diff --git a/P2/Makefile b/P2/Makefile
index d4eb10e213e97cd1fd4b0b2f31b17b0c0a50fa45..0228e8f5b6f18e38f953776a7dfa3b7bec06f73f 100644
--- a/P2/Makefile
+++ b/P2/Makefile
@@ -26,7 +26,7 @@ globals.o: globals.cpp globals.hpp mlp_sgd_distributed.cpp
 	$(CXX) $(CXXFLAGS) -c globals.cpp
 
 run: $(TARGET)
-	mpirun -np 4 ./$(TARGET)
+	mpirun -np 2 ./$(TARGET)
 
 clean:
 	rm -f $(OBJ) $(TARGET)