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y-cruncher – A Multi-Threaded Pi-Program From a high-school project that went a little too far… By Alexander J. Yee (Last updated: January 29, 2017) The first scalable multi-threaded Pi-benchmark for multi-core systems… How fast can your computer compute Pi? -cruncher is a program that can compute Pi and other constants to trillions of digits. It is the first of its kind that is multi-threaded and scalable to multi-core systems. Ever since its launch in 2009, it has become a common benchmarking and stress-testing application for overclockers and hardware enthusiasts. -cruncher has been used to set several world records for the most digits of Pi ever computed. 22.4 trillion digits – November 2016 (Peter Trueb) 13.3 trillion digits – October 2014 ("houkouonchi") 12.1 trillion digits – December 2013 (Shigeru Kondo) 10 trillion digits – October 2011 (Shigeru Kondo) 5 trillion digits – August 2010 (Shigeru Kondo) ProgrammerHumor.i Shortcuts: Numberworld Home Records Set by y-cruncher Download y-cruncher redires Known Issues Benchmarks Fastest Times Algorithms FAQ Links Contact Me