issue #22 copy _next_ pointer if odd iter, _current_ if even

host/src/performdocking.cpp

@@ -1102,8 +1102,15 @@ filled with clock() */
 	// ===============================================================================
 
 	//processing results
-	memcopyBufferObjectFromDevice(command_queue,cpu_final_populations,mem_dockpars_conformations_current,size_populations);
-	memcopyBufferObjectFromDevice(command_queue,cpu_energies,mem_dockpars_energies_current,size_energies);
+	if (generation_cnt % 2 == 0) {
+		memcopyBufferObjectFromDevice(command_queue,cpu_final_populations,mem_dockpars_conformations_current,size_populations);
+		memcopyBufferObjectFromDevice(command_queue,cpu_energies,mem_dockpars_energies_current,size_energies);
+	}
+	if (generation_cnt % 2 == 1) { 
+		memcopyBufferObjectFromDevice(command_queue,cpu_final_populations,mem_dockpars_conformations_next,size_populations);
+		memcopyBufferObjectFromDevice(command_queue,cpu_energies,mem_dockpars_energies_next,size_energies);
+	}
+    
 
 #if defined (DOCK_DEBUG)
 	for (int cnt_pop=0;cnt_pop<size_populations/sizeof(float);cnt_pop++)