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 Dijkstra's Shortest Path Algorithm		  New Topic  Reply to Topic
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daydreamer82
Starting Member

3 Posts
Posted - 04/11/2007 :  17:01:17  Show Profile  Reply with Quote
hello,

This algorithm is providential for me. Im a student experimenting path discovering on Internet. I succeeded to put some traceroute data into a mysql database. And now, i tried to find a way to find shortests paths...

Thanks a lot ;)



PS. If you have the mysql version ... ;)
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ramaju
Starting Member

1 Posts
Posted - 09/15/2007 :  21:18:55  Show Profile  Reply with Quote
daydremer82 did you find the mysql version?
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spirit1
Cybernetic Yak Master

Slovenia
11741 Posts
Posted - 09/15/2007 :  21:21:18  Show Profile  Visit spirit1's Homepage  Reply with Quote
and what is stopping you from converting it to MySql version?
Lazyness?

_______________________________________________
Causing trouble since 1980
blog: http://weblogs.sqlteam.com/mladenp
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SwePeso
Patron Saint of Lost Yaks

Sweden
29138 Posts
Posted - 09/16/2007 :  05:15:58  Show Profile  Visit SwePeso's Homepage  Reply with Quote
Spirit1, do you think you can convert my original VB-code to an assembly for more speeed?


E 12°55'05.25"
N 56°04'39.16"
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spirit1
Cybernetic Yak Master

Slovenia
11741 Posts
Posted - 09/16/2007 :  09:51:20  Show Profile  Visit spirit1's Homepage  Reply with Quote
sure

_______________________________________________
Causing trouble since 1980
blog: http://weblogs.sqlteam.com/mladenp
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Kristen
Test

United Kingdom
22191 Posts
Posted - 09/16/2007 :  09:52:29  Show Profile  Reply with Quote
Foolish boy Peso. You didn't say "how much"
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dim5b
Starting Member

1 Posts
Posted - 01/12/2009 :  05:59:37  Show Profile  Reply with Quote
Any MySQL Version???
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KadirCan
Starting Member

Turkey
1 Posts
Posted - 09/19/2012 :  05:40:10  Show Profile  Reply with Quote
Hi Guys and SwePeso,

This acticle is really awesome. I implement that for my project and there is not problem beside performance.

i little bit modify the system. Paths and Nodes are static. There are 4222 nodes and 9258 paths. I am just execute the dbo.uspdijkstraresolve procedure for result.

Query execution time is about 16sec and it is really very low performance for my project.

Than i find some article that improving performance..
http://www.cs.uu.nl/docs/vakken/gd/jesper2.pdf

I have try to modify SwePeso's codes but there are lots of bugs i think.

Can you help me SwePeso to improve your codes performance?? it seems to be 20 times faster than Dijkstra on average..
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