NCSA Scientist Employs Supercomputer Simulations in Ohio Gerrymandering Case

May 13, 2019

May 13, 2019 — Last week, a decision on a case in Ohio’s Sixth District Court may have signaled a shift in the way electoral maps are drawn in the state, and furthermore, may have ramifications for redistricting cases at the national level. A lawsuit filed in the Southern District of Ohio by the American Civil Liberties Union (ACLU) and the League of Women Voters (LWV) challenged the Ohio congressional electoral map, drawn in 2011, alleging that it was an unconstitutional partisan gerrymander.

States have the constitutional authority to draw their electoral maps, but their power is not unfettered. Partisanship is always part of the process, but “excessive” use of partisanship is unconstitutional. How one assesses excessiveness, however, is unclear.

That’s where Wendy Cho comes in.

Dr. Wendy K. Tam Cho, a professor of Political Science, Statistics, Mathematics, Asian American Studies and Law at the University of Illinois at Urbana-Champaign and a Senior Research Scientist at the National Center for Supercomputing Applications (NCSA), uses the Blue Waters supercomputer to analyze electoral maps. During the trial, which concluded in March, Cho was called as an expert witness for the case where she presented an analysis based on more than 3 million simulations of possible electoral maps for Ohio. These simulations helped the court in assessing how likely and how much partisanship was part of the map-drawing process.

“The argument is based on probability and is similar to how we understand whether a coin is fair,” said Cho “If we toss a coin many times and the counts of heads and tails are not roughly the same, we have evidence of an unfair coin.”

Cho uses a similar process but instead of tossing a coin many times to understand the behavior of a fair coin, she creates many maps to help judges understand the characteristics of electoral maps that emerge from processes that are not imbued with excessive partisan considerations.

Cho’s work creating millions of map-drawing simulations uses a novel Evolutionary Markov Chain Monte Carlo (EMCMC) algorithm to produce an array of map scenarios that can be compared to the current map. She advocates using this type of analysis in court to help judges assess whether the partisan considerations are “excessive,” and thus, unconstitutional.

“We designed the algorithm to take advantage of Blue Waters’s massively parallel architecture,” said Cho. “Blue Waters allows us to create a very large number of maps, which is necessary to gain a good sense of the characteristics of the underlying map-drawing process.”

Cho’s research using the Blue Waters system to gauge partisanship in electoral district maps has achieved national coverage in publications like WiredVox, and The Washington Post.

On May 3, a panel of three judges ruled that the Ohio congressional map is unconstitutional, and mandated the state of Ohio to redraw the map by June 14. Outside of that explicit ruling, however, the ultimate outcome for Ohio has several additional hurdles to overcome.

“Typically, what happens from here is that the case will be appealed to the Supreme Court. The defendants have already filed a motion to halt the redrawing of the lines pending an appeal.”

The process of identifying partisan map-drawing is a long one, but there is no doubt that Cho’s research with supercomputers is making a difference in our democratic system of governance.

About Blue Waters

Blue Waters is one of the most powerful supercomputers in the world, and is the fastest supercomputer on a university campus, with more aggregate memory and data capabilities than any other openly available resource. Scientists and engineers across the country use the computing and data power of Blue Waters to tackle a wide range of challenging problems, from predicting the behavior of complex biological systems to simulating the evolution of the cosmos. Blue Waters is supported by the National Science Foundation (NSF) and the National Center for Supercomputing Applications (NCSA) at the University of Illinois.

Blue Waters is supported by the National Science Foundation through awards ACI-0725070 and ACI-1238993.

About NCSA

The National Center for Supercomputing Applications (NCSA) at the University of Illinois at Urbana-Champaign provides supercomputing and advanced digital resources for the nation’s science enterprise. At NCSA, University of Illinois faculty, staff, students, and collaborators from around the globe use advanced digital resources to address research grand challenges for the benefit of science and society. NCSA has been advancing one-third of the Fortune 50 for more than 30 years by bringing industry, researchers, and students together to solve grand challenges at rapid speed and scale.


Source: NCSA

Subscribe to HPCwire's Weekly Update!

Be the most informed person in the room! Stay ahead of the tech trends with industy updates delivered to you every week!

