Changes between Version 14 and Version 15 of 2021WP/HPC-02_Daley_Tiling

Timestamp:

2021-05-07T15:45:47+02:00 (3 years ago)

Author:

hadcv

Comment:

--

2021WP/HPC-02_Daley_Tiling

@@ -315 +315 @@
  * Is this change expected to preserve all diagnostics? __NO__
   * If no, is reason for the change valid/understood? __YES (see [http://forge.ipsl.jussieu.fr/nemo/wiki/2021WP/HPC-02_Daley_Tiling#Knownfailures known failures])__
- * Are there significant changes in run time/memory? **TBD**
+ * Are there significant changes in run time/memory? __NO__
+  * Difference in ORCA2_ICE_PISCES/REPRO* execution times, with respect to the trunk using `nn_hls = 1`
+   * QCO, `nn_hls = 1`: <5%
+   * QCO, `nn_hls = 2`: +5-8%
+   * QCO, `nn_hls = 2`, 5x5 tiling: +11-13%
+   * non-QCO, `nn_hls = 1`: <5%
+   * non-QCO, `nn_hls = 2`: +6-7%
+   * non-QCO, `nn_hls = 2`, 5x5 tiling: +7-9%
+  * The increase due to tiling is likely because the 5x5 tile size is not optimal (`nn_ltile_i < Ni_0` causes performance loss)
+  * Icebergs are turned off
 
 === Development testing