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
The Research Areas of prof. Iazeolla can be summarized in:
• Study of mainframe and supercomputer parallel
• Performance, reliability and quality of computer.
ICT and mobile systems.
• Performance, reliability and quality of
• Sequential, parallel and distributed
simulation methods and languages.
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
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,
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
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]).
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,
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
, 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]).
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
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
· PERFORMANCE EVALUATION
· SIMULATION PRACTICE and THEORY
"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
(European Federation of Simulation Societies)
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
· The European Simulation Symposium since
· Founder and
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
· 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
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).