Changes between Version 1 and Version 2 of kernel_barriers

Timestamp:

Jan 19, 2015, 8:25:24 PM (10 years ago)

Author:

alain

Comment:

--

kernel_barriers

@@ -10 +10 @@
  1. The '''simple_barrier_t''' implements a non-distributed toggle barrier. the number of expected tasks can be defined by the software. It can be safely used several times. 
 
- 2. The '''sqt_barrier_t''' is physically distributed on all clusters, and is intended to avoid contention on a single cluster  when a barrier is shared by a large number of tasks. It is implemented as a Synchronisation Quad Tree (SQT). For now, the number of expected tasks is defined by the number of processors specified in the mapping, and we use the smallest SQT covering all processors.
+ 2. The '''sqt_barrier_t''' is physically distributed on all clusters, and is intended to avoid contention on a single cluster  when a barrier is shared by a large number of tasks. It is implemented as a Synchronisation Quad Tree (SQT). For now, the number of expected tasks is defined by the number of processors specified in the mapping (NB_TOTAL_PROCS).
 
 All access functions are prefixed by "_" to remind that they can only be executed by a processor in kernel mode.
 
-The '''simple_barrier_t''' and '''sqt_barrier_t''', structures are implemented to have one single barrier in a 64 bytes cache line, and should be aligned on a cache line boundary.
+The '''simple_barrier_t''' and '''sqt_barrier_t''', structures are implemented to have one single barrier node in a 64 bytes cache line, and should be aligned on a cache line boundary.