GTC21: Dell Building Cloud Native Supercomputers at U Cambridge and Durham

April 14, 2021

In conjunction with GTC21, Dell Technologies today announced new supercomputers at universities across DiRAC (Distributed Research utilizing Advanced Computing) in the UK with plans to explore use of Nvidia BlueField DPU Read more…

The Role and Potential of CPUs in Deep Learning

April 14, 2021

Deep learning (DL) applications have unique architectural characteristics and efficiency requirements. Hence, the choice of computing system has a profound impact on how large a piece of the DL pie a user can finally enj Read more…

GTC21: Nvidia Launches cuQuantum; Dips a Toe in Quantum Computing

April 13, 2021

Yesterday Nvidia officially dipped a toe into quantum computing with the launch of cuQuantum SDK, a development platform for simulating quantum circuits on GPU-accelerated systems. As Nvidia CEO Jensen Huang emphasized i Read more…

Nvidia Aims Clara Healthcare at Drug Discovery, Imaging via DGX

April 12, 2021

Nvidia Corp. continues to expand its Clara healthcare platform with the addition of computational drug discovery and medical imaging tools based on its DGX A100 platform, related InfiniBand networking and its AGX develop Read more…

Nvidia Serves Up Its First Arm Datacenter CPU ‘Grace’ During Kitchen Keynote

April 12, 2021

Today at Nvidia’s annual spring GPU technology conference, held virtually once more due to the ongoing pandemic, the company announced its first ever Arm-based CPU, called Grace in honor of the famous American programmer Grace Hopper. Read more…

AWS Solution Channel

Volkswagen Passenger Cars Uses NICE DCV for High-Performance 3D Remote Visualization

 

Volkswagen Passenger Cars has been one of the world’s largest car manufacturers for over 70 years. The company delivers more than 6 million automobiles to global customers every year, from 50 production locations on five continents. Read more…

Nvidia Debuts BlueField-3 – Its Next DPU with Big Plans for an Expanded Role

April 12, 2021

Nvidia today announced its next generation data processing unit (DPU) – BlueField-3 – adding more substance to its evolving concept of the DPU as a full-fledged partner to CPUs and GPUs in delivering advanced computi Read more…

GTC21: Dell Building Cloud Native Supercomputers at U Cambridge and Durham

April 14, 2021

In conjunction with GTC21, Dell Technologies today announced new supercomputers at universities across DiRAC (Distributed Research utilizing Advanced Computing) Read more…

The Role and Potential of CPUs in Deep Learning

April 14, 2021

Deep learning (DL) applications have unique architectural characteristics and efficiency requirements. Hence, the choice of computing system has a profound impa Read more…

Nvidia Serves Up Its First Arm Datacenter CPU ‘Grace’ During Kitchen Keynote

April 12, 2021

Today at Nvidia’s annual spring GPU technology conference, held virtually once more due to the ongoing pandemic, the company announced its first ever Arm-based CPU, called Grace in honor of the famous American programmer Grace Hopper. Read more…

Nvidia Debuts BlueField-3 – Its Next DPU with Big Plans for an Expanded Role

April 12, 2021

Nvidia today announced its next generation data processing unit (DPU) – BlueField-3 – adding more substance to its evolving concept of the DPU as a full-fle Read more…

Nvidia’s Newly DPU-Enabled SuperPod Is a Multi-Tenant, Cloud-Native Supercomputer

April 12, 2021

At GTC 2021, Nvidia has announced an upgraded iteration of its DGX SuperPods, calling the new offering “the first cloud-native, multi-tenant supercomputer.” Read more…

Tune in to Watch Nvidia’s GTC21 Keynote with Jensen Huang – Recording Now Available

April 12, 2021

Join HPCwire right here on Monday, April 12, at 8:30 am PT to see the Nvidia GTC21 keynote from Nvidia’s CEO, Jensen Huang, livestreamed in its entirety. Hosted by HPCwire, you can click to join the Huang keynote on our livestream to hear Nvidia’s expected news and... Read more…

The US Places Seven Additional Chinese Supercomputing Entities on Blacklist

April 8, 2021

As tensions between the U.S. and China continue to simmer, the U.S. government today added seven Chinese supercomputing entities to an economic blacklist. The U Read more…

Habana’s AI Silicon Comes to San Diego Supercomputer Center

April 8, 2021

Habana Labs, an Intel-owned AI company, has partnered with server maker Supermicro to provide high-performance, high-efficiency AI computing in the form of new Read more…

Julia Update: Adoption Keeps Climbing; Is It a Python Challenger?

