User Guide

Contents

cachesim

Enable cache simulation for Performance Modeling.

Syntax

--cachesim
--no-cachesim
Default
On (cachesim)
Actions Modified
collect
=projection
Usage
Cache simulation data might be unavailable for some loops. Performance Modeling result may be incorrect. Use this option to enable the cache simulation data for the Performance Modeling.
Make sure to use the
--enable-cache-simulation
and
--cache-config
command line arguments when collection Trip Counts data to improve projection accuracy.
Example
  1. Run Survey Analysis.
  2. Run Trip Counts and FLOP analyses of the Characterization stage with cache simulation for a specific cache configuration.
  3. Model your application performance and explicitly enable cache simulation .
$ advisor --collect=survey --static-instruction-mix --project-dir=./advi_results -- ./myApplication
$ advisor --collect=tripcounts --flop --enable-cache-simulation --cache-config=4:8w:32k:64l/4:4w:256k:64l/1:16w:6m:64l --project-dir=./advi_results -- ./myApplication
$ advisor --collect=projection --cachesim --project-dir=./advi_results

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.