Checkpoint only shows temperature/pressure from rank 0

[majosm]

While working on #257 today I noticed that the current checkpoint code only uses the temperature and pressure data from rank 0 when writing status information to stdout. This seems potentially misleading. Should it be doing reductions over the whole domain instead?

[MTCam]

Correct. The original code which collected field statistics across all ranks was removed in favor of using the discretization's built-in norms. It was my understanding that these norms would be extended on the inside to perform the parallel reductions.

This whole thing may be OBE after #96, as I think that facility may take over responsibility for doing runtime field data stats/reports.

[inducer]

Agree, #96 should take care of that. Since we don't need the same info reported twice, maybe we can make this issue about removing the old code?