January 13, 2021

The rapid adoption of Julia, the open source, high level programing language with roots at MIT, shows no sign of slowing according to data from Julialang.org. I Read more…

Intel Launches 10nm ‘Ice Lake’ Datacenter CPU with Up to 40 Cores

April 6, 2021

The wait is over. Today Intel officially launched its 10nm datacenter CPU, the third-generation Intel Xeon Scalable processor, codenamed Ice Lake. With up to 40 Read more…

CERN Is Betting Big on Exascale

April 1, 2021

The European Organization for Nuclear Research (CERN) involves 23 countries, 15,000 researchers, billions of dollars a year, and the biggest machine in the worl Read more…

Programming the Soon-to-Be World’s Fastest Supercomputer, Frontier

January 5, 2021

What’s it like designing an app for the world’s fastest supercomputer, set to come online in the United States in 2021? The University of Delaware’s Sunita Chandrasekaran is leading an elite international team in just that task. Chandrasekaran, assistant professor of computer and information sciences, recently was named... Read more…

HPE Launches Storage Line Loaded with IBM’s Spectrum Scale File System

April 6, 2021

HPE today launched a new family of storage solutions bundled with IBM’s Spectrum Scale Erasure Code Edition parallel file system (description below) and featu Read more…

10nm, 7nm, 5nm…. Should the Chip Nanometer Metric Be Replaced?

June 1, 2020

The biggest cool factor in server chips is the nanometer. AMD beating Intel to a CPU built on a 7nm process node* – with 5nm and 3nm on the way – has been i Read more…

Saudi Aramco Unveils Dammam 7, Its New Top Ten Supercomputer

January 21, 2021

By revenue, oil and gas giant Saudi Aramco is one of the largest companies in the world, and it has historically employed commensurate amounts of supercomputing Read more…

Quantum Computer Start-up IonQ Plans IPO via SPAC

March 8, 2021

IonQ, a Maryland-based quantum computing start-up working with ion trap technology, plans to go public via a Special Purpose Acquisition Company (SPAC) merger a Read more…

Leading Solution Providers

Contributors

Can Deep Learning Replace Numerical Weather Prediction?

March 3, 2021

Numerical weather prediction (NWP) is a mainstay of supercomputing. Some of the first applications of the first supercomputers dealt with climate modeling, and Read more…

Livermore’s El Capitan Supercomputer to Debut HPE ‘Rabbit’ Near Node Local Storage

February 18, 2021

A near node local storage innovation called Rabbit factored heavily into Lawrence Livermore National Laboratory’s decision to select Cray’s proposal for its CORAL-2 machine, the lab’s first exascale-class supercomputer, El Capitan. Details of this new storage technology were revealed... Read more…

New Deep Learning Algorithm Solves Rubik’s Cube

July 25, 2018

Solving (and attempting to solve) Rubik’s Cube has delighted millions of puzzle lovers since 1974 when the cube was invented by Hungarian sculptor and archite Read more…

African Supercomputing Center Inaugurates ‘Toubkal,’ Most Powerful Supercomputer on the Continent

February 25, 2021

Historically, Africa hasn’t exactly been synonymous with supercomputing. There are only a handful of supercomputers on the continent, with few ranking on the Read more…

The History of Supercomputing vs. COVID-19

March 9, 2021

The COVID-19 pandemic poses a greater challenge to the high-performance computing community than any before. HPCwire's coverage of the supercomputing response t Read more…

AMD Launches Epyc ‘Milan’ with 19 SKUs for HPC, Enterprise and Hyperscale

March 15, 2021

At a virtual launch event held today (Monday), AMD revealed its third-generation Epyc “Milan” CPU lineup: a set of 19 SKUs -- including the flagship 64-core, 280-watt 7763 part --  aimed at HPC, enterprise and cloud workloads. Notably, the third-gen Epyc Milan chips achieve 19 percent... Read more…

HPE Names Justin Hotard New HPC Chief as Pete Ungaro Departs

March 2, 2021

HPE CEO Antonio Neri announced today (March 2, 2021) the appointment of Justin Hotard as general manager of HPC, mission critical solutions and labs, effective Read more…

Microsoft, HPE Bringing AI, Edge, Cloud to Earth Orbit in Preparation for Mars Missions

February 12, 2021

The International Space Station will soon get a delivery of powerful AI, edge and cloud computing tools from HPE and Microsoft Azure to expand technology experi Read more…

  • arrow
  • Click Here for More Headlines
  • arrow
HPCwire