Improving Locality in Out-of-Core Computations Using Data Layout Transformations

Authors:
Mahmut T. Kandemir;Alok N. Choudhary;J. Ramanujam
Affiliations:
-;-;-
Venue:
LCR '98 Selected Papers from the 4th International Workshop on Languages, Compilers, and Run-Time Systems for Scalable Computers
Year:
1998

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Abstract

Programs accessing disk-resident arrays, called out-of-core programs, perform poorly in general due to an excessive number of I/O calls and insufficient help from compilers. In order to alleviate this problem, we propose a data layout optimization in this paper. Experimental results provide evidence that our method is effective for out-of-core nests whose data sizes far exceed the size of memory.