riversilikon.blogg.se - Program to calculate pi

Program to calculate pi download#

Able to compute Pi and other constants to trillions of digits.The main computational features of y-cruncher are: If you want to set a record yourself, the rules are in that link. See the complete list including other notably large computations. Does not qualify as a world record until verified using an alternate formula. Y-cruncher has been used to set a number of world record sized computations.

But this can be expensive to do for higher end systems since nearly all my hardware is out-of-pocket. Generally speaking, I try to max out a system's core-count and memory since that gives the best tuning results (and thus best performing binary). Looking forward, I do expect to do updates for Zen 4 (AVX512!) and possibly Sapphire Rapids HEDT - though the latter is questionable depending on pricing. So don't expect these binaries to be any faster on the old systems they were originally meant for. In these past 2 years of hiatus, I cleaned out my lab and retired a bunch of the older computers which were used to tune these binaries.

A lot of the old binaries (00-x86, 04-P4P, 05-A64, 08-NHM, 11-SNB, 11-BD1), have been either removed or retuned for newer processors.

I have yet to test if the latest TBB fixes the low CPU utilization issue from before.

Compilers and libraries have been updated 2 years to the latest.

Added some minor features and bug fixes for some new issues that arose on some very large computers.

(3-5% improvement) This improvement should translate to Alder Lake and Sapphire Rapids. This significantly bigger system has produced a binary that is noticeably faster than the old one.

The 18-CNL binary for Cannon Lake has gotten a facelift and is now retuned for an 8-core Tiger Lake laptop with 64GB of ram.

For benchmarking, you may want to try both and see which one is faster for your specific system. The Zen 3 tunings generated by the superoptimizer aren't strictly better than Zen 2's tunings.

A new binary for Zen 3: AMD graciously provided me a Zen3 system to do this, though the results are mixed.

While I'm not officially back to working on y-cruncher, I am giving it some much needed updates.

The project has been on hiatus for 2 years as I took a break for other things.

Program to calculate pi download#

If you are interested in the digits, you can download them from here. Like last time, it was run on the Google Cloud platform, but with newer and improved hardware for both compute and storage.įor more details check out Google's blog here. This computation took 158 days from October 14 to March 21. I'm glad to announce that Google has reclaimed the Pi world record by computing 100 trillion digits of Pi! 5 trillion digits - August 2010 (Shigeru Kondo).10 trillion digits - October 2011 (Shigeru Kondo).12.1 trillion digits - December 2013 (Shigeru Kondo).13.3 trillion digits - October 2014 (Sandon Van Ness "houkouonchi").22.4 trillion digits - November 2016 (Peter Trueb).31.4 trillion digits - January 2019 (Emma Haruka Iwao).50 trillion digits - January 2020 (Timothy Mullican).62.8 trillion digits - August 2021 (UAS Grisons).Y-cruncher has been used to set several world records for the most digits of Pi ever computed. Ever since its launch in 2009, it has become a common benchmarking and stress-testing application for overclockers and hardware enthusiasts. It is the first of its kind that is multi-threaded and scalable to multi-core systems. Y-cruncher is a program that can compute Pi and other constants to trillions of digits. The first scalable multi-threaded Pi-benchmark for multi-core systems.