y-cruncher v0.7.8 Build 9507 ( www.numberworld.org )
Copyright 2008-2020 Alexander J. Yee ( a-yee@u.northwestern.edu )
Distribute Freely – Please report any bugs.
Tuning: Windows/19-ZN2 ~ Kagari – Zen 2 Matisse (x64 ADX)
0 Benchmark Pi (all in ram)
1 Component Stress Tester
2 Run I/O Performance Analysis
3 Custom Compute a Constant
– Compute other constants (e, Golden Ratio, etc…)
– Choose your own settings (use disk for large computations)
4 BBP Digit Extractor for Pi
5 Digit Viewer
6 Advanced Options
7 About
Enter your choice:
option: 0
Benchmark Pi:
Select a Benchmark Type:
0 Single-Threaded
1 Multi-Threaded
option: 1
Available Memory: 123 GiB
Option Decimal Digits Approx. Memory Needed
1 25,000,000 2.96 GiB
2 50,000,000 2.99 GiB
3 100,000,000 3.13 GiB
4 250,000,000 3.52 GiB
5 500,000,000 4.25 GiB
6 1,000,000,000 5.91 GiB
7 2,500,000,000 12.5 GiB
8 5,000,000,000 23.5 GiB
9 10,000,000,000 46.0 GiB
10 25,000,000,000 116 GiB
11 50,000,000,000 230 GiB
12 100,000,000,000 459 GiB
13 250,000,000,000 1.12 TiB
14 500,000,000,000 2.24 TiB
15 1,000,000,000,000 4.49 TiB
16 2,500,000,000,000 11.3 TiB
0 I prefer SuperPi sizes… (1M, 2M, 4M…)
option: 10
Unable to acquire the permission, “SeLockMemoryPrivilege”.
Large pages and page locking may not be possible.
Expect larger performance penalties from Meltdown mitigation.
Constant: Pi
Algorithm: Chudnovsky (1988)
Decimal Digits: 25,000,000,000
Hexadecimal Digits: Disabled
Computation Mode: Ram Only
Multi-Threading: Cilk Plus Work-Stealing -> 128 / 128
Start Time: Mon Apr 26 12:37:17 2021
Working Memory… 116 GiB (locked, spread: 100%/1)
Twiddle Tables… 292 MiB (locked, spread: 100%/1)
Begin Computation:
Series CommonP2B3… 1,762,841,746 terms (Expansion Factor = 2.995)
Time: 331.075 seconds ( 5.518 minutes )
Large Division…
Iterating: 0 O1M ( 6,250,000,0 Time: 13.736 seconds ( 0.229 minutes )
InvSqrt(10005)…
Time: 9.187 seconds ( 0.153 minutes )
Large Multiply…
Time: 5.669 seconds ( 0.094 minutes )
Pi: 359.677 seconds ( 5.995 minutes )
Base Converting:
Time: 24.305 seconds ( 0.405 minutes )
Writing Decimal Digits:
Time: 3.929 seconds ( 0.065 minutes )
Start Time: Mon Apr 26 12:37:17 2021
End Time: Mon Apr 26 12:44:57 2021
Total Computation Time: 383.986 seconds ( 6.400 minutes )
Start-to-End Wall Time: 459.478 seconds ( 7.658 minutes )
CPU Utilization: 11652.90 % + 192.05 % kernel overhead
Multi-core Efficiency: 91.04 % + 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 Ryzen Threadripper PRO 3995WX 64-Cores
Topology: 128 threads / 64 cores / 1 socket / 2 NUMA nodes
Physical Memory: 137,438,953,472 ( 128 GiB)
CPU Base Frequency: 2,694,965,472 Hz
参考サイト