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 Jun 5 05:15:42 2021
Working Memory… 46.5 GiB (locked, spread: 99%/2)
Twiddle Tables… 286 MiB (locked, spread: 100%/2)
Begin Computation:
Series CommonP2B3… 705,136,706 terms (Expansion Factor = 2.911)
Time: 90.774 seconds ( 1.513 minutes )
Large Division…
Time: 4.732 seconds ( 0.079 minutes )
InvSqrt(10005)…
Time: 3.135 seconds ( 0.052 minutes )
Large Multiply…
Time: 1.750 seconds ( 0.029 minutes )
Pi: 100.399 seconds ( 1.673 minutes )
Base Converting:
Time: 6.552 seconds ( 0.109 minutes )
Writing Decimal Digits:
Time: 2.594 seconds ( 0.043 minutes )
Start Time: Sat Jun 5 05:15:42 2021
End Time: Sat Jun 5 05:18:32 2021
Total Computation Time: 106.953 seconds ( 1.783 minutes )
Start-to-End Wall Time: 170.345 seconds ( 2.839 minutes )
CPU Utilization: 22261.94 % + 700.75 % kernel overhead
Multi-core Efficiency: 86.96 % + 2.74 % 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 7742 64-Core Processor
Topology: 256 threads / 128 cores / 2 sockets / 4 NUMA nodes
Physical Memory: 412,316,860,416 ( 384 GiB)
CPU Base Frequency: 2,250,015,472 Hz
Validation File: Pi – 20210605-051905.txt
C:\Users\w10\Desktop\y-cruncher v0.7.8.9507>
Pi: 100.399 seconds ( 1.673 minutes )
7742 x2 pi 100億桁 100.399 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