parthsaraswat/branch-pred-fl

Branch Predictors

This is the code repository for my branch predictor functional level model project. The repository contains

• functional level models for a 2-bit saturating counter, a 1-level BHT which keeps track of local history, and a parametrized 2-level BHT which keeps track of local and global history
• Pin, Intel's just-in-time compiler used to instrument branches
• unit tests for all the functinal level models

Instructions

Setup

You can set up the project by running the setup script in the top directory by using the following command:

$ source pred-setup.sh

This script will set up environment variables, build demo programs and the pintools.

Using the Pintools to Instrument Branches

Once the setup script has been sourced, the pintools can be invoked by using the following command:

$ $PIN/pin -ifeellucky -t $PIN/source/tools/ManualExamples/obj-intel64/branch-tracker-demo.so -- <application-name>

where \<application-name\> is the name of the application you wish to instrument.

If you wish to rebuild the Pintools, use the following set of commands:

$ cd $PINTOOLS
$ make obj-intel64/branch-tracker-demo.so TARGET=intel64