Inventor Claims to Have Solved Floating Point Error Problem

By Tiffany Trader

January 17, 2018

Editor’s note (Jan. 18): After this article was published, a number of readers raised concerns about the originality of Jorgensen’s techniques, noting the existence of prior art going back years. Specifically, there is precedent in John Gustafson’s work on unums and interval arithmetic both at Sun and in his 2015 book, The End of Error, which was published 19 months before Jorgensen’s patent application was filed. We appreciate having active and engaged readers who are forthcoming in adding important context.

“The decades-old floating point error problem has been solved,” proclaims a press release from inventor Alan Jorgensen. The computer scientist has filed for and received a patent for a “processor design, which allows representation of real numbers accurate to the last digit.” The patent (No. 9,817,662, “Apparatus for Calculating and Retaining a Bound on Error During Floating Point Operations and Methods Thereof”) was issued on November 14, 2017.

Alan Jorgensen

Jorgensen presents his bounded floating point system as “a game changer for the computing industry,” tackling a pernicious problem that (as he cites) has been implicated in catastrophic failures, including the 1991 Patriot missile failure, which resulted in 28 U.S. military deaths.

The inventor patented a process that addresses floating point errors by computing “two limits (or bounds) that contain the represented real number. These bounds are carried through successive calculations. When the calculated result is no longer sufficiently accurate the result is so marked, as are all further calculations made using that value.”

Jorgensen says the method performs in real time and can operate in conjunction with existing hardware and software. Also, converting between existing standardized floating point and this new bounded floating point format can be done with simple operations, he says.

Unreported floating point errors are relevant for highly compute-intensive functions, especially where accuracy and safety are paramount, such as weather prediction, GPS, autonomous vehicles and finance. Jorgenson claims that his system guarantees accuracy of floating point values to plus or minus one in the last digit.

The invention is said to provide error information with minimal impact to performance or memory space compared with current methods. “In the current art, static error analysis requires significant mathematical analysis and cannot determine actual error in real time,” reads a section of the patent. “This work must be done by highly skilled mathematician programmers. Therefore, error analysis is only used for critical projects because of the greatly increased cost and time required. In contrast, the present invention provides error computation in real time with, at most, a small increase in computation time and a small increase in the maximum number of bits available for the significand.”

Read the patent filing in-full here.

The abstract offers a few more details:

The apparatus and method for calculating and retaining a bound on error during floating point operations inserts an additional bounding field into the standard floating-point format that records the retained significant bits of the calculating with notification upon insufficient retention. The bounding field, which accounts for both rounding and cancellation errors, has two parts, the lost bits D Field and the accumulated rounding error R Field. The D Field states the number of bits in the floating point representation that are no longer meaningful. The bounds on the real value represented are determined from the truncated floating point value (first bound) and the addition of the error determined by the number of lost bits (second bound). The true, real value is absolutely contained by the first and second bounds. The allowed loss (optionally programmable) of significant bits provides a fail-safe, real-time notification of loss of significant bits.

According to Jorgensen’s LinkedIn profile, he has a PhD in Computer Science and is a part time instructor at the University of Nevada, Las Vegas (UNLV) where he teaches computer science to non-computer science students.

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!

University of Stuttgart Inaugurates ‘Hawk’ Supercomputer

February 20, 2020

This week, the new “Hawk” supercomputer was inaugurated in a ceremony at the High-Performance Computing Center of the University of Stuttgart (HLRS). Officials, scientists and other stakeholders celebrated the new sy Read more…

By Staff report

US to Triple Its Supercomputing Capacity for Weather and Climate with Two New Crays

February 20, 2020

The blizzard of news around the race for weather and climate supercomputing leadership continues. Just three days after the UK announced a £1.2 billion plan to build the world’s largest weather and climate supercomputer, the U.S. National Oceanic and Atmospheric Administration... Read more…

By Oliver Peckham

Indiana University Researchers Use Supercomputing to Model the State’s Largest Watershed

February 20, 2020

With water stressors on the rise, understanding and protecting water supplies is more important than ever. Now, a team of researchers from Indiana University has created a new climate change data portal to help Indianans Read more…

By Staff report

TACC – Supporting Portable, Reproducible, Computational Science with Containers

February 20, 2020

Researchers who use supercomputers for science typically don't limit themselves to one system. They move their projects to whatever resources are available, often using many different systems simultaneously, in their lab Read more…

By Aaron Dubrow

China Researchers Set Distance Record in Quantum Memory Entanglement

February 20, 2020

Efforts to develop the necessary capabilities for building a practical ‘quantum-based’ internet have been ongoing for years. One of the biggest challenges is being able to maintain and manage entanglement of remote q Read more…

