SIGFPE Error with FCnudged/FCts2nudged on ne60 Grid

[Will Smith]

Hi all,

I’ve made an ne60 resolution grid along with corresponding regridded emissions files. When I run the FHIST compset, the simulation proceeds without any issues.
However, problems arise when switching to either the FCnudged or FCts2nudged compsets.

Specifically:
In the atm.log, I met
WARNING: Aerosol optical depth is unreasonably high in this layer.

Global flash freq (/s), lightning NOx (TgN/y) = 64.7218 3.1667
nstep, te 1 0.26465449463613272E+10 0.26465441521527233E+10 -0.88004999575046425E-04 0.98554996146832840E+05

Global flash freq (/s), lightning NOx (TgN/y) = 60.5466 2.9720
nstep, te 2 0.26465075462880054E+10 0.26465080117559061E+10 0.51577771571722811E-04 0.98554978042494782E+05

Global flash freq (/s), lightning NOx (TgN/y) = 59.1731 2.8874
nstep, te 3 0.26464720362472811E+10 0.26464719150626884E+10 -0.13428276533855868E-04 0.98554971003817060E+05

Global flash freq (/s), lightning NOx (TgN/y) = 59.3937 2.9061
nstep, te 4 0.26464260957317162E+10 0.26464275506454310E+10 0.16121682962757562E-03 0.98554909891966541E+05

Global flash freq (/s), lightning NOx (TgN/y) = 61.6853 3.0079
nstep, te 5 0.26463827785369320E+10 0.26463845501151471E+10 0.19630610140936445E-03 0.98554835535338600E+05
WARNING: Aerosol optical depth is unreasonably high in this layer.
dopaer( 15 , 18 , 1 , 21601 )= 1415.5392516390266
k= 18 pext= 2.7842043131347194 specext= 710.74439172949099
wetvol= 3.9173074674001594E-006 dryvol= 3.9173074674001594E-006 watervol= 0.0000000000000000
nspec= 10
l= 1 vol(l)= 3.9173072100562179E-006
isw= 1 specrefindex(isw)= (1.3669091134141786,0.15793007589329269)
specdens= 1770.0000000000000
l= 2 vol(l)= 3.0087795840798971E-014
isw= 1 specrefindex(isw)= (1.4430069931996061,5.71678446899932628E-003)
specdens= 1000.0000000000000
l= 3 vol(l)= 3.9927861265755867E-014
isw= 1 specrefindex(isw)= (1.4430069931996061,5.71678446899932628E-003)
specdens= 1000.0000000000000
l= 4 vol(l)= 2.5726088470884528E-014
isw= 1 specrefindex(isw)= (1.4430069931996061,5.71678446899932628E-003)

With DEBUG mode enabled, the cesm.log shows the following error:
Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

box_rearrange::compute_counts:: myrank= 129 : recv indices from 1913 count= 99
box_rearrange::compute_counts:: myrank= 129 : recv indices from 1914 count= 99
box_rearrange::compute_counts:: myrank= 129 : recv indices from 1915 count= 99
box_rearrange::compute_counts:: myrank= 129 : recv indices from 1916 count= 99
box_rearrange::compute_counts:: myrank= 129 : recv indices from 1917 count= 99
box_rearrange::compute_counts:: myrank= 129 : recv indices from 1918 count= 99
box_rearrange::compute_counts:: myrank= 129 : recv indices from 1919 count= 99

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

Backtrace for this error:

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

Backtrace for this error:

Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

I’ve attached the relevant log files for the successful FHIST run for reference. Unfortunately, the log files from the failed runs are too large to upload.

Any insights would be greatly appreciated.

Best regards,
Will

 

[rrbuchholz]

Hello Will,

I'm thinking it could be a potential issue with cloud representation.

Which reanalysis are you nudging to? Did you regrid the reanalysis to the ne60 grid space?

Best,
Rebecca