<Tr> <Td> 24 November 2002 </Td> <Td> Yasumasa Kanada & 9 man team </Td> <Td> HITACHI SR8000 / MPP (64 nodes), Department of Information Science at the University of Tokyo in Tokyo, Japan </Td> <Td> 600 hours </Td> <Td> 1,241,100,000,000 </Td> </Tr> <Tr> <Td> 29 April 2009 </Td> <Td> Daisuke Takahashi et al . </Td> <Td> T2K Open Supercomputer (640 nodes), single node speed is 147.2 gigaflops, computer memory is 13.5 terabytes, Gauss--Legendre algorithm, Center for Computational Sciences at the University of Tsukuba in Tsukuba, Japan </Td> <Td> 29.09 hours </Td> <Td> 2,576,980,377,524 </Td> </Tr> <Table> <Tr> <Th> Date </Th> <Th> Who </Th> <Th> Implementation </Th> <Th> Time </Th> <Th> Decimal places (world records in bold) </Th> </Tr> <Tr> <Td_colspan="5"> All records from Dec 2009 onwards are calculated and verified on servers and / or home computers with commercially available parts . </Td> </Tr> <Tr> <Td> 31 December 2009 </Td> <Td> Fabrice Bellard </Td> <Td> <Ul> <Li> Core i7 CPU at 2.93 GHz </Li> <Li> 6 GiB (1) of RAM </Li> <Li> 7.5 TB of disk storage using five 1.5 TB hard disks (Seagate Barracuda 7200.11 model) </Li> <Li> 64 bit Red Hat Fedora 10 distribution </Li> <Li> Computation of the binary digits: 103 days </Li> <Li> Verification of the binary digits: 13 days </Li> <Li> Conversion to base 10: 12 days </Li> <Li> Verification of the conversion: 3 days </Li> <Li> Verification of the binary digits used a network of 9 Desktop PCs during 34 hours, Chudnovsky algorithm, see for Bellard's homepage . </Li> </Ul> </Td> <Td> 131 days </Td> <Td> 2,699,999,990,000 </Td> </Tr> <Tr> <Td> 2 August 2010 </Td> <Td> Shigeru Kondo </Td> <Td> <Ul> <Li> using y - cruncher by Alexander Yee </Li> <Li> the Chudnovsky algorithm was used for main computation </Li> <Li> verification used the Bellard & Plouffe formulas on different computers, both computed 32 hexadecimal digits ending with the 4,152,410,118,610 th . </Li> <Li> with 2 x Intel Xeon X5680 @ 3.33 GHz--(12 physical cores, 24 hyperthreaded) </Li> <Li> 96 GB DDR3 @ 1066 MHz--(12 × 8 GB--6 channels)--Samsung (M393B1K70BH1) </Li> <Li> 1 TB SATA II (Boot drive)--Hitachi (HDS721010CLA332), 3 × 2 TB SATA II (Store Pi Output)--Seagate (ST32000542AS) 16 x 2 TB SATA II (Computation)--Seagate (ST32000641AS) </Li> <Li> Windows Server 2008 R2 Enterprise x64 </Li> <Li> Computation of binary digits: 80 days </Li> <Li> Conversion to base 10: 8.2 days </Li> <Li> Verification of the conversion: 45.6 hours </Li> <Li> Verification of the binary digits: 64 hours (primary), 66 hours (secondary) </Li> <Li> Verification of the binary digits were done simultaneously on two separate computers during the main computation . </Li> </Ul> </Td> <Td> 90 days </Td> <Td> 5,000,000,000,000 </Td> </Tr> <Tr> <Td> 17 October 2011 </Td> <Td> Shigeru Kondo </Td> <Td> <Ul> <Li> using y - cruncher by Alexander Yee </Li> <Li> Verification: 1.86 days and 4.94 days </Li> </Ul> </Td> <Td> 371 days </Td> <Td> 10,000,000,000,050 </Td> </Tr> <Tr> <Td> 28 December 2013 </Td> <Td> Shigeru Kondo </Td> <Td> <Ul> <Li> using y - cruncher by Alexander Yee </Li> <Li> with 2 x Intel Xeon E5 - 2690 @ 2.9 GHz--(16 physical cores, 32 hyperthreaded) </Li> <Li> 128 GB DDR3 @ 1600 MHz--8 x 16 GB--8 channels </Li> <Li> Windows Server 2012 x64 </Li> <Li> Verification: 46 hours </Li> </Ul> </Td> <Td> 94 days </Td> <Td> 12,100,000,000,050 </Td> </Tr> <Tr> <Td> 8 October 2014 </Td> <Td> Sandon Nash Van Ness "houkouonchi" </Td> <Td> <Ul> <Li> using y - cruncher by Alexander Yee </Li> <Li> with 2 x Xeon E5 - 4650L @ 2.6 GHz </Li> <Li> 192 GB DDR3 @ 1333 MHz </Li> <Li> 24 x 4 TB + 30 x 3 TB </Li> <Li> Verification: 182 hours </Li> </Ul> </Td> <Td> 208 days </Td> <Td> 13,300,000,000,000 </Td> </Tr> <Tr> <Td> 11 November 2016 </Td> <Td> Peter Trueb </Td> <Td> <Ul> <Li> using y - cruncher by Alexander Yee </Li> <Li> with 4 x Xeon E7 - 8890 v3 @ 2.50 GHz (72 cores, 144 threads) </Li> <Li> 1.25 TB DDR4 </Li> <Li> 20 x 6 TB </Li> <Li> Verification: 28 hours </Li> </Ul> </Td> <Td> 105 days </Td> <Td> 22,459,157,718,361 </Td> </Tr> </Table> <Tr> <Th> Date </Th> <Th> Who </Th> <Th> Implementation </Th> <Th> Time </Th> <Th> Decimal places (world records in bold) </Th> </Tr>

Who has calculated the most digits of pi