This work presents implementations and tuning experiences with parallel irregular applications developed using the object oriented framework DAM-PVM/DAC. It is implemented on top of DAMPVM and provides automatic partitioning of irregular divide-and-conquer (DAC) applications at runtime and dynamic mapping to processors taking into account their speeds and even loads by other user processes. New implementations of parallel applications tuned for shortest execution time are investigated. They include αβ search, recursive Fibonacci, (nk) and finding twin prime numbers in parallel. Various DAC parameters were tuned for specific applications including costs of computing vectors/-subtrees, maximum partitioning levels etc. Moreover, the overhead of DAMPVM/DAC compared to sequential implementations is shown including previously implemented adaptive quadrature integration and image recognition.
Autorzy
Informacje dodatkowe
- DOI
- Cyfrowy identyfikator dokumentu elektronicznego link otwiera się w nowej karcie 10.1007/3-540-45825-5_36
- Kategoria
- Aktywność konferencyjna
- Typ
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Język
- angielski
- Rok wydania
- 2002
