Lecture 22

Learning objectives

After this class, you should be able to:

1. Give source code or executable, identify likely causes of sub-optimal performance by looking at the assembly version of that code.

Reading assignment

1. GAS tutorial on Blackboard, under the 'course library' tab.
2. Chapter 3 of 'Computer Systems' on Blackboard, under the 'course library' tab.

Exercises and review questions

• Exercises and review questions on current lecture's material

  1. Idenitfy the reasons for your assignment 1 matrix multiplication performance being lower than that of BLAS (see Lec13/MMBLAS.s) by looking at the assembly codes.

• Preparation for the next lecture
  1. None. Work on optimizing the code for your group project.

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Last modified: 16 Apr 2010