khonsari's picture

Ahmad Khonsari

Associate Professor
Phone.Number: 61114333
Email: akhonsari [AT] ut.ac.ir






Education

Ph.D.: Ph.D. in Computer Science, University of Glasgow, Glasgow, UK
M.Sc.: M.Sc. in Computer Architecture Iran University of Science and Technology (IUST), Tehran, Iran
B.Sc.: B.Eng. (Honours) in Electrical Engineering (Hardware), Shahid Beheshti University, Tehran, Iran

Research Interests

Interconnect Networks (Multicomputers, MPSoC, Networks of Workstations)
Mobile and Wireless Ad-hoc Networks
High Performance Computer Architectures
Performance Modelling/Evaluation

Current Researches

High Speed Computer Networking (architectures, algorithms and protocols)
Interconnect Networks (Multicomputers, MPSoC, Networks of Workstations)
Mobile, Ad Hoc and Sensor Networks
Peer-to-Peer and Grid Computing
Internet, P2P and Distributed Systems
Performance Modelling/Evaluation

Courses

Advanced Network (graduate)
Advanced Computer Networks (graduate)
Performance Evaluation of Computer Systems (graduate)
Computer Networks
Computer Structure & Assembly Languages (Intel 80x86, Motorola 68000, embedded systems)
Advanced Programming in C
Computer Architecture/ Organisation
Digital Logic Design
Electronics

Selected Publications

1) M. Hoseiny Farahabady, F. Safaei, A. Khonsari, M. Fathy, Characterization of Spatial Fault Patterns in Interconnection Networks, accepted in Journal of Parallel Computing.

2) N AlZeidi, M Ould-Khaoua, A Khonsari, Performance Modelling of Torus Interconnection Networks With Deep Buffers, accepted in the International Journal of Computers and Applications.

3) A. Khonsari, A. Shahrabi, M. Ould-khaoua, A performance model of Disha routing in k-ary n-cube networks, accepted in Parallel Processing Letters.

4) A. Khonsari, M. Ould-Khaoua, A Performance Model of Compressionless Routing in k-Ary n-Cube Networks, Performance Evaluation, an International Journal, 63 (4) (2006) 423 – 440.

5) A. Khonsari, H. Sarbazi-Azad, M. Ould-khaoua, A Performance model of Software-Based deadlock recovery routing algorithm in Hypercubes, Parallel Processing Letters, 15 (1&2) (2005) 153 – 168.

6) A. Khonsari, H. Sarbazi-Azad, M. Ould-khaoua, Analysis of true fully adaptive routing with software-based deadlock recovery, Journal of Systems and Software, 71 (2004) 259–270.

7) A. Khonsari, M. Ould-Khaoua, Compressionless wormhole routing: an analysis for hypercube with virtual channels, Computers & Electrical Engineering, 30 (2004) 45–60.

8) A. Khonsari, A. Shahrabi, M. Ould-khaoua and H. Sarbazi-Azad, Performance comparison of deadlock recovery and deadlock avoidance routing algorithms in wormhole-switched networks, IEE Proceedings-Computers and Digital Techniques, 150 (2) (2003) 97-106.

9) H. Sarbazi-Azad, A. Khonsari, M. Ould-khaoua, Analysis of k-ary n-cubes with dimension-ordered routing, Future Generation Computer Systems 19 (2003) 493–502.

10) A. Khonsari, H. Sarbazi-Azad, and M. Ould-khaoua, An analytical model of adaptive wormhole routing with time-out, Future Generation Computer Systems, 19 (2003) 1-12.

11) H. Sarbazi-Azad, A. Khonsari, M. Ould-Khaoua, Performance analysis of deterministic routing in wormhole k-ary n-cubes with Virtual Channels, Journal of Interconnection Networks, 3 (1 & 2) (2002) 67-83.

12) F.Safaei, A.Khonsari, M.Fathy, M.Ould-Khaoua, Analysis of Circuit Switching for the Torus Interconnect Networks with Hot-Spot Traffic, IEEE PEN-PCGCS’06, held in conjunction with ICPP’06, USA.

13) N. Alzeidi, A. Khonsari , M. Ould-Khaoua, L. M. Mackenzie, A General Model for Virtual Channel Multiplexing, International Conference on Network and Parallel Computing (NPC06), 2006, Japan.

14) F.Safaei, A.Khonsari, M.Fathy, N. Alzeidi, M.Ould-Khaoua, Performance Modeling of Fault-Tolerant Circuit-Switched Communication Networks, 5th International Symposium on Parallel Computing in Electrical Engineering, PARELEC 06, 2006, Poland.

15) F.Safaei, A.Khonsari, M.Fathy, M.Ould-Khaoua, Performance Comparison of Routing Algorithms in Wormhole-Switched Fault-Tolerant Interconnect Networks, International Conference on Network and Parallel Computing (NPC06), 2006, Japan.

16) Mahdi Kefayati, Hamid R. Rabiee, S. Ghasem Miremadi, Ahmad Khonsari, Misbehaviour Resilient Multi-path Data Transmission in Mobile Ad-hoc Networks, the fourth ACM workshop on Security of Ad Hoc and Sensor Networks (SASN06), 2006, USA.

