Distributed Image Processing Environment VIOS
Update 1999/8/18
In Nagoya Institute of Technology, IWATA LAB, distributed image processing group, distributed image processing environment VIOS which can simply describe parallel image processing algorithm in workstation cluster and on shared memory processor (SMP) is developed from 1990.
Features of distributed image processing environment VIOS
- Distributed and cooperated system using three kinds of processes, user interface process VPE(VPE : Visual Programming Editor) , system management process (OM: Object Manager), image processing engine (IPU: Image Processing Unit)
- Parallel image processing descriptive language VPE-p in which distributed image processing can be easily described even in the user without a knowledge of network programming and thread is prepared.
- Data parallel program model that a part of image called the parallel image processing working set are putted into the virtual calculation resources on the network is adopted.
- Various mechanisms for improving the processing speed in data access through the network are introduced.
- The main flow part of the program is executed as an interpreter. Main image processing part is converted to C++ which is description language of VPE, compiled and dynamically loaded in IPU, and executed using native code.
- Each module (communication, image processing engine, etc. ) in the image processing engine IPU are programmed using thread.
The utilization field of VIOS
Most of image processing algorithm with the parallelism and matrix calculation can be programmed using VIOS, if the efficiency is disregarded.
And, it is also considered that VIOS is utilized for the practice of the parallel processing. In comparison with PVM this case, (1) The result is visually expressed (2) The effect of the parallelization is comprehensible (3) There is an advantage of there being no necessity of the coding of extra parts such as the communication.
The environment that has confirmed to run the VIOS are
- Solaris 2.6(Intel), Sun WorkShop Compiler C++ 4.2
- Solaris 2.6(Intel), gcc 2.8.1
- Solaris 2.6(Intel), egcs 1.1.1
- Solaris 2.5(SPARC), Sun WorkShop Compiler C++ 4.1
- Solaris 2.5(SPARC), gcc 2.7.2
VPE is running on X11. VIOS can be running even in other UNIX environment that supports C++ and pthread. LINUX has no thread safe network libraries environment, and then VIOS is not supported in LINUX environment.
(Note)“ar”and “ld”must be original(not GNU) version on Solaris.
Download
Source code (Rev1.0 1999/3/25) of latest VIOS III is available from next URL. But all document in distributed source code and README files are written in Japanese. (Sorry)
http://mars.elcom.nitech.ac.jp/~tkawawa/vios/vios3-rev2.3.tar.gz
Sample Program
- The calculation of the common part series by the dynamic programming matching method.
- Temperature balanced state calculation by the Jacobi method.
- The edge detection using snake model.
- Others(Filtering, Matrix Calculation)
Related Papers
- Hiroshi Matsuo, Kosaku Nakada and Akira Iwata:" A Distributed Image Processing Environment VIOS III and it's Performance Evaluation",1998.8,14th Int. Conf. on Pattern Recognition, Vol.II, pp. 1538-1542 (1998) (PDF file)
- Hiroshi MATSUO, Akira IWATA,"A distributed image processing environment VIOS II" 1993.,Asian Conference Computer Vision (ACCV93), pp.715-718 (PS file)
- H. Matsuo, K. Wada, A. Iwata, N. Suzumura:" Distributed Image Processing Enviroment VIOS”, 1992.9,IEICE-J,Vol.J75-D-II, No.8, pp.1328-1337 (In Japanese).
Copyright and distribution:The Nagoya Institute of Technology, Iwata laboratory has all copyrights of the VIOS. Other condition follows it for GNU General Public License Version 2.
<vios-admin@mat.elcom.nitech.ac.jp>