_v(sss),mu);
+	coalescedWrite(out_v[sss],tmp);
     });
   }
 					   

From 11a5fd09d65427aaaa68d9dc28318bfe92b08097 Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Thu, 21 Jan 2021 21:39:41 -0500
Subject: [PATCH 2/2] Hot config

---
 tests/debug/Test_cayley_mres.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/debug/Test_cayley_mres.cc b/tests/debug/Test_cayley_mres.cc
index 5282c756..ea88885e 100644
--- a/tests/debug/Test_cayley_mres.cc
+++ b/tests/debug/Test_cayley_mres.cc
@@ -117,8 +117,8 @@ int main (int argc, char ** argv)
   else
   {
     std::cout<<GridLogMessage <<"Using cold configuration"<<std::endl;
-    SU<Nc>::ColdConfiguration(Umu);
-    //  SU<Nc>::HotConfiguration(RNG4,Umu);
+    //SU<Nc>::ColdConfiguration(Umu);
+    SU<Nc>::HotConfiguration(RNG4,Umu);
   }
 
   RealD mass=0.3;