--- a/src/parallel_execution/cuda.c	Tue Oct 17 02:09:14 2017 +0900
+++ b/src/parallel_execution/cuda.c	Tue Oct 17 15:47:33 2017 +0900
@@ -84,8 +84,7 @@
     printf("cuda Init: Done\n");
 }
 
-
-void cudaExec(struct Context* context, struct CudaBuffer* buffer, char* filename, char* function) {
+void cudaRead(struct CudaBuffer* buffer) {
     buffer->kernelParams = (void **)calloc(buffer->inputLen + buffer->outputLen, sizeof(void *));
     int paramCount = 0;
     for (int i = 0; i < buffer->inputLen; i++) {
@@ -105,18 +104,21 @@
         checkCudaErrors(cuMemcpyHtoD(*deviceptr, buffer->outputData[i], GET_SIZE(buffer->outputData[i])));
         buffer->kernelParams[paramCount++] = deviceptr;
     }
+}
 
-    // カーネルが定義されてなければそれをロードする
+void cudaLoadFunction(struct Context* context, char* filename, char* function) {
     checkCudaErrors(cuModuleLoad(&context->module, filename));
     checkCudaErrors(cuModuleGetFunction(&context->function, context->module, function));
+}
 
+void cudaExec2(struct Context* context, struct CudaBuffer* buffer) {
     // Asynchronous launch kernel
     context->num_exec = 1;
     if (context->iterate) {
         struct MultiDimIterator* iterator = &context->iterator->iterator->MultiDimIterator;
         checkCudaErrors(cuLaunchKernel(context->function,
-                    iterator->x, iterator->y, iterator->z,
-                    1, 1, 1,
+                    iterator->x/1024, iterator->y, iterator->z,
+                    1024, 1, 1,
                     0, NULL, buffer->kernelParams, NULL));
 
     } else {
@@ -125,10 +127,12 @@
                     1, 1, 1,
                     0, NULL, buffer->kernelParams, NULL));
     }
+}
 
+void cudaWrite(struct CudaBuffer* buffer) {
     //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   
-    paramCount = 0;
+    int paramCount = 0;
     for (int i = 0; i < buffer->inputLen; i++) {
         CUdeviceptr* deviceptr =  buffer->kernelParams[paramCount++];
         checkCudaErrors(cuMemcpyDtoH(buffer->inputData[i], *deviceptr, GET_SIZE(buffer->inputData[i])));
@@ -147,6 +151,14 @@
     checkCudaErrors(cuCtxSynchronize());
 }
 
+void cudaExec(struct Context* context, struct CudaBuffer* buffer, char* filename, char* function) {
+    // カーネルが定義されてなければそれをロードする
+    cudaLoadFunction(context, filename, function);
+    cudaRead(buffer);
+    cudaExec2(context, buffer);
+    cudaWrite(buffer);
+}
+
 void cudaShutdown( struct CUDAWorker *worker) {
     //    for (int i=0;i<worker->num_stream;i++)
     //        checkCudaErrors(cuStreamDestroy(worker->stream[i]));