A Podcast for HPC Folk

A Podcast for HPC Folk

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RCE 118: MEEP

Brock Palen and Jeff Squyres speak with

Dr. Steven G. Johnson and Dr. Ardavan Oskooi about MEEP a free finite-difference time-domain (FDTD) software for electromagnetic simulations.

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Steven G. Johnson is a Professor of Applied Mathematics and Physics at MIT. He works in the field of nanophotonics—electromagnetism in media structured on the wavelength scale, especially in the infrared and optical regimes—where he works on many aspects of the theory, design, and computational modeling of nanophotonic devices, both classical and quantum. He is coauthor of over 200 papers and over 25 patents, including the second edition of the textbook Photonic Crystals: Molding the Flow of Light. In addition to traditional publications, he distributes several widely used free-software packages for scientific computation, including the MPB and Meep electromagnetic simulation tools and the FFTW fast Fourier transform library (for which he received the 1999 J. H. Wilkinson Prize for Numerical Software).

Ardavan Oskooi is the Founder/CEO of Simpetus, a San Francisco based startup with a mission to propel simulations to the forefront of research and development in electromagnetics. Simpetus is a reference to our vision for simulations being an impetus for new discoveries and technologies. Ardavan received his Sc.D. from MIT where he worked with Professor Steven G. Johnson (thesis: Computation & Design for Nanophotonics) to develop Meep. Ardavan has published 13 first-author articles in peer-reviewed journals and a book "Advances in FDTD Computational Electrodynamics: Photonics and Nanotechnology". Ardavan has a master in Computation for Design and Optimization from MIT and completed his undergraduate studies, with honors, in Engineering Science at the University of Toronto. Prior to launching Simpetus, Ardavan worked as a postdoctoral researcher with Professors Susumu Noda at Kyoto University and Stephen R. Forrest at the University of Michigan on leveraging Meep to push the frontier of optoelectronic device design.

RCE 117: MEEP

Brock Palen and Jeff Squyres speak with

Dr. Steven G. Johnson and Dr. Ardavan Oskooi about MEEP a free finite-difference time-domain (FDTD) software for electromagnetic simulations.

MP3 (Right Click Save As)


Steven G. Johnson is a Professor of Applied Mathematics and Physics at MIT. He works in the field of nanophotonics—electromagnetism in media structured on the wavelength scale, especially in the infrared and optical regimes—where he works on many aspects of the theory, design, and computational modeling of nanophotonic devices, both classical and quantum. He is coauthor of over 200 papers and over 25 patents, including the second edition of the textbook Photonic Crystals: Molding the Flow of Light. In addition to traditional publications, he distributes several widely used free-software packages for scientific computation, including the MPB and Meep electromagnetic simulation tools and the FFTW fast Fourier transform library (for which he received the 1999 J. H. Wilkinson Prize for Numerical Software).

Ardavan Oskooi is the Founder/CEO of Simpetus, a San Francisco based startup with a mission to propel simulations to the forefront of research and development in electromagnetics. Simpetus is a reference to our vision for simulations being an impetus for new discoveries and technologies. Ardavan received his Sc.D. from MIT where he worked with Professor Steven G. Johnson (thesis: Computation & Design for Nanophotonics) to develop Meep. Ardavan has published 13 first-author articles in peer-reviewed journals and a book "Advances in FDTD Computational Electrodynamics: Photonics and Nanotechnology". Ardavan has a master in Computation for Design and Optimization from MIT and completed his undergraduate studies, with honors, in Engineering Science at the University of Toronto. Prior to launching Simpetus, Ardavan worked as a postdoctoral researcher with Professors Susumu Noda at Kyoto University and Stephen R. Forrest at the University of Michigan on leveraging Meep to push the frontier of optoelectronic device design.

RCE 117: PMIx

PMIx

Brock Palen and Jeff Squyres speak with Ralph Castain about PMIx. The Process Management Interface (PMI) has been used for quite some time as a means of exchanging wireup information needed for interprocess communication. Two versions (PMI-1 and PMI-2) have been released as part of the MPICH effort. While PMI-2 demonstrates better scaling properties than its PMI-1 predecessor, attaining rapid launch and wireup of the roughly 1M processes executing across 100k nodes expected for exascale operations remains challenging.

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Dr. Ralph H. Castain is a Principal Engineer at Intel, where he focuses on the development of control system technologies for exascale computing systems. Dr. Castain received his B.S. degree in physics from Harvey Mudd College and multiple graduate level degrees (M.S. in solid-state physics, M.S.E.E. degree in robotics, and Ph.D. in nuclear physics) from Purdue University. He has served in government, academia, and industry for over 30 years as a contributing scientist and business leader in fields ranging from HPC to nuclear physics, particle accelerator design, remote sensing, autonomous pattern recognition, and decision analysis. He currently is the founder and leader of the PMIx community (https://pmix.github.io/pmix)

RCE 116: Jupyter

Jupyter

Brock Palen and Jeff Squyres speak with Dr. Brian Granger about Jupyter. Jupyter is a non-profit, open-source project, born out of the IPython Project in 2014 as it evolved to support interactive data science and scientific computing across all programming languages. Jupyter will always be 100% open-source software, free for all to use and released under the liberal terms of the modified BSD license.

