NAME¶
papi_cost - papi_cost utility.
file cost.c
NAME¶
papi_cost - computes execution time costs for basic PAPI operations.
Synopsis¶
papi_cost [-dhs] [-b bins] [-t threshold]
Description¶
papi_cost is a PAPI utility program that computes the min / max / mean / std.
deviation of execution times for PAPI start/stop pairs and for PAPI reads.
This information provides the basic operating cost to a user's program for
collecting hardware counter data. Command line options control display
capabilities.
Options¶
- •
- -b < bins > Define the number of bins into which the results are
partitioned for display. The default is 100.
- •
- -d Display a graphical distribution of costs in a vertical histogram.
- •
- -h Display help information about this utility.
- •
- -s Show the number of iterations in each of the first 10 standard
deviations above the mean.
- •
- -t < threshold > Set the threshold for the number of iterations to
measure costs. The default is 100,000.
Bugs¶
There are no known bugs in this utility. If you find a bug, it should be
reported to the PAPI Mailing List at ptools-perfapi@ptools.org.