Parallel and Distributed Processing Symposium, International (2004)
Santa Fe, New Mexico
Apr. 26, 2004 to Apr. 30, 2004
William Kuchera , Michigan Technological University
Charles Wallace , Michigan Technological University
The memory consistency model underlying the Unified Parallel C (UPC) language remains a promising but underused feature. We report on our efforts to understand the UPC memory model and assess its potential benefits. We describe problems we have uncovered in the current language specification. These results have inspired an effort in the UPC community to create an alternative memory model definition that avoids these problems. We give experimental results confirming the promise of performance gains afforded by the memory model's relaxed constraints on consistency.
C. Wallace and W. Kuchera, "The UPC Memory Model: Problems and Prospects," Parallel and Distributed Processing Symposium, International(IPDPS), Santa Fe, New Mexico, 2004, pp. 16a.