August 10, 2008

Resume Hans de Vries

 

 by Hans de Vries 

 

 

    2007-Now:    Graduate University textbook on Relativistic Quantum Field Fheory

Some parts of my graduate text book (in progress) are available online:    


Physics-Quest

Understanding Relativistic Quantum Field Theory

           Part I   Relativistic foundations of light and matter Fields
                Chapter 1:    Elementary solutions of the classical wave equation 
                Chapter 2:    Lorentz contraction from the classical wave equation
                Chapter 3:    Time dilation from the classical wave equation         
                Chapter 4:    Non-simultaneity from the classical wave equation
.
           Part II   Advanced treatment of the EM field
                Chapter 5:    Relativistic formulation of the electromagnetic field
                Chapter 6:    The Chern-Simons EM spin and axial current density
                Chapter 7:    The EM stress energy tensor and spin tensor  
                Chapter 8:    Advanced EM treatment of Spin 1/2 fermions  
.
           Part III   The relativistic matter wave equations
                Chapter 9:     Relativistic matter waves from Klein Gordon's equation
                Chapter 10:   The Poincare group and relativistic wave functions
                Chapter 11:   The Dirac Equation 
                Chapter 12:   Transformations of the bilinear fields of the Dirac electron
                Chapter 13:   Gordon decomposition of the vector/axial currents
                Chapter 14:   Operators and Observables of the Dirac field
                Chapter 15:   The EM interactions with the Dirac field
                Chapter 16:   The Hamiltonian and Lagrangian densities 
.
           Part IV   Foundations of Quantum Electro Dynamics
                Chapter 17:   Propagation from the interaction term
                Chapter 18:   Interference currents from transitions
                Chapter 19:   Decay rates and Cross sections
                Chapter 20:   Feynman rules and diagrams of QED
                Chapter 21:   Elementary QED scattering processes
                Chapter 22:   Higher order Feynman diagrams
.
           Part V   Non Abelian gauge theories
                Chapter 23:   The Electroweak theory
                Chapter 24:   The Electroweak interactions with quarks
                Chapter 25:   Quantum Chromo Dynamics

Physics-Quest


     2001-2006:    Third generation GPGPU stream processor:   GenTera  MT3  -  Imagine 3

 


As VP of engineering and lead architect I was reponsible for the MT3.
---------
A third generation GPGPU processor integrating
Streaming SIMD Floating Point  cores
and
Open GL compatible
3D graphics pipelines with
numerous medical volume rendering extensions,

 Fully integrated Video I/O, Audio I/O and legacy IO
- First silicon was achieved in 2006 -
  
Click on the images for some presentations:

MT3 overview


 

HISC pyramid


 

      2001-2006 Derivatives of Imagine I     

Numerous companies use derivatives of the original Imagine processor
which I designed as the Lead Architect.
One of the latest incarnations is the XTrillion 3.0

- The XTrillion 3.0  is an 8 Core multiprocessor for Medical Applications -



XTrillion 3.0

     1996 - 2000    Second generation GPGPU stream processor:   Arcobel Graphics / GenTera  Imagine 2

 ---------------------------

---------

The MT2 was our second generation GPGPU processor .
---------
It had a full hardware implementations of Open GL compatible 3D graphics pipelines.
Advanced Floating point  support was added throughout the architecture.
including fully pipelined 32 bit Floating Point Transcendental functions.

---------

---------------------------

3D Graphics Pipeline

 

Advanced Floating Point units
---------
---------

    

     1991-1995    Arcobel Graphics  - Imagine 1:    Worlds First single chip GPGPU stream processor

As founder and  technical director of Arcobel Graphics I was responsible
for the design of the Imagine 1 graphics and Image processor.

- It was the fastest 3D graphics processor on the market when it was released. -

It could both function as a stream processor as well as a
RISC processor executing C code

Imagine 1 - graphics and image processor


Imagine 1 graphics and image processor
---------
---------
1987-1990     DTN:   3D Graphics and Image processing Systollic Array board  


---------

As  technical director of Dataflow Technology I designed the
3D graphics and Image processing systolic array board.
---------
It had a camara input which we used to capture the public during presentations
to show them live texture mapped on moving and rotating 3D graphics objects.
---------
Up to four boards, each with 4 PCB's could cooperate as a multiprocessing system
with a shared graphics memory of up tp 64 Megabytes which was very
large those days, consisting out of 1024 DRAM and VRAM chips
---------

3D graphics and Image processing board
http://chip-architect.com/SystollicArrayProcessor.pdf

---------

     1987-1990     DTN:   Dataflow processor  

 1988-1990  Technical Director of Dataflow Technology Nederland

---------

The company DTN was a management buy out from Philips and its goals 

were to develop and commercialize "fifth generation" computers. 

---------

The company was partly funded by governments grants. 

Fifth generation computers were a very hot item these days. 

There was for the first time a notion that  computers would become

large massively parallel processing engines.

.---------

Many often radically different architectures were considered to harness 

all the processing power which would become available.

The general expectation was that progress would come from applying new 

programming languages, advanced compilers, new computer architectures

together with inter connection systems.

.---------


DTN dataflow computer

        ---------

 

  Article about the DTN Dataflow Computer in Dutch

 

  

The RC compiler for the DTN dataflow computer

Journal of Parallel and Distributed Computing
Volume 10, Issue 4,   December 1990, Pages 319-332

Arthur H. Veen and Reinier Van Den Born

Parallel Computing, Postbus 16775, 1001, RG Amsterdam, The Netherlands

Abstract

The DTN Dataflow Computer is a graphics workstation containing 32 dataflow processing elements. It may possibly be the first commercially available dataflow machine. In this article our main focus is on its RC compiler. Although dataflow machines are usually programmed in a declarative language, RC is imperative: it is a somewhat restricted form of C. 

     

 

Regards, Hans

 

 

 

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