Proceedings. 1998 International Conference on Parallel Architectures and Compilation Techniques (Cat. No.98EX192) (1998)
Oct. 12, 1998 to Oct. 18, 1998
Michael Schmitt , University of California at Santa Barbara
Max Ibel , University of California at Santa Barbara
Anurag Acharya , University of California at Santa Barbara
Klaus Schauser , University of California at Santa Barbara
Efficient communication in a NOW environment can be a challenging task. Depending on the application, the architecture of the nodes and the characteristics of other processes running on the nodes, different communication strategies can be appropriate. In this paper, we evaluate an adaptive scheme which selects between multiple communication strategies depending on the current situation. We focus on strategies for receiver notification under varying load conditions. Previous research has shown that in a non-dedicated environment, spin-block strategies can avoid scheduling anomalies which can cause several orders of magnitude of performance degradation. However, research on these strategies has focused on a fixed spin-delay. Our scheme achieves better performance than static spin-block schemes on workstation clusters with varying load.
Cluster Computing, Message Passing, Co-Scheduling, SCI, Active Messages
M. Schmitt, M. Ibel, K. Schauser and A. Acharya, "Adaptive Receiver Notification for Non-Dedicated Workstation Clusters," Proceedings. 1998 International Conference on Parallel Architectures and Compilation Techniques (Cat. No.98EX192)(PACT), Paris, France, 1998, pp. 256.