gcc -O3 -fomit-frame-pointer -funroll-loops
gcc -O -fomit-frame-pointer
gcc -fomit-frame-pointer
spu-gcc -mstdmain -march=cell -O3 -funroll-loops -fomit-frame-pointer -Drandom=rand -Dsrandom=srand
spu-gcc -mstdmain -march=cell -O -fomit-frame-pointer -Drandom=rand -Dsrandom=srand
