Adaptive algorithms: do not call L2P on empty leaves

Src/Adaptive/new/FAdaptiveSequential.hpp

@@ -264,7 +264,9 @@ public:
     // L2P
     void down_to_target() {
         for(node_t* leaf : _tree.leaves()) {
-            _kernel.L2P(leaf->getData(), leaf->getParticleContainer());
+            if(leaf->getParticleContainer()->size() != 0) {
+                _kernel.L2P(leaf->getData(), leaf->getParticleContainer());
+            }
         }
     }
 

Src/Adaptive/new/FAdaptiveTask.hpp

@@ -846,12 +846,14 @@ public:
     // L2P
     void down_to_target() {
         for(node_t* leaf : _tree.leaves()) {
-            const char* data_dep = get_dependency<dep_t::L>(leaf); (void)data_dep;
-            const char* pt_dep = get_dependency<dep_t::P_t>(leaf); (void)pt_dep;
-            #pragma omp task depend(inout: pt_dep[:1]) depend(in: data_dep[:1])
-            {
-                const int thread_num = omp_get_thread_num();
-                this->_kernels[thread_num]->L2P(leaf->getData(), leaf->getParticleContainer());
+            if(leaf->getParticleContainer()->size() != 0) {
+                const char* data_dep = get_dependency<dep_t::L>(leaf); (void)data_dep;
+                const char* pt_dep = get_dependency<dep_t::P_t>(leaf); (void)pt_dep;
+                #pragma omp task depend(inout: pt_dep[:1]) depend(in: data_dep[:1])
+                {
+                    const int thread_num = omp_get_thread_num();
+                    this->_kernels[thread_num]->L2P(leaf->getData(), leaf->getParticleContainer());
+                }
             }
         }
         // #pragma omp taskwait