Update README.md

README.md

@@ -53,3 +53,41 @@ make asm
 The assembler files will also be located in the `<TOOLCHAIN>` directory.
 
 ## Usage
+
+To run just call:
+```
+./bwBench-<TOOLCHAIN>
+```
+
+The benchmark will output the results similar to the stream benchmark. Results are validated.
+For threaded execution it is recommended to control thread affinity.
+
+We recommend to use likwid-pin for benchmarking:
+```
+likwid-pin -c 0-3 ./bwbench-GCC  
+```
+
+Example output for threaded version:
+```
+-------------------------------------------------------------
+[pthread wrapper] 
+[pthread wrapper] MAIN -> 0
+[pthread wrapper] PIN_MASK: 0->1  1->2  2->3  
+[pthread wrapper] SKIP MASK: 0x0
+        threadid 140271463495424 -> core 1 - OK
+        threadid 140271455102720 -> core 2 - OK
+        threadid 140271446710016 -> core 3 - OK
+OpenMP enabled, running with 4 threads
+-------------------------------------------------------------
+Function      Rate (MB/s)   Avg time     Min time     Max time
+Init:        14681.5000       0.0110       0.0109       0.0111
+Sum:         20634.9290       0.0079       0.0078       0.0082
+Copy:        18822.2827       0.0172       0.0170       0.0176
+Update:      28135.9717       0.0115       0.0114       0.0117
+Triad:       19263.0634       0.0253       0.0249       0.0268
+Daxpy:       26718.1377       0.0182       0.0180       0.0187
+STriad:      21229.4470       0.0305       0.0301       0.0313
+SDaxpy:      26714.3897       0.0243       0.0240       0.0253
+-------------------------------------------------------------
+Solution Validates
+```