configs : added output label description depending on option set

cpp/config.hpp

@@ -14,12 +14,19 @@
 __device__ constexpr const size_t M = 5; //log2(NB_THREADS_2D_Y));
 #endif
 
-// Save state to avoid recalulation on restart
+// Save state to avoid recalculation on restart
 #define SAVE_STATE true
 // Redo the state even if it's already saved
 #define FORCE_REDO false
+
 // Use GPU to greatly accelerate runtime
 #define GPU_BOOSTED true
+// Depending on what you set, the output label will be as follow :
+// | GPU_BOOSTED | LABEL |
+// |-------------|-------|
+// | true        | GPU   |
+// | false       | CPU   |
+
 // Number of weak classifiers
 // const size_t TS[] =  { 1 };
 // const size_t TS[] =  { 1, 5, 10 };