Emma Haruka Iwao broke her own record from three years ago for the number of digits of pi calculated. She was able to calculate pi to the hundred trillionth digit, or zero, using the same Google Cloud y-cruncher tool.
Google Cloud Developer Advocate Emma Haruka Iwao has surpassed her three-year-old personal best for the number of digits calculated for pi. Using the same Google Cloud y-cruncher program, Iwao was able to calculate pi up to its 31.4 trillionth digit in 2019, and she has now found pi up to its 100 trillionth digit, which is zero.
The process, which began in October 2021, required computers until March 2022 to complete. At 157 days, it took more than twice as long to calculate a lower number, compared to 121 days in 2019. Iwao claims to have used the same tools and techniques as before, but the higher speed is attributable to the way Google Cloud has evolved since then, with a 100 Gbps network, balanced persistent disks, and other features noted in this in-depth math review.
Another major feature is the massive amounts of data that must be processed in order to calculate numbers this far in advance. During the first record calculation, the computers processed about 19,000 TB (terabytes) of data, according to the blog post. This time, the system processed around 82,000 TB of data to calculate 100 trillion digits.
The blog post also features humorous facts to illustrate the magnitude of a hundred trillion in human terms. According to some sources, 100 trillion inches of pastry would extend 3,304 times from Earth to the Moon. If you want to check out the source code or download the hundred trillion digits, you can do it right here.
Despite the faster processing speed, the announcement came after 2022’s Pi Day. arrives just in time.