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Make appending a timestamp to rpointer files optional #343

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Mar 18, 2025
Merged

Make appending a timestamp to rpointer files optional #343

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29 changes: 20 additions & 9 deletions config_src/drivers/nuopc_cap/mom_cap.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,7 @@ module MOM_cap_mod
#endif
character(len=8) :: restart_mode = 'alarms'
character(len=16) :: inst_suffix = ''
logical :: pointer_date = .true. ! append date to rpointer
real(8) :: timere

contains
Expand Down Expand Up @@ -493,12 +494,20 @@ subroutine InitializeAdvertise(gcomp, importState, exportState, clock, rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ensemble_manager_init(inst_suffix)

write(timestamp,'(".",i4.4,"-",i2.2,"-",i2.2,"-",i5.5)'),year,month,day,hour*3600+minute*60+second
rpointer_filename = 'rpointer.ocn'//trim(inst_suffix)//timestamp
inquire(file=trim(rpointer_filename), exist=found)
! for backward compatibility
if (.not. found) then
rpointer_filename = 'rpointer.ocn'//trim(inst_suffix)
! Default to appending dates to the restart pointer unless otherwise specified in NUOPC settings
call NUOPC_CompAttributeGet(gcomp, name="restart_pointer_append_date", value=cvalue, &
isPresent=isPresent, isSet=isSet, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
if (isPresent .and. isSet) pointer_date = (trim(cvalue) .eq. ".true.")

rpointer_filename = 'rpointer.ocn'//trim(inst_suffix)
if (pointer_date) then
write(timestamp,'(".",i4.4,"-",i2.2,"-",i2.2,"-",i5.5)'),year,month,day,hour*3600+minute*60+second
inquire(file=trim(rpointer_filename//timestamp), exist=found)
! for backward compatibility
if (found) then
rpointer_filename = trim(rpointer_filename//timestamp)
endif
endif
#endif

Expand Down Expand Up @@ -655,14 +664,13 @@ subroutine InitializeAdvertise(gcomp, importState, exportState, clock, rc)
else if (runtype == "continue") then ! hybrid or branch or continuos runs

if (cesm_coupled) then
call ESMF_LogWrite('MOM_cap: restart requested, using rpointer.ocn', ESMF_LOGMSG_WARNING)
call ESMF_LogWrite('MOM_cap: restart requested, using '//trim(rpointer_filename), ESMF_LOGMSG_WARNING)
call ESMF_GridCompGet(gcomp, vm=vm, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return
call ESMF_VMGet(vm, localPet=localPet, rc=rc)
if (ChkErr(rc,__LINE__,u_FILE_u)) return

if (localPet == 0) then
! this hard coded for rpointer.ocn right now
open(newunit=readunit, file=rpointer_filename, form='formatted', status='old', iostat=iostat)
if (iostat /= 0) then
call ESMF_LogSetError(ESMF_RC_FILE_OPEN, msg=subname//' ERROR opening '//rpointer_filename, &
Expand Down Expand Up @@ -1916,7 +1924,10 @@ subroutine ModelAdvance(gcomp, rc)

write(timestamp,'(".",i4.4,"-",i2.2,"-",i2.2,"-",i5.5)'),year,month,day,hour*3600+minute*60+seconds

rpointer_filename = 'rpointer.ocn'//trim(inst_suffix)//timestamp
rpointer_filename = 'rpointer.ocn'//trim(inst_suffix)
if (pointer_date) then
rpointer_filename = trim(rpointer_filename//timestamp)
endif

write(restartname,'(A,".mom6.r",A)') &
trim(casename), timestamp
Expand Down