Professor Iazeolla has been at the University of Pisa in the years 1972-1984 initially Assistant Professor, then Associate Professor and since 1979 full Professor of Computer Science (Chair of Methods for Information Processing) Faculty of Science, Information Sciences degree program.

 

In the years 1984-2011 has been at the University of Rome-TorVergata, full Professor of Computer Engineering a (Chair of Systems for Information Processing and Chair of Software Engineering), Faculty of Engineering, Computer Engineering degree program.

 

In the years 2011-2020, after retirement from the State University, prof. Iazeolla has been at the non-State University Guglielmo Marconi, extraordinary full Professor of Computer Engineering (Chair of Software Engineering and System Performance), Faculty of Science and Applied Technologies, Computer Engineering degree program, where he founded the Bachelor's and Master's Degree in Computer Engineering.

 

Since 2021 professor Iazeolla is at the University of Roma-TorVergata with honorary title of "Docens Turris Virgatae".

 

Prior of joining the University professor Iazeolla was Research associate with the National Research Council (CNR), first at the Istituto Nazionale per le Applicazioni del Calcolo (INAC, Rome), years 1965-1969, then at the Centro Studi Sistemi di Controllo Calcolo Automatico (CSSCCA, Rome) years 1969-1971, and then Research Director at the Istituto di Elaborazione dell’Informazione (IEI, Pisa) years 1971-72 after which he went to the University of Pisa.

 

In addition to CNR and University, prof. Iazeolla has carried out research at the Massachusetts Institute of Technology, MIT, Project MAC, Cambridge, US, at the Concurrent Engineering Research Center, University of West Virginia, US, and at the Data Network Architecture Center, University of Cape Town, SA, and positions in industrial companies (SELENIA SpA Naples and Rome) in digital electronics.

 

In the Universities he taught theoretical computer science, computer architectures, operating systems, continuous and discrete sequential simulation, parallel and distributed simulation, reliability , quality and performance of computer systems, of software systems and of networks.  

 

The Research Areas of prof. Iazeolla can  be summarized in:

• Study of mainframe and supercomputer parallel architectures.

• Performance, reliability and quality of computer. ICT and mobile systems.

• Performance, reliability and quality of software systems.

• Sequential, parallel and distributed simulation methods and languages.

with activities conducted both nationally and internationally, with over 120 articles, 7 books, 6 editions and monographs, and dozens of scientific reports (see Publications List),  detailed in  Sections  A, B, C, D below.

 

A)  In the computer machinery field prof. Iazeolla has contributed  to the introduction of state-of-the art scientific machinery in the country: : the Olivetti-ELEA 9104 in the late 60s and the Intel iPSC/2 Hypercube in the 80s.

1)  In  the early years at INAC he  introduced, with Paolo Ercoli, the great mainframe for scientific applications produced by Olivetti-electronics, the ELEA 9104 machine, later named CINAC (Calculator INAC). The machine, totally solid state, was born to compete with the largest European and US mainframes of the time (such as the Multics GE 645 (in whose research group at MIT prof. Iazeolla participated) , the Borroughs B5000, the CTSS 704 IBM). It was equipped with stack memory for the fast treatment of block languages ​​of the ALGOL family, and an entirely microprogrammed set of  instructions  oriented to virtual memory, multiprogramming and time-sharing (see Scientific Publications [2, 3, 4] and CINAC Reports [1, 2, 3, 4, 5, 6]).

2)  In the early years at the University of Rome-TorVergata,  he introduced the Intel iPSC/2 Hypercube, a 4-dimensional-cube multiprocessor architecture, able to match the performance of vector supercomputers at a fraction of their cost (10K $ for Mflop against 1000K $ for MFlop ( see Dossiers [4, 5] and Scientific Publications [41, 42, 43, 44, 46, 47, 48, 51, 52, 53, 54, 62])).

 

B)  In the scientific knowledge field,  prof. Iazeolla has contributed  to the dissemination of cutting-edge computer skills in the field of  Discrete-event Simulation and of Performance and Reliability of computer systems and  of mobile and ICT systems  with national and international awards.

1)  With  his works initially at Pisa University he has spread the discipline of Discrete event Simulation for the analysis of mathematically intractable systems (see Books [2, 3, 4, 7, 8, 10, 11, 12], Editions [7, 8] and Scientific Publications [15, 17, 18, 20, 49, 50, 57, 63, 71, 76, 77, 81]).

2)  At same time from Pisa he spread the discipline of  Computer Performance Evaluation for the study of system   performance and reliability (see Editions [5, 6, 9], Dossiers [2,3] and Scientific Publications [1, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37]).

3)  Later, in  Roma-TorVergata University, he developed works on Parallel, Distributed and Web-based Simulation by extending to parallel and web architectures his knowledge on discrete event simulation, (see Books [11, 12] and Scientific Publications [53, 58, 60, 62, 64, 67, 70, 72, 90, 93, 94, 95, 96, 97, 99, 100, 101, 102, 103, 104, 105, 106, 108, 121]).

4)  At same time, in  Roma-TorVergata, he developed studies and works on Software  Performance, Reliability and Quality evaluation, by extending to software engineering his knowledge on computer performance and reliability (see Books [13], Dossiers [2, 3], and  Scientific Publications [38, 39, 40, 45 , 55, 56, 59, 61, 63, 65, 66, 68, 69, 73, 74, 75, 78, 79, 80, 82, 83, 84, 85, 86, 87, 88, 120]).

5)  In Roma-Torvergata and lately Marconi University he also developed studies on the Performance of mobile and  ICT (Information & Communication Technology)  Systems (see Scientific Publications [89, 91, 92 , 98, 107, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 122] and Recent Reports [1,2]).

 

C)  In the international cooperations field, prof. Iazeolla has established great research collaborations with  important Europeans and US organizations:

·     Member of the  Board of Editors of  international Journals

·       MODELING SIMULATION and SCIENTIFIC COMPUTING

·       PERFORMANCE EVALUATION

·       SIMULATION PRACTICE and THEORY

·     Member of

·       The "IFIP Working Group 7.3 on Computer Performance Evaluation"

·       The Performance Review Commission of EUROCONTROL, the European Organization for the Safety of Air Navigation.

·     Member of the Board of Directors of

·       Eurosim (European Federation of Simulation Societies)

·       The SCSI (Society for Computer Simulation International).

·     Member of the  Scientific Committees of  

·       The IFIP WG 7.3 International Symposium on Computer Performance Modeling, Measurement and Evaluation

·       The European Simulation Congress

·       The "European Simulation Multiconference

·       The European Simulation Symposium since 1985.

·     Founder and Chairman of

·       The  MCPR Workshop (Mathematical Computer Performance and Reliability Workshop)  today Mathematical Performance Modeling and Analysis (MAMA) Conference and Matrix-Analytic Methods in Stochastic Models Conference.

·       The Italian Society for Computer Simulation (ISCS)

·       The CERTIA Research Center (Center for Research and Education in Advanced Informatics Technologies and Applications), the University of Roma Torvergata- Industry Consortium  operating in the fields of software engineering, simulation, parallel computing, cooperative and multimedia computing, internetworking.

 

D) In the field of research and development, prof. Iazeolla has been responsible for numerous  leading national and international research projects

      Projects were both at the European and US level, with funding from the Ministry of University and Research, the National Research Council, the European Community and important international Institutions and Universities (see List of National,  European, US and Overseas Research Projects).