improve the efficiency of parallel restart handling in MOM6#637

minghangli-uni merged 2 commits intodev-MC_25km_jra_ryfACCESS-NRI/access-om3-configs:dev-MC_25km_jra_ryffrom

592-parallel-restartACCESS-NRI/access-om3-configs:592-parallel-restartCopy head branch name to clipboard