Abstract
The asynchronous nature of some MPI/PVM programs does not easily fit inside the BSP model. Through the suppression of barriers and the generalization of the concept of superstep we propose a new model, the BSP Without Barriers (BSPWB) model. The BSPWB parameters and their quality are evaluated on four standard parallel platforms: the CRAY T3E, the IBM SP2, the Origin 2000 and the Digital Alpha Server 8400. This study proves that the time spent in an h-relation is more independent on the number of processors than on the communication pattern. We illustrate the BSPWB model using two problem-solving paradigms: the Nested Parallel Recursive Divide and Conquer Paradigm and the Virtual Pipeline Dynamic Programming Paradigm. The proposed paradigms explain how nested parallelism and processor virtualization may be introduced in MPI and PVM without having any negative impact in the performance and model accuracy. The prediction of the communication times is robust even for problems where communication is dominated by small messages.
Preview
Unable to display preview. Download preview PDF.
References
Juurlink B.H.H., Wijshoff H.A.G. A Quantitative Comparison of Parallel Computation Models. Proc. SPAA'96. 1996.
Marín, J. Martínez, A. Testing PVM versus BSP Programming, VIII Jornadas de Paralelismo, pp 153–160. Sept. 1997
Roda J., Rodríguez C., Almeida F., Morales D., Prediction of Parallel Algorithms Performance on Bus Based Networks using PVM. 6th Euromicro workshop on Parallel and Distributed Processing Madrid, Spain. IEEE Computer Society. Jan-1998.
Roda J.L, Rodríguez C., Sande F., Morales D.G., Almeida F. ftp://ftp.csi.ull.es/pub/parallel/BSPWB/constants.html
Valiant L.G., A Bridging Model for Parallel Computation. Communications of the ACM, 33(33(8): 103–111, August 1990.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1998 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Roda, J.L., Rodríguez, C., Sande, F., Morales, D.G., Almeida, F. (1998). A new model for the analysis of asynchronous parallel algorithms. In: Alexandrov, V., Dongarra, J. (eds) Recent Advances in Parallel Virtual Machine and Message Passing Interface. EuroPVM/MPI 1998. Lecture Notes in Computer Science, vol 1497. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0056599
Download citation
DOI: https://doi.org/10.1007/BFb0056599
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-65041-6
Online ISBN: 978-3-540-49705-9
eBook Packages: Springer Book Archive