Standard error and standard out

Overview

Teaching: 0 min
Exercises: 0 min

Questions

• What do the stderr and stdout files tell me?

Objectives

Standard error and standard out files

In your CASEROOT directory, your model produced files like b.day1.0.run.o* and b.day1.0.st_archive.o*. These files produce output related to our submit script. If the model and/or archiving did not run to completion, you will also have a b.day1.0.run.e* and/or b.day1.0.st_archive.e* file. The ones with *.o*' are called standard out (stdout) and the ones with .e` are called standard error (stderr).

The end of the file usually contains the most useful information, so you can use the Unix tail command to look at the end of the file:

$ tail b.day1.0.run.o4141153

 - Case input data directory (DIN_LOC_ROOT) is /glade/p/cesmdata/cseg/inputdata
 - Checking for required input datasets in DIN_LOC_ROOT
-------------------------------------------------------------------------
2020-09-15 11:21:22 MODEL EXECUTION BEGINS HERE
run command is mpiexec_mpt -p "%g:"  -np 576  omplace -tm open64  /glade/scratch/kpegion/b.day1.0/bld/cesm.exe  >> cesm.log.$LID 2>&1
2020-09-15 11:23:58 MODEL EXECUTION HAS FINISHED
check for resubmit
dout_s True
mach cheyenne
resubmit_num 0

Troubleshooting

Does anyone have a stdout file that does not indicate MODEL EXECUTION HAS FINISHED

Key Points