Output run start/end/ranks

[klevzoff]

A tiny addition to standard GEOS output to make postprocessing of simulation logs easier.

[klevzoff]

The two CI jobs with GCC 10 that are failing are being hit by this (or similar) compiler bug that is fixed for GCC 11: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95353

{fmt} version 9.1 contains some workarounds for similar issues, any objections to trying to update to that and seeing if it helps?

If that doesn't work, can I add -Wno-stringop-overflow to CI compiler flags for those jobs? I know this is heavy artillery, but we are still safeguarded by having this warning enabled in other builds.

@TotoGaz @rrsettgast

[klevzoff]

The two CI jobs with GCC 10 that are failing are being hit by this (or similar) compiler bug that is fixed for GCC 11: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95353

{fmt} version 9.1 contains some workarounds for similar issues, any objections to trying to update to that and seeing if it helps?

If that doesn't work, can I add -Wno-stringop-overflow to CI compiler flags for those jobs? I know this is heavy artillery, but we are still safeguarded by having this warning enabled in other builds.

@TotoGaz @rrsettgast

This was not needed in the end, a simpler workaround was to add fmt includes as system includes on GEOS side to ignore warnings, as we do for some other TPLs. That said, I did test with fmt-9.1 and kept the necessary changes in this branch (they work with both old and new versions). I'm not gonna go through the trouble of updating TPLs at this time, but it should be very easy for someone else to do in the future.