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OO vs declarative programming

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Hello oz users

Pathos is a concurrent constraint programming system implemented in Oz. In its
first versions it was developed in Object-Oriented programming but we decide to
use only declarative programming in the next versions hoping improve its
performance. We had a great surprise, The performance improved more that we
hoped. Pathos took 45 minutes to find a solution with 1700 variables using OOP
version. With the declarative implementation pathos takes only 1 minute and 40
seconds to find the same solution.

Actually i do not understand why this happen and i really like to know.

--
Ing. Gustavo Adolfo Pabon
Gerente de Proyectos - Project  Manager
Lince Technologies
(572)  6901100 ext 133
Cali - Colombia - South America
URL:   http://atlas.puj.edu.co/~gpabon/
EMAIL: gpabon@atlas.puj.edu.co
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