eldo_user

Running Eldo
Statistics File
Statistics File
The statistics output file from Eldo can be useful to understand how a design behaves and to
monitor node/device activity. It can help to monitor the simulation performance, determine
circuit size impact on simulation, debug simulation slowdown, and determine which nodes and
blocks should be treated for minimizing rejections.
Statistics File Generation
The statistics file can be generated by launching Eldo with the -stat argument.
-stat [-statfile filename [-statfsize val]]
-statfile filename [-statfsize val]
By default, the output file is named:
__.stat
where cir_filename is the name of the .cir netlist file to be simulated. For example, if you
execute the following Eldo command on March 24 2011 at 9.23am, a statistics file named
extract_overshoot_opamp_20110324_092325.stat will be generated:
eldo extract_overshoot_opamp.cir -stat
To specify a different filename, use the -statfile argument, for example, the following will
generate a statistics file named extract_overshoot_opamp.stat:
eldo extract_overshoot_opamp.cir -stat -statfile
extract_overshoot_opamp.stat
When -statfile is specified, -stat is optional.
The output file is generated in the directory where Eldo was launched. Specify the -outpath
argument to generate the statistics file in a different location.
Note
If a .ALTER command is specified in the netlist and a statistics file is requested, a single
statistics file is created for all the alter runs.
Statistics File Maximum Size
By default, a single statistics file is set to a maximum size of 50 MB. You can specify a different
maximum value using the -statfsize command line argument. If the maximum size is reached, a
new statistics file is created and a message appears in the transcript. The names of these files are
of the format:
__.
Eldo® User's Manual, 15.3 57