finish LRU cache

readme.md

+TODO
+[✔] LRU
+[] FIFO
+[] LFU
+[] doc
+[] test
\ No newline at end of file

src/cuda/atomic_ops.cu

@@ -2,6 +2,7 @@
 #include <iostream>
 #include <iostream>
 
 
 /*
 /*
- *  different
+ *  different cuda device has different atomic function, so need to adapt them
+ *  https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#atomic-functions
  */
  */
 
 

src/test.cu

-#include <cuda_runtime.h>
\ No newline at end of file