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1998

Compilation Techniques for Out-of-Core Parallel Computations

9 years 3 months ago
Compilation Techniques for Out-of-Core Parallel Computations
The difficulty of handling out-of-core data limits the performance of supercomputers as well as the potential of the parallel machines. Since writing an efficient out-of-core version of a program is a difficult task and virtual memory systems do not perform well on scientific computations, we believe that there is a clear need for compiler directed explicit I/O approach for out-of-core computations. In this paper, we first present an out-of-core compilation strategy based on a disk storage abstraction. Then we offer a compiler algorithm to optimize locality of disk accesses in out-ofcore codes by choosing a good combination of file layouts on disks and loop transformations. We introduce memory coefficient and processor coefficient concepts to characterize the behavior of out-of-core programs under different memory constraints. We also enhance our algorithm to handle data-parallel programs which contain multiple loop nest. Our initial experimental results obtained on IBM SP-2 a...
Mahmut T. Kandemir, Alok N. Choudhary, J. Ramanuja
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 1998
Where PC
Authors Mahmut T. Kandemir, Alok N. Choudhary, J. Ramanujam, Rajesh Bordawekar
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