-The memory hierarchy of GPUs\index{Memory~hierarchy} is different from the CPUs
-one. In practice, there are registers\index{Memory~hierarchy!registers}, local
-memory\index{Memory~hierarchy!local~memory}, shared
-memory\index{Memory~hierarchy!shared~memory}, cache
-memory\index{Memory~hierarchy!cache~memory} and global
-memory\index{Memory~hierarchy!global~memory}.
+The memory hierarchy of GPUs\index{memory~hierarchy} is different from the CPUs
+one. In practice, there are registers\index{memory~hierarchy!registers}, local
+memory\index{memory~hierarchy!local~memory}, shared
+memory\index{memory~hierarchy!shared~memory}, cache
+memory\index{memory~hierarchy!cache~memory} and global
+memory\index{memory~hierarchy!global~memory}.