using threads with for-loops

Mathias Waack M.Waack at
Tue Sep 28 21:25:17 CEST 2004

Peter Hansen wrote:

> Klaus Neuner wrote:
>> Hello,
>> I wrote a program that does essentially the following:
>> for rule in rules:
>> for line in line_list:
>> line = my_apply(rule, line)
>> line_list contains the lines of some input text.
>> To "apply a rule" always means to
>>   1. do some regex matches on line
>>   2. substitute something in line
>> My question is: Given this "architecture", does it make sense
>> to use threads? And if so, how?
> The code is (based on what you give above) "CPU bound",
> which means you will not see any advantage in using
> threads.  

Have you ever seen machines with more than one CPU? The code above is
perfectly suited for parallelization. 


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