pl-mpi-gdtime(1) OpenBSD Reference Manual pl-mpi-gdtime(1) NAME pl-mpi-gdtime - pl-mpi run-time trace graph generator SYNOPSIS pl-mpi-gdtime [-q] [-g gnuplot] [-f output] [-c curve] [-t threshold] file ... DESCRIPTION THe pl-mpi-gdtime utility processes files produced by pl-mpi(1) or pl-mpi-test(1) with the -t switch. It produces graphs illustrating dis- tributing efficiency over the domain of processing time. The options are as follows: -q Do not generate a graph on the X11 terminal. -c curve Specify the curve interval divisor for average/median charting. Higher values have greater specificity. -t threshold Specify the cut-off point for y-axis peaks (for absolute measurements). This is useful to control the outputted graph's range when dealing with invalid data points (hap- pens often with microsecond timing). -g gnuplot Specify an alternate location of gnuplot(1), defaulting to ``gnuplot''. -f output Produce a copy of the graph to the file specified in output. The pl-mpi-gdtime utility accepts as arguments trace files generated by pl-mpi(1) and pl-mpi-test(1), which are in the format of dump-rank.txt, where ``rank'' is the MPI rank of the generating node. AUTHORS The pl-mpi-gdtime utility was developed at the University of Latvia's IM- CS by Kristaps Dzonsons <kristaps.dzonsons@latnet.lv>. SEE ALSO pl-mpi(1), pl-mpi-test(1), pl-mpi-dtime(1). OpenBSD 4.0 December 22, 2006 1