Presentation Slides by Pipat Methavanitpong about the author for Seminar class Nov 19, 2012 at Kunieda-Isshiki Laboratory, Tokyo Institute of Technology.
5. FRACTIONAL-ORDER SINUSOIDAL OSCILLATOR
What I did
Follow Elwakil’s work
he provides generalization of design of n-
fractional-order devices oscillator
The only HOPE for my graduation!!
Literature review on Fractional-order
devices
Implement this knowledge in my advisor’s
Current Tunable Sinusoidal Oscillator ’87
Result – It works and oscillates faster
BUT, still have not fully understood what
fractional-order calculus is
Very complex calculation
S. Pookaiyaudom, B. Srisuchinwong, and W. Kurutach,
“A Current-Tunable Sinusoidal Oscillator”, IEEE
Transactions on Instrumentation and Measurement, Vol.
IM-36, No. 3, September, pp. 725-729, Sep 1987.
6. FRACTIONAL-ORDER SINUSOIDAL OSCILLATOR
WHY none in market
Creation of these devices is
NOT FEASIBLE
Realization from a mesh of
recursive R and C structure
Require LARGE area to
make it near ideal
performance
5-level stage becomes this
mess
8. FRACTIONAL-ORDER SINUSOIDAL OSCILLATOR
HOPE, There is !
Such characteristic is found in organic things e.g.
There are reports of fabricated Si-devices for lab use.
An Advantage from this knowledge
More precise control on every conventional circuits
Faster oscillator
Better PID controller
Any rate of attenuation electronic filter
Greener electronic devices
9. FASTER MICROPROCESSORS
How to become FASTER
YIN / YANG
An Era of Parallel Computing
Combination Dedicated Functionalities
Dark Silicon Gap
10. FASTER MICROPROCESSORS
How to become FASTER
2 choices
Work HARDER – Overclocking, Brute-force
Work SMARTER – Better algorithms and management
11. FASTER MICROPROCESSORS
YIN / YANG
Everything has both advantages and disadvantages
Analog systems
No loss of data
Very sensitive to interference
Digital systems
Reconfigurable / Distortion Immunity
Limited Range of Data (freq range)
Smaller MOSFET
Faster / Lower power
Higher power density / Undeterministic Quantum Mechanic Behavior
Single Electron Transistor
Even lower power consumption
Blurred digital state
It is we, the engineers, whose task is to push through the limitation and shift to
new paradigm via BREAKTHROUGH
12. FASTER MICROPROCESSORS
An Era of Parallel Computing
We cannot keep clock frequency rising
Power consumption / Heat
Move to the new paradigm
Share works with friends
Teamwork is the key
Everybody may not be perfect
But, everybody can take part in a work
to get it done
But, as we know in every group work we
have faced as students, researchers,
employees, and etc.
Unfair work distribution – Better Arbiter
Waterfall workflow – Better Dataflow
Communication problem - NoC
The ANALOGY of modern
microprocessors is now same as
URBAN PLANNING
Transportation – Communication between modules
Company – Functionality
People - Data
13. FASTER MICROPROCESSORS
Combination Dedicated
Functionalities
One does not fit all
Give a right job to a right person
AMD APU – A combination of CPU
and GPU on a single chip
CPU – less core / more memory
Control intensive
GPU – more core / less memory
Computation intensive
CPU + FPGA – dynamic
functionalities
14. FASTER MICROPROCESSORS
Dark Silicon Gap
A term by H. Esmaeilzadeh etal. – Dark Silicon and the End of
Multicore Scaling ’12
Underutiliztion of transistor integration capacity
As a number of cores keep rising, the efficiency of utilization from
parallelization becomes WORST