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: 9
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: 10,000,000,000
Hexadecimal Digits: Disabled
Computation Mode: Ram Only
Multi-Threading: Cilk Plus Work-Stealing -> 128 / 128
Start Time: Mon Apr 26 11:40:20 2021
Working Memory… 45.7 GiB (locked, spread: 100%/1)
Twiddle Tables… 286 MiB (locked, spread: 100%/1)
Begin Computation:
Series CommonP2B3… 705,136,706 terms (Expansion Factor = 2.911)
Time: 119.371 seconds ( 1.990 minutes )
Large Division…
Time: 5.952 seconds ( 0.099 minutes )
InvSqrt(10005)…
Time: 4.077 seconds ( 0.068 minutes )
Large Multiply…
Time: 2.546 seconds ( 0.042 minutes )
Pi: 131.951 seconds ( 2.199 minutes )
Base Converting:
Time: 9.042 seconds ( 0.151 minutes )
Writing Decimal Digits:
Time: 1.784 seconds ( 0.030 minutes )
Start Time: Mon Apr 26 11:40:20 2021
End Time: Mon Apr 26 11:43:09 2021
Total Computation Time: 140.995 seconds ( 2.350 minutes )
Start-to-End Wall Time: 169.029 seconds ( 2.817 minutes )
CPU Utilization: 11250.66 % + 316.11 % kernel overhead
Multi-core Efficiency: 87.90 % + 2.47 % 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 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: 2,694,957,264 Hz
Validation File: Pi – 20210426-114330.txt
AMD Ryzen Threadripper PRO 3995WX 64-Cores Windows10 Pro RTX2080Ti CUDA 11.3 100億桁 Pi 131.951 seconds ( 2.199 minutes )
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