NAME

papi_cost - computes execution time costs for basic PAPI operations.

CONTENTS

Synopsis
Description
Options
Bugs
See Also

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>.

SEE ALSO

PAPI (3), papi_avail (1), papi_clockres (1), papi_command_line (1), papi_decode (1), papi_event_chooser (1), papi_mem_info (1), papi_native_avail (1)


PAPI_COST (1) May, 2005

  Innovative Computing Laboratory
2001 R&D Winner  
Contact PAPI: papi@cs.utk.edu Computer Science Department
  University of Tennessee