17) F.Safaei, A.Khonsari, M.Fathy, M.Ould-Khaoua, Pipelined Circuit Switching: A New Fault-Tolerant Mathematical Model in Torus, 11th International CSI Computer Conference (CSICC06), pp. 377-384, Jan. 2006, Iran.

18) F. Safaei, A. Khonsari, M. Fathy, M.Ould-Khaoua, N. Alzeidi, Software-Based Fault-Tolerant Routing Algorithm in Multi-Dimensional Networks, PMEO-PDS’06 held in conjunction with IEEE IPDPS, 2006, Greece.

19) M. Hoseiny Farahabady, F. Safaei, A. Khonsari, M. Fathy, On the Fault Patterns Properties in the Torus Networks, ACS/IEEE International Conference on Computer Systems and Applications (AICCSA06), pp. 215-220, March 2006, Dubai.

20) F.Safaei, M.Fathy, A.Khonsari, M.Ould-Khaoua, A Performance Model of Fault-Tolerant Routing Algorithm in Interconnect Networks, LNCS, 6th International Conference on Computational Science (ICCS06), Part I, LNCS 3991, pp. 744 –752, May 2006, Reading, UK.

21) F.Safaei, M.Fathy, A.Khonsari, M.Ould-Khaoua, Performance Modeling of a Fully Adaptive and Fault-Tolerant Wormhole Switching Strategy in 2-D Mesh, International Conferences on Computational Science and Its Application (ICCSA06), LNCS 3984, pp. 118–128, May 2006, Glasgow, UK.

22) N. Alzeidi , A. Khonsari, M. Ould-Khaoua, L. M. Mackenzie, On the Probability Distribution of Busy Virtual Channels, PMEO-PDS’06 held in conjunction with IEEE IPDPS, 2006, Greece.

23) N. Alzeidi , A. Khonsari, M. Ould-Khaoua, L. M. Mackenzie, A New Approach to Model Virtual Channels in Interconnection Networks, 11th International CSI Computer Conference (CSICC06), pp. 393-399, Jan. 2006, Iran.

24) A. Khonsari, M. Ould-Khaoua, A. Nayebi, H. Sarbazi-azad, The Impacts of Timing Constraints on Virtual Channels Multiplexing in Interconnect Networks, Proc. 25th IEEE International Performance Computing and Communications Conference , IPCCC 2006, April 2006, Phoenix, Arizona.

25) F. Safaei, A. Khonsari, M. Fathy, M. Ould-Khaoua, Performance Modelling of Pipelined Circuit Switching in Torus with Hot Spot Traffic, LNCS, NPC05 conference, pp. 245-248, 2005, China.

26) F. Safaei, A. Khonsari, M. Fathy, M. Ould-Khaoua, Performance Modelling and Analysis of Pipelined Circuit ?Switching in Hypercubes with Faults, IEEE Proceedings of the Eighth International Conference on High-Performance Computing in Asia-Pacific Region (HPCASIA’05), 2005, China.

27) H. Sarbazi-Azad, A. Khonsari, A class of ball-and-bin problems and its application to mesh networks, Proceedings of 10th IEEE International Conf. On Electronics, Circuits, and Systems (IEEE ICECS’2003), Dec. 2003, Sharjah, U.A.E.

28) A. Khonsari, A. Shahrabi, M. Ould-khaoua, Disha: A Performance Model of a True Fully Adaptive Routing Algorithm, IEEE 10th International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS2002), IEEE Computer Society, Forth Worth, Oct. 2002, Texas, USA.

29) Ahmad Khonsari, Hamid Sarbazi-Azad, Mohamed Ould-Khaoua: Analysis of Timeout-Based Adaptive Wormhole Routing. IEEE 9th International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS2001), IEEE Computer Society, August 2001, Cincinnati, Ohio, USA.

30) A. Khonsari, H. Sarbazi-Azad: On the Problem of Distributing Objects in Cells with Different Capacities, Proc. International Conference on Algorithms Theory, Discrete Mathematics, Systems and Control, December 17-21, 2001, Cairns, Queensland, Australia, also in V.V. Kluev, N.E. Mastorakis (Editors), Topics in Applied and Theoretical Mathematics and Computer Science, WSEAS Press, 2001, ISBN: 960-8052-47-6, pp.155-157.

31) H. Sarbazi-Azad, A. Khonsari, M. Ould-khaoua: A Performance Model of Deterministic Wormhole Routing in k-ary n-cubes Using Virtual Channels, in Proc. the 8th International Conference on Parallel and Distributed Systems (ICPADS 2001), IEEE Computer Society, pp. 509-516, Jun. 2001, Kyongju, Korea.

32) M. Ould-Khaoua, A. Khonsari: An Analytical Model of Adaptive Wormhole Routing with Deadlock Recovery, Proc. Europar’2000, in Lecture Notes in Computer Science, Springer-Verlag, Munich, pp. 900-903, Sept. 2000, Germany.