Changes between Version 13 and Version 14 of Documentation/UserGuide/restartability
- Timestamp:
- 2020-02-28T15:46:59+01:00 (4 years ago)
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Documentation/UserGuide/restartability
v13 v14 45 45 - False - only write, if there is differences in a variable, its first occurrence of such differences to the file: first_diff.txt. 46 46 47 For global simulation the True option can produce a large file and the information might be hard to process, if there are many differences between the compared restart files. In addition, the True option makes the script much slower. However, for small simulation the true option is very useful.47 For global simulation, the True option can produce a large file and the information might be hard to process, if there are many differences between the compared restart files. In addition, the True option makes the script much slower. However, for small simulation the True option is very useful. 48 48 49 49 I recommend that you use the re-ordered files from the difffer100.sh script as inputs to nccmp. … … 52 52 - If possible limit the spatial scale (to maximize speed). 53 53 - Track down the onset of the deviation between the restart files. 54 - Track down the problem. Hopefully, the differences in the restarts files will give you a clue on which variable to start the investigation from. The best approach depend on the source of the problem (memory issue or lack variablein the restart file etc.). For memory issue a debugger could be the best choice. For lack of variables in restart file it is best to run two identical runs with different period lenghts – either manually or by Totalview while tracking down which variables are causing the differences.54 - Track down the problem. Hopefully, the differences in the restarts files will give you a clue on which variable to start the investigation from. The best approach depend on the source of the problem (memory issue or lack of variables in the restart file etc.). For memory issue a debugger could be the best choice. For lack of variables in restart file it is best to run two identical runs with different period lenghts – either manually or by Totalview while tracking down which variables are causing the differences. 55 55 - Once you have fixed the problem, verify that it is also valid at the global scale (i.e. run the global tests again, if you chose to zoom in on a smaller region)