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What Are All These Names?
Parallel Virtual File System
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PVFS Components
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ROMIO MPI-IO Implementation
Data Staging for Tiled Display
Splitting Movie Frames into Tiles
Obtaining Highest Performance
Trivial MPI-IO Example
Avoiding the VFS Layer
Why Use File Views?
Setting a File View
Noncontiguous Access in ROMIO
Data Sieving Performance
Collective I/O
Collective I/O Example
Two-Phase Access
Two-Phase Performance
Hints
The Proof is in the Performance
Summary: Why Use MPI-IO?
Redundancy
Redundancy Requirements
Lazy Data Redundancy
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Author: Dan Stanzione
E-mail: dstanzi@clemson.edu
Homepage: http://www.parl.clemson.edu/~dstanzi