Changes between Version 2 and Version 3 of kernel_miscelaneous

Timestamp:

Jan 17, 2015, 1:47:36 PM (9 years ago)

Author:

alain

Comment:

--

kernel_miscelaneous

@@ -29 +29 @@
 
 === void '''_get_sbt_footprint'''( unsigned int* width,  unsigned int* heigth,  unsigned int* levels ) ===
-This function computes the footprint of the smallest SBT (Sliced Binary tree) covering
-all clusters containing processors in a platform. The SBT footprint is defined by the '''width''' and '''heigth''' parameters, with the following constraints:
+A Sliced Binary Tree (SBT) can be used to implement a scalable, distributed synchronisation, such as a sbt_barrier or a sbt_lock. This function computes the footprint of the smallest SBT  covering all clusters containing processors in a platform. The SBT footprint is defined by the '''width''' and  '''heigth''' parameters. The '''levels''' parameter define the number of levels between the root and the leaves, with the following constraints:
  * cluster[0][0] is always covered by the SBT
  * the number of clusters in a row (width) is always power of 2