Talk:Ulam numbers: Difference between revisions
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m (→timings for the Nth Ulam number: added some specifications for a PC.) |
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(The above, as measured and timed on Paul Kislanko's 10-core PC. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 21:38, 4 December 2020 (UTC) |
(The above, as measured and timed on Paul Kislanko's <strike>10-core</strike> 8-core PC. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 21:38, 4 December 2020 (UTC) |
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:what, pray tell, is "Paul Kislanko's 10-core PC"? --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 01:12, 5 December 2020 (UTC) |
:what, pray tell, is "Paul Kislanko's 10-core PC"? --[[User:Petelomax|Pete Lomax]] ([[User talk:Petelomax|talk]]) 01:12, 5 December 2020 (UTC) |
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:: I made a mistoke, it is an '''8'''-core PC. |
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Here are the specs: |
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OS Name Microsoft Windows 10 Pro |
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Version 10.0.19041 Build 19041 |
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Other OS Description Not Available |
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OS Manufacturer Microsoft Corporation |
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System Manufacturer LENOVO |
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System Model 90L1007AUS |
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System Type x64-based PC |
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System SKU LENOVO_MT_90L1_BU_LENOVO_FM_IdeaCentre T540-15ICB G |
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Processor Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 3000 Mhz, 8 |
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Core(s), 8 Logical Processor(s) |
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Installed Physical Memory (RAM) 16.0 GB |
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Total Physical Memory 15.9 GB |
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Hyper-V - Second Level Address Translation Extensions Yes |
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Hyper-V - Virtualization Enabled in Firmware Yes |
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Hyper-V - Data Execution Protection Yes |
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::::::::::::::::::::::::: -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 01:48, 5 December 2020 (UTC) |
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== timing for the 100,000<sup>th</sup> Ulam number == |
== timing for the 100,000<sup>th</sup> Ulam number == |
Revision as of 01:48, 5 December 2020
timings for the Nth Ulam number
Using the (new and current) REXX program, the times:
It (the REXX program) is an O(2) polynomial
0.0000005168509818 N^2 - 0.0004990440614098 N + 0.5707466809128310 Rsquared = 0.9999999315551220
(The above, as measured and timed on Paul Kislanko's 10-core 8-core PC. -- Gerard Schildberger (talk) 21:38, 4 December 2020 (UTC)
- what, pray tell, is "Paul Kislanko's 10-core PC"? --Pete Lomax (talk) 01:12, 5 December 2020 (UTC)
- I made a mistoke, it is an 8-core PC.
Here are the specs:
OS Name Microsoft Windows 10 Pro Version 10.0.19041 Build 19041 Other OS Description Not Available OS Manufacturer Microsoft Corporation System Manufacturer LENOVO System Model 90L1007AUS System Type x64-based PC System SKU LENOVO_MT_90L1_BU_LENOVO_FM_IdeaCentre T540-15ICB G Processor Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 3000 Mhz, 8 Core(s), 8 Logical Processor(s) Installed Physical Memory (RAM) 16.0 GB Total Physical Memory 15.9 GB Hyper-V - Second Level Address Translation Extensions Yes Hyper-V - Virtualization Enabled in Firmware Yes Hyper-V - Data Execution Protection Yes
- -- Gerard Schildberger (talk) 01:48, 5 December 2020 (UTC)
timing for the 100,000th Ulam number
The total time for the 100,000th Ulam number using the original REXX program would've taken a little over three years, and that is on Paul Kislanko's PC. On my old slow PC, it would've taken about a decade or thereabouts. -- Gerard Schildberger (talk) 21:22, 4 December 2020 (UTC)
- It certainly demonstrates the importance of using a decent algorithm.
- Yuppers, ya can say that again. -- Gerard Schildberger (talk) 21:39, 4 December 2020 (UTC)