
Education Details
BSc (Hons.) Physical Electronics (1st class) from University of Southampton , UK, Sept. 1974 – July 1977
Subjects included quantum, laser, and semiconductor physics; engineering mathematics, including non -linear partial differential
equations; electromagnetic theory.
PhD Laser Physics from University of Southampton, UK, Sept. 1977 – Jan. 1981
Thesis title: 'Analysis of Methods for Spatial and Temporal Confinement in Non -linear Optics'. Subjects included Maxwell-
Bloch equations of Stimulated Raman Scattering with a pulsed, focused pump beam; variational calculus and Hilbert -Space
methods applied to EM beam propagation in non -linear media; stochastic processes, especially in collision-induced broadening
in non-linear optical processes; Raman scattering in optical fibers; numerical computation in Pascal and Fortran of Hilbert -Space
matrix elements, and EM propagation in inhomogeneous media.
Employment History
Staff Engineer, AI tools April 2019 – present
Qualcomm Innovation Center, 9600 North Mopac Expressway #900, Austin, TX 78759, USA & Remote
Broadly, I help make pre-trained deep-learning models such as Inception, Resnet, and Mobilenet run faster on Qualcomm
hardware. I worked on integration of Qualcomm’s QNN framework with TVM / python, writing operators and schedules in
TVM, and importing the TVM-compiled code into QNN. More recently I write operators in C++ / assembly tailored to
Qualcomm hardware (specifically: HVX vector / DSP processor, & HMX matrix / convolution pipeline processor) that are
callable from TVM / python. We use git, jira, Atlassian Confluence, and Workfront in a CICD pipeline with check-in builders
and testing. The emphasis is on rapid inference rather than training , though to evaluate performance I also build, train and execute
custom Tensorflow models on Qualcomm hardware via Android. Principle computation tools are Python, TVM, C, C++, asm,
bash scripts, Tensorflow, and some SQL.
Senior Research Physicist October 1997 – December 2018
Institute for Advanced Studies at Austin, 11855 Research Boulevard, Austin, TX 78759, USA
IASA was a not-for-profit research institution funded by a private charity in Europe with a mandate to explore novel ideas in
physics. I worked in collaboration with a partner institution in Toronto, performing theoretical and experimental investigations
of variants of standard physical models, primarily Special and General Relativity, and Electrodynamics. Of particular interest
were Direct Particle Interaction / field-free variants of electrodynamics. There was some overlap with GR in part due to post -
recombination EM coupling that theory necessarily entails. I was the PI for a lab experiment to test a variant of Modified
Newtonian Dynamics (MOND), and supervised others performing the numerical analysis. In 2005 Anthony Lasenby (University
of Cambridge, UK) and I were commissioned by Wiley to write a book on Direct Particle Interaction. An outcome of that effort
was the discovery of an EM foundation of Dirac Theory, a summary of which is presently under review at Foundations of Physics.
Please see the list of publications and conference presentations for this and other work undertaken at IASA. Topics include
Cosmological metrics, tensor calculus, functional analysis, Clifford Algebra, Dirac Theory, Cherenkov cones, and spinor
representations of EM fields. Principle computation tools were Maple, C, VBnet, Matlab, Labview, OpenCV and SDL. Principle
mathematical techniques employed include stochastic dynamics; differential and integral tensor calculus on manifolds; coupled
differential systems, Hilbert space representations; functional analysis; Clifford, spinor, and quaternion algebra; other aspects
of linear algebra, including singular-value decomposition.