added kernel measurement AssocToBlock

apps/benchmarks/GranularGas/MESA_PD_KernelLoadBalancing.cpp

@@ -258,6 +258,14 @@ int main( int argc, char ** argv )
    WcTimingPool tpImbalanced;
    WcTimingPool tpBalanced;
 
+   WALBERLA_MPI_BARRIER();
+   tpImbalanced["AssocToBlock"].start();
+   for (int64_t i=0; i < params.simulationSteps; ++i)
+   {
+      ps->forEachParticle(true, kernel::SelectLocal(), accessor, assoc, accessor);
+   }
+   tpImbalanced["AssocToBlock"].end();
+
    WALBERLA_MPI_BARRIER();
    tpImbalanced["GenerateLinkedCells"].start();
    for (int64_t i=0; i < params.simulationSteps; ++i)
@@ -358,6 +366,14 @@ int main( int argc, char ** argv )
       sortParticleStorage(*ps, params.sorting, lc->domain_, uint_c(lc->numCellsPerDim_[0]));
    }
 
+   WALBERLA_MPI_BARRIER();
+   tpBalanced["AssocToBlock"].start();
+   for (int64_t i=0; i < params.simulationSteps; ++i)
+   {
+      ps->forEachParticle(true, kernel::SelectLocal(), accessor, assoc, accessor);
+   }
+   tpBalanced["AssocToBlock"].end();
+
    WALBERLA_MPI_BARRIER();
    tpBalanced["GenerateLinkedCells"].start();
    for (int64_t i=0; i < params.simulationSteps; ++i)