This is a simple benchmark created while studying different ways of optimization for x86 and e2k architechtures. It features the main loop of a program evaluating noise properties of a quantum interferometer employing a cascade of GHZ states.
Results for various CPUs are shown here.
Build
make
Run
./ghz-bench
Alternatively, one can compile as follows
clang -Ofast -march=native ghz-bench.c -o ghz-bench.
In some cases, it might be beneficial to point out a target architechture explicetly, e.g., -march=icelake-server. It is known that gcc does not generate efficent binary with this code, so clang is recommended on x86.
This program was created by Vutshi and a friend.