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Brian Granger is an associate professor of physics and data science at Cal Poly State University in San Luis Obispo, CA. His research focuses on building open-source tools for interactive computing, data science, and data visualization. Brian is a leader of the IPython project, co-founder of Project Jupyter, co-founder of the Altair project for statistical visualization, and an active contributor to a number of other open-source projects focused on data science in Python. He is an advisory board member of NumFOCUS and a faculty fellow of the Cal Poly Center for Innovation and Entrepreneurship.

RCE 115: PBS Professional

PBS Pro

Brock Palen and Jeff Squyres speak with Dr. Bill Nitzberg about PBS Professional. PBS Pro software optimizes job scheduling and workload management in high-performance computing (HPC) environments – clusters, clouds, and supercomputers – improving system efficiency and people’s productivity. Built by HPC people for HPC people, PBS Pro is fast, scalable, secure, and resilient, and supports all modern infrastructure, middleware, and applications. In June 2016, PBS Pro was released under a dual-licensing model, and is now available both commercially licensed and under an OSI-approved open source license.

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Dr. Bill Nitzberg is the CTO of PBS Works at Altair and “acting” community manager for the PBS Pro Open Source Project (www.pbspro.org). With over 25 years in the computer industry, spanning commercial software development to high-performance computing research, Dr. Nitzberg is an internationally recognized expert in parallel and distributed computing. Dr. Nitzberg served on the board of the Open Grid Forum, co-architected NASA’s Information Power Grid, edited the MPI-2 I/O standard, and has published numerous papers on distributed shared memory, parallel I/O, PC clustering, job scheduling, and cloud computing. When not focused on HPC, Bill tries to improve his running economy for his long-distance running adventures.

RCE 114: NetCDF

Brock Palen and Jeff Squyres speak with the authors of NetCDF. NetCDF is a set of software libraries and self-describing, machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data.

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Russ Rew is a semi-retired computer scientist who helped develop and lead several open software projects at UCAR/Unidata since the late 1980's, including netCDF. He has served as a member of the Governance Panel for the CF Conventions, an international standard for earth science metadata. He resides in Boulder with his wife Juli, who publishes ThirdFlatiron Anthologies containing short science fiction, fantasy, and humor submissions. He enjoys craft microbrews, corgis, mathematics, cosmology, and riding and periodically crashing his bicycle.

Ward Fisher is a computer scientist with a background in machine learning and computer vision. He has been at Unidata/UCAR since 2012, working on the netCDF project as well as various cloud initiatives at Unidata. He lives in Colorado with his wife Kelly and son Sammy, and spend much of their time either in the mountains or in Denver. Besides writing scientific software, he is exploring 3d printing and emerging VR/AR technologies.

RCE 113: Shifter

Shifter

Brock Palen and Jeff Squyres speak with the authors of Shifter. Shifter is a prototype implementation that NERSC is developing and experimenting with as a scalable way of deploying containers in an HPC environment. It works by converting user or staff generated images in Docker, Virtual Machines, or CHOS (another method for delivering flexible environments) to a common format. This common format then provides a tunable point to allow images to be scalably distributed on the Cray supercomputers at NERSC. The user interface to shifter enables a user to select an image from their dockerhub account and then submit jobs which run entirely within the container.

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RCE 112: Stanford Center for Reproducible Neuroscience

CRN

Brock Palen and Jeff Squyres speak with the Stanford Center for Reproducible Neuroscience.

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Chris Gorgolewski is a co-director of the Stanford Center for Reproducible Neuroscience and a research associate at Stanford University, California, USA. He is interested in enabling new discoveries in human neuroscience by building data-sharing and analysis tools and services, as well as establishing new data standards and data-sharing policies.

RCE 111: Deal.II

Dea.II

Brock Palen and Jeff Squyres speak with the creators of Deal.II an open source finite element library.

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Wolfgang Bangerth is a computational scientist and a professor of mathematics at Colorado State University. He is the founder and one of the current principal maintainers of the deal.II software library that provides everything you need to build finite element applications, including meshes, linear algebra functionality, a zoo of finite elements, and support from laptops to supercomputers with 100,000s of cores. With Timo Heister, he also started and is one of the current maintainers of the ASPECT code used to simulate convection in the Earth interior.

Timo Heister is an assistant professor in mathematical sciences at Clemson University in South Carolina. His research interests are in computational mathematics centered around the finite element method with focus on adaptive mesh refinement, parallel solvers, and applications to fluid dynamics and geophysics. He is one of the principal maintainers of the deal.II finite element library and involved in several other open source scientific software projects.

 
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