Rearranging files in hmc

lib/qcd/hmc/integrators/Integrator.cc

@@ -0,0 +1,28 @@
+/*! 
+  @file Integrator_base.cc
+  @brief utilities for MD including funcs to generate initial HMC momentum
+ */
+
+#include <Grid.h>
+
+namespace Grid{
+  namespace QCD{
+
+    void MDutils::generate_momenta(LatticeLorentzColourMatrix& P,GridParallelRNG& pRNG){
+      // for future support of different groups
+      MDutils::generate_momenta_su3(P, pRNG);
+    }
+
+    void MDutils::generate_momenta_su3(LatticeLorentzColourMatrix& P,GridParallelRNG& pRNG){
+      LatticeColourMatrix Pmu(P._grid);
+      Pmu = zero;
+      for(int mu=0;mu<Nd;mu++){
+	SU3::GaussianLieAlgebraMatrix(pRNG, Pmu);
+	pokeLorentz(P, Pmu, mu);
+      }
+      
+    }
+
+
+  }
+}