[eas_cs_seminars] talk on the 7th of September

[Luca Rossi]

Hi all,

It is my pleasure to announce that on Thursday the *7th of September at 3pm*
Prof. Krishnamachar Sreenivasan (Central Institute of Technology,
Kokrajhar, Assam, India) will be giving a talk at Aston. The talk will be
held in *MB146*.

Details of the talk and a bio of Prof. Krishnamachar can be found below and
at https://cs.aston.ac.uk/seminars/

Best,
Luca

===

Title: Flow in Computer Systems

Abstract:
New lines of attack are required to design computers efficiently in view of
rapid advances in VLSI technology and increases in software complexity.
This note presents a novel approach of portraying computer job execution as
multi-phase single stream of instruction, data, and control competing for
hardware and software resources. Fluid flow methods, though appealing, are
limited to narrow range of problems. A theoretical treatment based on
stochastic processes, complemented by measurements is envisaged. Job flow
is frequently unstable and understanding factors that lead to flow
instability is essential to prevent frequent, annoying, occurrence of ‘Blue
screen’, a state, this analysis finds, is caused by eight factors. A job
flow Reynolds number, R, is defined as ratio of factors aiding job
execution to factors staunching job execution. Application layers
frequently employed to increase programmer productivity and advances in
computer design meant to exploit Instruction Level Parallelism are found to
decrease program performance.  Online Transaction Processing workload is
stable for values of R, greater than 0.8. Online Transaction Processing
Workload was used in controlled experiments to collect five sets of results
in which the single processor architectural speed varied from 3.10 to 3.41
cycles per instruction

Bio:
Ph.D. degree, University of Pennsylvania, Philadelphia, M.Sc. degree,
Indian Institute of Science, Bangalore. B.E. degree, University College of
Engineering [renamed as Visweswariah College of Engineering], University of
Mysore, Bangalore, India.
I have worked in Computer Industry since 1969 starting as a member of a
large team and retired as a Technical Leader of a large team.  I worked in
a Silicon Valley start-up but did not strike oil. My employers include
Indian Institute of Science, Univ. of Pennsylvania, MITRE (a MIT Lab),
Stanford Research Institute, General Electric, Ford Aerospace Corporation
(I worked on modeling INSAT satellite 1C),  Hewlett Packard Inc, Agilent,
IIT Guwahati, IIT Mandi, IIT Ropar. I was a Peace Corps Instructor, St.
Paul, Minnesota, teaching Kannada to US volunteers, a Red Cross disaster
recovery volunteer in the Bay Area, hosted a weekly Public Service Radio
Show in the Bay Area to aid Senior Citizens of mostly but not exclusively
of Indian origin, Taught Bridge to Senior Citizens in Palo Alto. Member of
Visweswariah College Water Polo Team, Table Tennis Champion at IISc, Penn
Faculty Squash Team, Corporal, National Cadet Corps, Won Tennis tournaments
in Palo Alto ( mixed doubles with my daughter, men’s doubles with my son,
and Senior Singles). I captained the IITG faculty cricket team and was the
‘man of the match’ when we defeated the graduate students. (It helps if the
umpire is in your class!) I was a judge at a GLOBAL INTEL Science
Competition for High School Students. I attend Emerson Tennis camps in the
hope of improving my back hand. I am an avid writer hoping to improve my
writing skill.   My letters to Editor appear regularly in the London
Financial Times, San Jose Mercury News, The Hindu. I lost my amateur status
when my article on ‘Aging in the Silicon Valley’ appeared in INDIA CURRENTS
published in the Bay Area. I started radio clubs in IIT Guwhati and Ropar.
I started the IIT Ropar Alumni cell in the Silicon Valley. I am working on
an IIT Ropar interdisciplinary effort to develop Bio-Digestors to remove
human waste in Indian bathrooms. I am leading a student project to apply
distributed computing principles to solve the sugar cane juicing challenges
faced by the Punjab Sugar Cane growers. I facebook and skype
enthusiastically but do not text nor twitter. I manage family and Alumni
Google groups.

Research Interests:
Measurements of traffic in Cloud Configurations,  Remote Measurements of
Wireless Communication Networks, Stochastic Differential Equations, Analogy
between Fluid Turbulence and Transaction flow in many core multiprocessor
caches, applying Boltzmann distinguishable particle distribution to cloud
networks, Virtualization systems to train Ambulance Drivers in the Tri-City
Area lead by PGIMER, Chandigarh.
-- 
Luca Rossi

Lecturer in Computer Science
School of Engineering and Applied Science
Aston University
Web: http://www.cs.aston.ac.uk/~rossil/ <http://www.cs.bham.ac.uk/~rossil/>
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