Debugging options on ARCHER compiler

[ee10hp]

Hi,

Thanks for your help.
I'm running a v7.3 um-ukca job on ARCHER with meteorological nudging. For now I have a short 2-day job (xmnig) set up for debugging.

I have encountered a clean model failure in UKCA_INTERP, which is related to the UM pressures becoming NaNs?. My supervisor and I have traced this back to a particular dynamical timestep in which the abs_norm values become NaN and then the meteorological nudging increments become NaN.

I would like to turn on some of the debugging options in ARCHER as I hope this will give me some more information. I have been advised that the relevant options on Monsoon CRAY would be called by adding:

bld::tool::fflags::UM::atmosphere::UKCA::  -O0 -Ovector0 -hfp0 -hflex_mp=intolerant -e CID
bld::tool::fflags::UM::atmosphere::dynamics_solver::  -O0 -Ovector0 -hfp0 -hflex_mp=intolerant -e CID

to a txt file and switching on in umui > Compilation and Mod > UM user override Files > user file overrides.

However, my job xmnig with this turned on is failing to compile (it compiles fine without). I suspect I have some of the syntax wrong for compilation on ARCHER.

Please can you advise on how to set up this debugging on ARCHER?

My text file with debug statements is: /home/ee10hp/overrides/archer_cce_debug_7.3_user

The job id is xmnig and the error in the comp.leave file is:

      Use swapable_field_mod, Only: &
          ^
ftn-1494 crayftn: CAUTION PE_HELMHOLTZ_EUL, File = ../../../../../../../../home2/n02/n02/ee10hp/um/xmnig/ummodel/ppsrc/UM/atmosphere/dynamics_solver/pe_helmholtz_eul-pehelmeu2a.f90, Line = 94, Column = 11
  Module or submodule "SWAPABLE_FIELD_MOD" and this compilation should both be compiled with the "-s integer64" option.

      fields_to_swap(i_field) % field        => HM_Czz(:,:,:)

/home/n02/n02/ee10hp/output/xmnig000.xmnig.d16070.t133304.comp.leave

Many thanks for your help,
Hana

[ros]

Hi Hana,

You also need the base compile options in order to set integer and real sizes, pick up GCOM etc. -hflex_mp=intolerant is already set by default.

Try the following and see if that gives you the compile options you are after:

bld::tool::fflags::UM::atmosphere::UKCA:: %fflags64_mpp -O0 -Ovector0 -hfp0 -e CID
bld::tool::fflags::UM::atmosphere::dynamics_solver:: %fflags64_mpp -O0 -Ovector0 -hfp0 -e CID

Regards,
Ros.

[ros]

I'm now closing this ticket due to inactivity. Please re-open if you require further help with this.

Regards,
Ros.