Difference between revisions of "Computer Composition Searches"

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==Exhausted Composition Searches==
 
==Exhausted Composition Searches==
 
{| style="color:blue;background-color:#ffffdd;" cellpadding="5" cellspacing="0" border="1"
 
{| style="color:blue;background-color:#ffffdd;" cellpadding="5" cellspacing="0" border="1"
! Method                    || Search Constraints      || Results || Time/Computer/Program || Date || Run by||Notes
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! Method                    || Search Constraints      || Results || Time/<br>Computer/<br>Program || Date || Run by||Notes
 
|-
 
|-
 
| Cambridge Surprise Major || >=5000 changes<br>Tenors together<br>Round blocks<br>Bob = 14, Single = 1234 || 9,997 compositions<br>255,138 rotations || 9 days<br>P90 PC<br>SMC||1995 || Graham John||See http://www.changeringing.co.uk/cambridgefm.htm
 
| Cambridge Surprise Major || >=5000 changes<br>Tenors together<br>Round blocks<br>Bob = 14, Single = 1234 || 9,997 compositions<br>255,138 rotations || 9 days<br>P90 PC<br>SMC||1995 || Graham John||See http://www.changeringing.co.uk/cambridgefm.htm
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| Cambridge Surprise Major || >=5000 changes<br>Tenors together<br>Snap finishes<br>Bob = 14, Single = 1234 || 15,416 compositions || 13 days<br>PC<br>SMC32||1998 || Graham John||See http://www.changeringing.co.uk/cambridgefm.htm
 
| Cambridge Surprise Major || >=5000 changes<br>Tenors together<br>Snap finishes<br>Bob = 14, Single = 1234 || 15,416 compositions || 13 days<br>PC<br>SMC32||1998 || Graham John||See http://www.changeringing.co.uk/cambridgefm.htm
 
|-
 
|-
| Bristol Surprise Maximus || 5000-5100 changes<br>Tenors together<br>Round blocks<br>Bob = 14, Single = 1234 || 202,384,361 compositions || 47 hours<br>PC<br>SMC32||1998 || Mark Davies||
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| Bristol Surprise Maximus || 5000-5100 changes<br>Tenors together<br>Round blocks<br>Bob = 14, Single = 1234 || 202,384,361 compositions || 47 hours<br>PC<br>SMC32||1998 || Mark Davies||<br>
 
|-
 
|-
| Yorkshire Surprise Maximus || 5000-5100 changes<br>Tenors together<br>Round blocks<br>Bob = 14, Single = 1234, Big Bob=18 || 202,927,179 compositions || 5 days, 23 hours<br>PC<br>SMC32||1998 || Mark Davies||
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| Yorkshire Surprise Maximus || 5000-5100 changes<br>Tenors together<br>Round blocks<br>Bob = 14, Single = 1234, Big Bob=18 || 202,927,179 compositions || 5 days, 23 hours<br>PC<br>SMC32||1998 || Mark Davies||<br>
  
 
|}
 
|}

Revision as of 09:19, 5 February 2010

A computer can be a useful tool to search for compositions, yet even with today's fast processors exhausting many composition searches is too big a task. This page has been created to keep a record of searches people have successfully completed in popular methods. If you have completely exhausted a computer search for compositions, please add an entry to the table below, stating any constraints you applied to the search, when you first ran it, and any other information you think would be of interest.

Exhausted Composition Searches

Method Search Constraints Results Time/
Computer/
Program
Date Run by Notes
Cambridge Surprise Major >=5000 changes
Tenors together
Round blocks
Bob = 14, Single = 1234
9,997 compositions
255,138 rotations
9 days
P90 PC
SMC
1995 Graham John See http://www.changeringing.co.uk/cambridgefm.htm
Cambridge Surprise Major >=5000 changes
Tenors together
Snap finishes
Bob = 14, Single = 1234
15,416 compositions 13 days
PC
SMC32
1998 Graham John See http://www.changeringing.co.uk/cambridgefm.htm
Bristol Surprise Maximus 5000-5100 changes
Tenors together
Round blocks
Bob = 14, Single = 1234
202,384,361 compositions 47 hours
PC
SMC32
1998 Mark Davies
Yorkshire Surprise Maximus 5000-5100 changes
Tenors together
Round blocks
Bob = 14, Single = 1234, Big Bob=18
202,927,179 compositions 5 days, 23 hours
PC
SMC32
1998 Mark Davies