russell j. hewett

assistant professor

mathematics & CMDA

Joining My Research Group

Pay attention to this space for research opportunities. I will post them here as they arise.

Postdocs: I have no current openings. Occasional funding for teaching postdocs may be available through the department. Contact me if interested.

Grad students: Current VT MS and PhD students who are interested in working with me should contact me by e-mail to setup a meeting with me. Prospective graduate students should also contact me to alert me to their application to VT.

Undergrads: I occasionally have space for undergrad researchers. I encourage CMDA students who want to do research with me to do well in CMDA 3634, with me (preferred) or with another instructor.

computational machine learning & inverse problems group

group members

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Russell J. Hewett

principle investigator

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Joe Weissman

graduate student

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ThaoVy Nguyen

graduate student

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Daniel Hajialigol

undergraduate student

group alumni

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Jacob Merizian

undergraduate student

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Thomas Grady

undergraduate student

research projects

Distributed Deep Learning

DistDL, Model parallelism, software, and more

High-frequency Helmholtz

3D sweeping pre-conditioners, parallelism, and more

Solar Data Analysis

Solar Data Analysis, often with Python and SunPy

Solar Tomography

Numerics and 3D reconstructions of the solar atmosphere

Subsurface Imaging

PySIT, wave propagation, FWI, and more

recent publications

We present the first fast solver for the high-frequency Helmholtz equation that scales optimally in parallel, for a single right-hand …

DistDL is a Python package for model parallel deep learning in PyTorch.

The SunPy Project developed a 13-question survey to understand the software and hardware usage of the solar-physics community. Of the …

recent & upcoming talks

Training deep neural networks (DNNs) in large-cluster computing environments is increasingly necessary, as networks grow in size and …

Training deep neural networks (DNNs) in large-cluster computing environments is increasingly necessary, as networks grow in size and …

While it is theoretically and computationally advantageous to pose the inverse problem of subsurface recovery in the frequency domain, …