These are the only files you should modify:

makefile	// enter your andrew id, adjust the matrix
		// size for debugging

mxm.c		// your optimized matrix multiply routines

Other files:

cacheann	//
cacheprof*	// cache simulator
cachesim.o	//

defs.h		// defines the performance metrics and other stuff
driver.c	// driver application
mxm.h		// header file for cache-optimized matrix multiply
