Igor V Schagaev
Prof. Igor Schagaev, Eng.Degree, MPEI77, PhD in Comp.Sci.87, Inst-te of Control Sciences, USSR Academy of Sciences. Currently Igor is Prof. and Director of ITACS Ltd, UK. Igor has lead international projects in advanced computer systems design, avionics, system science. Keynotes for:
- Dynamic Safety of Aircrafts, IFAC98, (Patras)
- Fault Tolerance: Past Present and Future IFAC 99
- RT Reliable Distributed Systems (including Internet) CWANC12 (Hainan)
- Flight Global15-16 Active Control, Safety and Maintenance (with NASA)
http://worldcomp.org/events/2016/keynotes/schagaev_keynote)
- Worldcomp USA17 Evolving Systems
- ISPI, Montreal Canada, 02 May 2017
-The Role of Technology
- IAP17 Conference, London The Role of ICT
- Evolving Systems, 2018 Shantou University
Igor worked, collaborated and consulted corporations and government agencies, including: Sukhoy Design Bureau 1991-1995, Boeing 1998-1999, Airbus 2006, Swedish Government (on efficiency of research programs -2014). Igor lead scientifically EC Funded project ONBASS 2004-2009.
Most distinctive collaborating with Prof G Metakides, Prof Wirth, Prof Birolini and Prof Gutknecht. Few video interviews for The Times and Boston Facultimedia were made. Week size Video Course on advanced computer science was made for 4000 audience in Minsk Belarus in 2021.
Igor, his team and company patented an Active System Control Method in 2006. Few international attempts to endorse it proved the importance of this invention: https://www.ipo.gov.uk/p-challenge-decision-results/o35518.pdf
Igor's team made an industrial prototype of active system safety devices.
Supervisors: Prof Egor Sogomonyan, Prof Alessandro Birolini, Prof George Metakides, and Dr Janez Potocnik
Address: Stevenage, United Kingdom
- Dynamic Safety of Aircrafts, IFAC98, (Patras)
- Fault Tolerance: Past Present and Future IFAC 99
- RT Reliable Distributed Systems (including Internet) CWANC12 (Hainan)
- Flight Global15-16 Active Control, Safety and Maintenance (with NASA)
http://worldcomp.org/events/2016/keynotes/schagaev_keynote)
- Worldcomp USA17 Evolving Systems
- ISPI, Montreal Canada, 02 May 2017
-The Role of Technology
- IAP17 Conference, London The Role of ICT
- Evolving Systems, 2018 Shantou University
Igor worked, collaborated and consulted corporations and government agencies, including: Sukhoy Design Bureau 1991-1995, Boeing 1998-1999, Airbus 2006, Swedish Government (on efficiency of research programs -2014). Igor lead scientifically EC Funded project ONBASS 2004-2009.
Most distinctive collaborating with Prof G Metakides, Prof Wirth, Prof Birolini and Prof Gutknecht. Few video interviews for The Times and Boston Facultimedia were made. Week size Video Course on advanced computer science was made for 4000 audience in Minsk Belarus in 2021.
Igor, his team and company patented an Active System Control Method in 2006. Few international attempts to endorse it proved the importance of this invention: https://www.ipo.gov.uk/p-challenge-decision-results/o35518.pdf
Igor's team made an industrial prototype of active system safety devices.
Supervisors: Prof Egor Sogomonyan, Prof Alessandro Birolini, Prof George Metakides, and Dr Janez Potocnik
Address: Stevenage, United Kingdom
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Videos by Igor V Schagaev
sure the system software (run time system, languages and even internal organisation must be revised and redone if we want to have safe and secure ICT applications. What was done by us and what we should do is presented in this lecture. It covers above mentioned system design and also concurrency, parallelism and fault tolerance. Slides for this lecture are available from here:
https://www.academia.edu/44376085/Advanced_System_Software_Design
for real applications, really serious applications such as real-time safety critical applications hardware must be re-designed from top to bottom.
slides for this lecture are here:
https://www.academia.edu/44372287/Advanced_Hardware_Design
Books by Igor V Schagaev
Papers by Igor V Schagaev
Talks, Interviews, Conference Presentations by Igor V Schagaev
Keywords: Distributed Computing, System Performance, Parallel Computing, Amdahl Ratio, Run-time Systems
Drafts by Igor V Schagaev
system performance as a whole sometimes tripled. Complexity of the system
became uncontrollable with zillions of processes and elements to juggle increased
unconsciously, leaving for us some comfort but at an astronomical cost. What it
means? We are doing something seriously wrong and doing it consistently and
persistently. Thus, authors of this work have decided to put together our own
discussions and estimations we did since 2002 up to now. We show that system
performance depends on user, hardware and software, structure or architecture
of a system and its topology. We propose to see performance analysis a bit wider,
thinking systematically what various zones of computer or distributed system can
bring or contribute, including the role of processor, structure of system software
and overvalued parallelization (try to eat and dance at the same time - it might be
fun).
We have introduced a kind of virtual architecture through which see instruction
execution considering what is in there for us and what system requires for itself.
The observation is rather pessimistic. We have briefly demonstrated what simplest
architecture if carefully designed can give regarding performance, reliability and
energy efficiency AT THE SAME TIME ! Regarding distributed systems we show
that Amdahl Law is also very overoptimistic mostly serves to promote parallel
architectures and distributed systems. Simple model that we have explained for
kids from British primary school and even did field study with them so-called
“fence model” made clear that the limit of performance or simply overall
reasonably good design and is unachievable until we start rethink the whole
architecture and its main element interaction - human, hardware and system
software together, pursuing three non-functional requirements performance,
reliability an energy efficiency in concert