Changes between Version 3 and Version 4 of ticket/0681

Timestamp:

2010-09-08T17:21:44+02:00 (14 years ago)

Author:

djlea

Comment:

--

ticket/0681

@@ -23 +23 @@
 ||NVTK Tested|| Not yet although a similar ORCA2 test within the Met Office see below for description ||
 ||Other model configurations|| YES ORCA025 ||
-||Processor configurations tested|| ORCA2: 1 proc     ORCA025: 128 proc (16 x 8) ||
+||Processor configurations tested|| ORCA2: 1 (1x1), 2 (1x2), 4 (4x1) and 8 (4x2) processors     ORCA025: 128 proc (16 x 8) ||
 ||If adding new functionality please confirm that the [[BR]]New code doesn't change results when it is switched off [[BR]]and !''works!'' when switched on|| YES for both (see below) ||
 
@@ -36 +36 @@
  5. Run with the OBS and ASM branches with sample observations and a sample increments files with the observation operator and assimilation increments code turned on in the namelist
 
-Tests 1, 2, 3 and 4 all produce identical restart files at the end of the run. Test 5 produces a restart file which differs from the previous tests by approximately the same amount as the change specified in the increments file. This shows that the change has no impact on the rest of the model except if we decide we wish to apply increments to the model fields.
+Tests 1, 2, 3 and 4 all produce identical restart files at the end of the run. Test 5 produces a restart file which differs from the previous tests by approximately the same amount as the change specified in the increments file. This shows that the change has no impact on the rest of the model except if we decide we wish to apply increments to the model fields. Tests 4 and 5 were run in 1x1, 1x2, 4x1 and 4x2 processor configuration with bit comparison turned on. The model fields bit compare with all these runs. The observation feedback files are also identical. 
 
 === Bit Comparability ===
 ||Does this change preserve answers in your tested standard configurations (to the last bit) ?|| YES ||
-||Does this change bit compare across various processor configurations. (1xM, Nx1 and MxN are recommended)|| NO ||
+||Does this change bit compare across various processor configurations. (1xM, Nx1 and MxN are recommended)|| YES ||
 ||Is this change expected to preserve answers in all possible model configurations?|| YES ||
 ||Is this change expected to preserve all diagnostics? [[BR]]!,,!''Preserving answers in model runs does not necessarily imply preserved diagnostics. !''|| YES ||