Y-cruncher

Screenshot of y-cruncher after a calculation of Golden ratio
Pi can be calculated with any number of digits – for larger calculations, a lot of RAM is necessary. In this case, 25 billion digits of Pi are calculated in 10.4 minutes.

y-cruncher is a computer program for the calculation of some mathematical constant with theoretical accuracy limited only by computing time and available storage space. It was originally developed to calculate the Euler-Mascheroni constant γ; the y is derived from it in the name.

Since 2010, y-cruncher has been used for all record calculations of the number pi and other constants.

The software is downloadable from the website of the developers for Microsoft Windows and Linux. It does not have a graphical interface, but works on the command line. Calculation options are selected or entered via the text menu, the results are saved as a file.

Some popular uses of y-cruncher are running hardware benchmarks to measure performance of computer system. An example of such benchmark is HWBOT. y-cruncher can also be used for stress-tests, as performed computations are sensitive to RAM errors and the program can automatically detect such errors.

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