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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
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
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
results for matrix addition
Results for Matrix Addition
  • Results on Intel Core 2 Duo E6400 2.1 GHz
  • Linux kernel version 2.6.9-5
results for matrix maximum
Results for Matrix Maximum
  • Results similar to Matrix Addition
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