Apparently due to IBM limit on length of script variable, when I try to configure case with more than ~264 processes, I get an error at the "configure -mach seaborg" stage when the script tries to create the run script (call to taskmaker.pl from batch.ibm.seaborg from generate_batch.csh.). I believe the issue is the length of the task_geometry line. I was trying to create a 472-process case. This error occurred both on seaborg and LLNL frost. I got around it by configuring a case with fewer processes and then changing both the env_mach.seaborg file and the seaborg.cache file in .cache.
