Iosig
A tool that collects and analyzes I/O traces. It supports C and Fortran, with Java support in progress. It traces POSIX and MPI-IO in MPICH2.
Install / Use
/learn @yinyanlong/IosigREADME
IOSIG software is a toolkit developed by Scalable Computing Software Lab at Illinois Institute of Technology. In our research work, we designed and developed several performance optimization techniques for parallel I/O systems. Many of the techniques is application-aware that can utilize the I/O characteristics information of the applications to improve the efficiency of I/O system . We use IOSIG to collect and analyze applications I/O characteristics, which works as follows:
- IOSIG trace collector records the trace of all the I/O operations of the application.
- The IOSIG trace analyzer analyzes the trace files and recognizes the data access patterns.
- The analysis results can be displayed using the browser-based dashboard.
See INSTALL.md for how to install and use the software. For more examples on how to use IOSIG to profile parallel I/O benchmarks and applications, check the GitHub project: https://github.com/yinyanlong/profiling_parallel_io.
Contact:
- Yanlong Yin (yinyanlong@gmail.com)
- Shuibing He (heshuibing@zju.edu.cn)
- Xian-He Sun (sun@iit.edu)
