tests!

tests/sp2n/Test_project_on_Sp.cc

@@ -0,0 +1,35 @@
+#include <Grid/Grid.h>
+
+using namespace Grid;
+
+int main (int argc, char **argv)
+{
+     Grid_init(&argc,&argv);
+    
+    
+    Coordinate latt_size   = GridDefaultLatt();
+    Coordinate simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
+    Coordinate mpi_layout  = GridDefaultMpi();
+
+    GridCartesian             Grid(latt_size,simd_layout,mpi_layout);
+    GridRedBlackCartesian     RBGrid(&Grid);
+    
+    
+    LatticeGaugeField Umu(&Grid);
+    LatticeColourMatrixD U(&Grid);
+    
+    std::vector<int> pseeds({1,2,3,4,5});
+    std::vector<int> sseeds({6,7,8,9,10});
+    GridParallelRNG  pRNG(&Grid); pRNG.SeedFixedIntegers(pseeds);
+    GridSerialRNG    sRNG;       sRNG.SeedFixedIntegers(sseeds);
+    
+    SU<Nc>::HotConfiguration(pRNG,Umu);
+    U = PeekIndex<LorentzIndex>(Umu,0);
+    
+    
+    U = ProjectOnSpGroup(U);
+    
+    Grid_finalize();
+
+
+}