aksiksi / procsim

A 5-stage CPU pipeline simulator based on the well-known Tomasulo algorithm.

A Tomasulo Pipeline

This code was written for Project 2 of ECE6100 at Georgia Tech. It is written in C++11, which is supported by most modern compilers.

Building

Navigate to root directory, and run make.

Tested with:

• LLVM 7.3.0 on OS X 10.11.3
• Ubuntu
• Fedora

Running

After building, an executable called procsim will be in the root directory.

The program takes the following arguments:

• -f: number of instructions fetched per cycle
• -j: number of k0 function units (FUs)
• -k: number of k1 FUs
• -l: number of k2 FUs
• -r: number of result buses (RBs)
• -i: input trace file

Example: procsim -f 4 -j 3 -k 2 -l 1 -r 2 -i gcc.100k.trace

The output file will have the same name but with the extension .out and written to the same directory. In the example above, gcc.100k.trace.out.