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how fast is multi threaded ? (Read 4176 times)
bubba
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how fast is multi threaded ?
02/25/10 at 19:19:31
 
how many threads can multi-thread have ? is there an option to set that manually ?
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Re: how fast is multi threaded ?
Reply #1 - 02/25/10 at 21:19:46
 
There are two ways for multithreading:  
 
1.  The menu: advanced -> Multi-threading -> Multi-thread will automatically determine which part can be multi-threaded.  But it usually does not do very well in parallelization.  
 
2.  You can control multi-threading by calling tasks using "Call parallel".  This is the preferred way.   Before parallel calls, you can use SetDownloadParameter(threads)  to set the number of threads, default is 10 threads.  
 
Note that in parallel tasks, javascript pages will not be supported.  So you can only expect it to use raw HTML pages.  
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bubba
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Re: how fast is multi threaded ?
Reply #2 - 02/26/10 at 12:11:19
 
sounds difficult...
 
would you have an example on how to multi-tread the pubmed example bot ?
 
cheers
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Re: how fast is multi threaded ?
Reply #3 - 02/26/10 at 13:52:16
 
It is simple.  Right-click the "Submit form with 'pubmed-key'" action, select "Events ...", and change the event's ValueType from "CallPath" to "Call parallel".  Done.  
 
But the pubmed robot may not work because it uses a lot of javascripts.
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