Constant: Pi
Algorithm: Chudnovsky (1988)
Decimal Digits: 25,000,000,000
Hexadecimal Digits: Disabled
Computation Mode: Ram Only
Multi-Threading: Cilk Plus Work-Stealing -> 256 / 256
Start Time: Mon May 3 17:29:40 2021
Working Memory… 116 GiB (locked, spread: 99%/2)
Twiddle Tables… 292 MiB (locked, spread: 100%/2)
Begin Computation:
Series CommonP2B3… 1,762,841,746 terms (Expansion Factor = 2.995)
Time: 243.498 seconds ( 4.058 minutes )
Large Division…
Time: 10.789 seconds ( 0.180 minutes )
InvSqrt(10005)…
Time: 7.514 seconds ( 0.125 minutes )
Large Multiply…
Time: 4.100 seconds ( 0.068 minutes )
Pi: 265.909 seconds ( 4.432 minutes )
Base Converting:
Time: 18.383 seconds ( 0.306 minutes )
Writing Decimal Digits:
Time: 6.505 seconds ( 0.108 minutes )
Start Time: Mon May 3 17:29:40 2021
End Time: Mon May 3 17:36:56 2021
Total Computation Time: 284.294 seconds ( 4.738 minutes )
Start-to-End Wall Time: 435.860 seconds ( 7.264 minutes )
CPU Utilization: 22824.66 % + 383.62 % kernel overhead
Multi-core Efficiency: 89.16 % + 1.50 % kernel overhead
Last Decimal Digits: Pi
2448547079 5329693979 7145627081 9204187454 9483487803 : 24,999,999,950
1309759846 5364560010 7388984278 8403481193 9913806533 : 25,000,000,000
Spot Check: Good through 25,000,000,000
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: 549,755,813,888 ( 512 GiB)
CPU Base Frequency: 2,250,038,160 Hz
Validation File: Pi – 20210503-173810.txt
C:\Users\w10\Desktop\y-cruncher v0.7.8.9507>
amd epyc 7742 x2 win10 pro pi 250憶桁 benchmark 265.909 sec