add speed test

test/Makefile

@@ -1,17 +1,17 @@
 export CC  = gcc
 export CXX = g++
 export MPICXX = mpicxx
-export LDFLAGS= -pthread -lm 
+export LDFLAGS= -pthread -lm  -lrt
 export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fPIC -I../src
 
 # specify tensor path
-BIN = test_allreduce test_recover test_model_recover
+BIN = test_allreduce test_recover test_model_recover speed_test
 # objectives that makes up rabit library
 RABIT_OBJ = allreduce_base.o allreduce_robust.o engine.o
 MPIOBJ = engine_mpi.o
 
-OBJ = $(RABIT_OBJ) test_allreduce.o test_recover.o test_model_recover.o
-MPIBIN = test_allreduce.mpi
+OBJ = $(RABIT_OBJ) test_allreduce.o test_recover.o test_model_recover.o speed_test.o
+MPIBIN = test_allreduce.mpi speed_test.mpi
 .PHONY: clean all
 
 all: $(BIN) $(MPIBIN)
@@ -21,23 +21,26 @@ engine.o: ../src/engine.cc ../src/*.h
 allreduce_robust.o: ../src/allreduce_robust.cc ../src/*.h
 engine_mpi.o: ../src/engine_mpi.cc
 test_allreduce.o: test_allreduce.cpp ../src/*.h
+speed_test.o: speed_test.cpp ../src/*.h
 test_recover.o: test_recover.cpp ../src/*.h 
 test_model_recover.o: test_model_recover.cpp ../src/*.h
 
 # we can link against MPI version to get use MPI
 test_allreduce: test_allreduce.o  $(RABIT_OBJ)
 test_allreduce.mpi: test_allreduce.o $(MPIOBJ)
+speed_test: speed_test.o  $(RABIT_OBJ)
+speed_test.mpi: speed_test.o $(MPIOBJ)
 test_recover: test_recover.o  $(RABIT_OBJ)
 test_model_recover: test_model_recover.o  $(RABIT_OBJ)
 
 $(BIN) : 
-	$(CXX) $(CFLAGS) $(LDFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc, $^)
+	$(CXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc, $^) $(LDFLAGS)
 
 $(OBJ) : 
 	$(CXX) -c $(CFLAGS) -o $@ $(firstword $(filter %.cpp %.c %.cc, $^) )
 
 $(MPIBIN) : 
-	$(MPICXX) $(CFLAGS)  $(LDFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc, $^)
+	$(MPICXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc, $^) $(LDFLAGS)
 
 $(MPIOBJ) : 
 	$(MPICXX) -c $(CFLAGS) -o $@ $(firstword $(filter %.cpp %.c %.cc, $^) )