--- a/src/parallel_execution/context.h	Tue Feb 02 16:12:34 2016 +0900
+++ b/src/parallel_execution/context.h	Wed Mar 02 19:23:00 2016 +0900
@@ -1,9 +1,17 @@
 /* Context definition for llrb example */
 #include <pthread.h>
+#ifdef USE_CUDA
 #include <cuda.h>
+#endif
 #include "stack.h"
 
 #define ALLOCATE_SIZE 20000000
+#define NEW(type) (type*)(calloc(1, sizeof(type)))
+#define NEWN(n, type) (type*)(calloc(n, sizeof(type)))
+
+#define ALLOC_DATA(context, dseg) ({ context->data[dseg] = context->heap; context->heap += sizeof(struct dseg); (struct dseg *)context->data[dseg]; })
+
+#define ALLOC_DATA_TYPE(context, dseg, type) ({ context->data[dseg] = context->heap; context->heap += sizeof(struct type); (struct type *)context->data[dseg]; })
 
 enum Code {
     Code1,
@@ -107,6 +115,7 @@
         int num;
         struct Context* contexts;
     } worker;
+#ifdef USE_CUDA
     struct CudaTask {
         CUdevice device;
         CUcontext cuCtx;
@@ -114,6 +123,7 @@
         CUdeviceptr* deviceptr;
         CUstream stream;
     } cudatask;
+#endif
     struct Task {
         enum Code code;
         int key;