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Optimization of Memory Allocation in VSIPL

Optimization of Memory Allocation in VSIPL. Jinwoo Suh, Janice O. McMahon, Stephen P. Crago, and Dong-In Kang University of Southern California Information Sciences Institute September 18, 2007. Memory Allocation in VSIPL. VSIPL: Vector, Signal, and Image Processing Library

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Optimization of Memory Allocation in VSIPL

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  1. Optimization of Memory Allocation in VSIPL Jinwoo Suh, Janice O. McMahon, Stephen P. Crago, and Dong-In Kang University of Southern California Information Sciences Institute September 18, 2007

  2. Memory Allocation in VSIPL • VSIPL: Vector, Signal, and Image Processing Library • Reference implementation: straightforward memory allocations • Uses malloc() and free() handled by operating system • Costs many cycles • Library overhead for management, bookkeeping, etc. • Proposed implementation • Uses light-weight indexes to manage memory space • Emphasis on fast operation over efficient use of memory • First-fit-based algorithm

  3. Results for Matrix Addition • Results on Intel Core 2 Duo E6400 2.1 GHz • Linux kernel version 2.6.9-5

  4. Results for Matrix Maximum • Results similar to Matrix Addition

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