lfric2lfric: run with multiple CPUs #192
Description
Are there any linked Issues or Pull Requests?
No response
Brief description
At the moment, lfric2lfric can run in serial. When using more than one CPU, the application crashes because ranks other than zero do not read properly the partitioning for the source and the destination meshes. It is probably necessary to run lfric2lfric with more than one CPU when processing large meshes, both for memory and walltime limitations.
Further details of the issue.
The problem was traced to the fact that the partitioning namelist was using an enumeration to identify the instance key member, which LFRic is not prepared to do. Substituting the enumeration by a simple string would solve the problem. In the metadata the accepted values of the instance key member can still be set.