Constant: Pi
Algorithm: Chudnovsky (1988)
Decimal Digits: 10,000,000,000
Hexadecimal Digits: Disabled
Computation Mode: Ram Only
Multi-Threading: Cilk Plus Work-Stealing -> 256 / 256
Start Time: Sat May 29 13:57:56 2021
Working Memory… 46.5 GiB (locked, spread: 99%/8)
Twiddle Tables… 286 MiB (locked, spread: 99%/8)
Begin Computation:
Series CommonP2B3… 705,136,706 terms (Expansion Factor = 2.911)
Time: 83.668 seconds ( 1.394 minutes )
Large Division…
Time: 4.243 seconds ( 0.071 minutes )
InvSqrt(10005)…
Time: 3.013 seconds ( 0.050 minutes )
Large Multiply…
Time: 1.577 seconds ( 0.026 minutes )
Pi: 92.509 seconds ( 1.542 minutes )
Base Converting:
Time: 5.976 seconds ( 0.100 minutes )
Writing Decimal Digits:
Time: 2.721 seconds ( 0.045 minutes )
Start Time: Sat May 29 13:57:56 2021
End Time: Sat May 29 14:01:12 2021
Total Computation Time: 98.486 seconds ( 1.641 minutes )
Start-to-End Wall Time: 196.162 seconds ( 3.269 minutes )
CPU Utilization: 22338.89 % + 838.93 % kernel overhead
Multi-core Efficiency: 87.26 % + 3.28 % kernel overhead
Last Decimal Digits: Pi
9763261541 1423749758 2083180752 2573977719 9605119144 : 9,999,999,950
9403994581 8580686529 2375008092 3106244131 4758821220 : 10,000,000,000
Spot Check: Good through 10,000,000,000
Version: 0.7.8.9507 (Windows/19-ZN2 ~ Kagari)
Processor(s): AMD EPYC 7763 64-Core Processor
Topology: 256 threads / 128 cores / 2 sockets / 8 NUMA nodes
Physical Memory: 274,877,906,944 ( 256 GiB)
CPU Base Frequency: 2,450,019,216 Hz
Validation File: Pi – 20210529-140137.txt
C:\Users\w10\Desktop\y-cruncher v0.7.8.9507>
Pi: 92.509 seconds ( 1.542 minutes )
AMD EPYC 7763ｘ２ pi 100億 92.509 sec
←小さいほど高性能
円周率Piの100億桁でのBenchmark(seconds)
参考サイト