--- a/src/parallel_execution/CUDAExecutor.cbc	Fri Jan 05 18:13:04 2018 +0900
+++ b/src/parallel_execution/CUDAExecutor.cbc	Sun Jan 07 06:30:49 2018 +0900
@@ -1,10 +1,12 @@
 #include "../context.h"
 #interface "Executor.h"
+#interface "Timer.h"
 #include <stdio.h>
 
 Executor* createCUDAExecutor(struct Context* context, CUdevice device) {
     struct Executor* executor = new Executor();
     struct CUDAExecutor* cudaExecutor = new CUDAExecutor();
+    cudaExecutor->timer = createTimerImpl(context);
     checkCudaErrors(cuDeviceGetAttribute(&cudaExecutor->maxThreadPerBlock, CU_DEVICE_ATTRIBUTE_MAX_THREADS_PER_BLOCK, device));
     executor->executor = (union Data*)cudaExecutor;
     executor->read  = C_readCUDAExecutor;
@@ -28,7 +30,8 @@
     }
     // TODO: Implements pipeline
     // goto next(...);
-    goto meta(context, C_execCUDAExecutor);
+    struct Timer* timer = executor->timer;
+    goto timer->start(execCUDAExecutor);
 }
 
 int computeblockDim(int count, int maxThreadPerBlock) {
@@ -55,12 +58,18 @@
     }
     // TODO: Implements pipeline
     // goto next(...);
-    goto meta(context, C_writeCUDAExecutor);
+    goto writeCUDAExecutor();
 }
 
 __code writeCUDAExecutor(struct CUDAExecutor* executor, struct Context* task, __code next(...)) {
+    // wait for stream
+    checkCudaErrors(cuCtxSynchronize());
+    struct Timer* timer = executor->timer;
+    goto timer->end(writeCUDAExecutor1);
+}
+
+__code writeCUDAExecutor1(struct CUDAExecutor* executor, struct Context* task, __code next(...)) {
     //結果を取ってくるコマンドを入力する
-    //コマンドの終了待ちを行う   
     struct CUDABuffer* buffer = executor->buffer;
     int paramLen = buffer->inputLen + buffer->outputLen;
     for (int i = 0; i < paramLen; i++) {
@@ -69,7 +78,5 @@
         checkCudaErrors(cuMemcpyDtoH(data, deviceptr, GET_SIZE(data)));
         cuMemFree(deviceptr);
     }
-    // wait for stream
-    checkCudaErrors(cuCtxSynchronize());
     goto next(...);
 }

--- a/src/parallel_execution/context.h	Fri Jan 05 18:13:04 2018 +0900
+++ b/src/parallel_execution/context.h	Sun Jan 07 06:30:49 2018 +0900
@@ -378,6 +378,7 @@
         CUdeviceptr** kernelParams;
         struct CUDABuffer* buffer;
         int maxThreadPerBlock;
+        struct Timer* timer;
     } CUDAExecutor;
     struct CUDABuffer {
         int inputLen;