[fpc-devel] Parallel Computing

Michael Schnell mschnell at lumino.de
Mon Nov 3 16:29:01 CET 2008

> Great and you really believe this accelerates a program? Starting a
> thread takes a lot of time and such loops are usually memory throughput
> bound.
OK, I should not have used 10 as the element but 1000000 :). And of 
course it makes more sense if a more complex calculation is to be done 
in each loop. But exactly this issue (lots of independent calculations 
in parallel) is a widely seen task (e.g points in physical fields).

Of course the RTL is not supposed to start a thread for each of the loop 
runs but assign a number of them to a couple of threads.


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