• Like
Seminar 12-11-19
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Seminar 12-11-19


Presentation Slides by Pipat Methavanitpong about the author for Seminar class Nov 19, 2012 at Kunieda-Isshiki Laboratory, Tokyo Institute of Technology.

Presentation Slides by Pipat Methavanitpong about the author for Seminar class Nov 19, 2012 at Kunieda-Isshiki Laboratory, Tokyo Institute of Technology.

Published in Career
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads


Total Views
On SlideShare
From Embeds
Number of Embeds



Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

    No notes for slide


  • 1. Pipat Methavanitpong (M1) November 19, 2012
  • 2. OUTLINEMeFractional-order Sinusoidal OscillatorFaster Microprocessors
  • 3. ME <= Name: Pipat Methavanitpong  Skills: have experienced many Nationality: Thailand programming languages both H/L level Graduated from: SIIT, Thammasat  [Experience does not mean University in 2012 proficiency]  Electronic and Communication  MATLAB, SIMULINK, OrCAD, Engineering LabView  Senior Project – Fractional-order  68HC11, 8086, Arduino, PLC Sinusoidal Oscillator  C, C#, Java, Groovy, SQL, HTML, Work Experience: none CSS, PHP, VHDL, Flex Internship Experience: YES!!  Goal: Develop faster CPU than others in  NECTEC Integrated Circuit the market Development Section  My Current Work: Support Surachai-san  Basic SystemC Syntax developing Dalvik extension to Lab’s  Silicon Craft TCT processor  Basic SRAM Schematic
  • 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
  • 7. FRACTIONAL-ORDER SINUSOIDAL OSCILLATOR 1 level (LPF) 8 levels 12 levels More levels -> More bandwidth
  • 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