资 源 简 介
The online repository has been moved to GitHub at https://github.com/yinyanlong/iosig as Google Code has stopped the download service recently. --Yanlong Yin 02/27/2014
IO-SIG project stands for the research project on IO-Signature based data access optimization, one of the projects in Scalable Computing Laboratory at Illinois Institute of Technology.
In high performance computing (HPC) systems, data access delay has been a major reason for poor sustained system performance (SSP). Multiple levels of memory hierarchy have been incorporated into computer architecture to take advantage of locality among data accesses to reduce the gap between peak and sustained performances. Even with the advantages, one HPC system may server some applications well enough, but works inefficiently with other applications.
To make the design, implementations and optimizations on HPC systems more efficient, we propose I/O Signature notation and a serie of tools to help