darshan-job-summary.pl should do a better job of reporting errors. this log file (/intrepid-fs0/logs/darshan/2010/10/1/mmin_nekcem_id314635_10-1-13849_4.darshan.gz) has a lot of records. the perl script generates the variance table, but that table contains 16954 lines.

the perl script runs pdflatex (twice) but does not check for errors. Ok, so you call it with -halt-on-error but if there is an eror, the subsequent move of the output file fails, and fails in a very cryptic way.

suggested fix: either check the exit status of the final pdflatex or check for the existence of the summary.pdf file. in case of error, at least dump the latex.output2 file. since darshan deletes the temp dir, there's no record of what went wrong.