--- a/fft_fixstart/main.cc	Tue Feb 05 13:32:08 2013 +0900
+++ b/fft_fixstart/main.cc	Tue Feb 05 15:12:19 2013 +0900
@@ -137,14 +137,12 @@
             filename = argv[i+1];
         } else if (strcmp(argv[i], "-cpu") == 0) {
             device_type = CL_DEVICE_TYPE_CPU;
-            printf("cpu!\n");
         } else if (strcmp(argv[i], "-gpu") == 0) {
             device_type = CL_DEVICE_TYPE_GPU;
-            printf("gpu!\n");
         }
     }
     if ( (argc == 1)||(filename==0)) {
-        printf("Usage: ./fft [image filename]\n");
+        printf("Usage: ./fft -file [image filename] -cpu or -gpu \n");
         exit(-1);
     }
 
@@ -224,7 +222,6 @@
         }
     }
 
-    st_time = getTime();
     /* Get platform/device  */
     ret = clGetPlatformIDs(1, &platform_id, &ret_num_platforms);
 
@@ -241,6 +238,9 @@
     rmobj = clCreateBuffer(context, CL_MEM_READ_WRITE, n*n*sizeof(cl_float2), NULL, &ret);
     wmobj = clCreateBuffer(context, CL_MEM_READ_WRITE, (n/2)*sizeof(cl_float2), NULL, &ret);
 
+
+    st_time = getTime();
+    
     /* Transfer data to memory buffer */
     ret = clEnqueueWriteBuffer(queue, xmobj, CL_TRUE, 0, n*n*sizeof(cl_float2), xm, 0, NULL, NULL);