By John Russell

AWS Solution Channel

Challenging the barriers to High Performance Computing in the Cloud

Cloud computing helps democratize High Performance Computing by placing powerful computational capabilities in the hands of more researchers, engineers, and organizations who may lack access to sufficient on-premises infrastructure. Read more…

IBM Accelerated Insights

Intelligent HPC – Keeping Hard Work at Bay(es)

Since the dawn of time, humans have looked for ways to make their lives easier. Over the centuries human ingenuity has given us inventions such as the wheel and simple machines – which help greatly with tasks that would otherwise be extremely laborious. Read more…

New Algorithm Allows PCs to Challenge HPC in Weather Forecasting

February 19, 2020

Accurate weather forecasting has, by and large, been situated squarely in the domain of high-performance computing – just this week, the UK announced a nearly $1.6 billion investment in the world’s largest supercompu Read more…

By Oliver Peckham

US to Triple Its Supercomputing Capacity for Weather and Climate with Two New Crays

February 20, 2020

The blizzard of news around the race for weather and climate supercomputing leadership continues. Just three days after the UK announced a £1.2 billion plan to build the world’s largest weather and climate supercomputer, the U.S. National Oceanic and Atmospheric Administration... Read more…

By Oliver Peckham

Japan’s AIST Benchmarks Intel Optane; Cites Benefit for HPC and AI

February 19, 2020

Last April Intel released its Optane Data Center Persistent Memory Module (DCPMM) – byte addressable nonvolatile memory – to increase main memory capacity a Read more…

By John Russell

UK Announces £1.2 Billion Weather and Climate Supercomputer

February 19, 2020

While the planet is heating up, so is the race for global leadership in weather and climate computing. In a bombshell announcement, the UK government revealed p Read more…

By Oliver Peckham

The Massive GPU Cloudburst Experiment Plays a Smaller, More Productive Encore

February 13, 2020

In November, researchers at the San Diego Supercomputer Center (SDSC) and the IceCube Particle Astrophysics Center (WIPAC) set out to break the internet – or Read more…

By Oliver Peckham

Eni to Retake Industry HPC Crown with Launch of HPC5

February 12, 2020

With the launch of its Dell-built HPC5 system, Italian energy company Eni regains its position atop the industrial supercomputing leaderboard. At 52-petaflops p Read more…

By Tiffany Trader

Trump Budget Proposal Again Slashes Science Spending

February 11, 2020

President Donald Trump’s FY2021 U.S. Budget, submitted to Congress this week, again slashes science spending. It’s a $4.8 trillion statement of priorities, Read more…

By John Russell

Policy: Republicans Eye Bigger Science Budgets; NSF Celebrates 70th, Names Idea Machine Winners

February 5, 2020

It’s a busy week for science policy. Yesterday, the National Science Foundation announced winners of its 2026 Idea Machine contest seeking directions for futu Read more…

By John Russell

Fujitsu A64FX Supercomputer to Be Deployed at Nagoya University This Summer

February 3, 2020

Japanese tech giant Fujitsu announced today that it will supply Nagoya University Information Technology Center with the first commercial supercomputer powered Read more…

By Tiffany Trader

Julia Programming’s Dramatic Rise in HPC and Elsewhere

January 14, 2020

Back in 2012 a paper by four computer scientists including Alan Edelman of MIT introduced Julia, A Fast Dynamic Language for Technical Computing. At the time, t Read more…

By John Russell

Cray, Fujitsu Both Bringing Fujitsu A64FX-based Supercomputers to Market in 2020

November 12, 2019

The number of top-tier HPC systems makers has shrunk due to a steady march of M&A activity, but there is increased diversity and choice of processing compon Read more…

By Tiffany Trader

SC19: IBM Changes Its HPC-AI Game Plan

November 25, 2019

It’s probably fair to say IBM is known for big bets. Summit supercomputer – a big win. Red Hat acquisition – looking like a big win. OpenPOWER and Power processors – jury’s out? At SC19, long-time IBMer Dave Turek sketched out a different kind of bet for Big Blue – a small ball strategy, if you’ll forgive the baseball analogy... Read more…

By John Russell

Intel Debuts New GPU – Ponte Vecchio – and Outlines Aspirations for oneAPI

November 17, 2019

Intel today revealed a few more details about its forthcoming Xe line of GPUs – the top SKU is named Ponte Vecchio and will be used in Aurora, the first plann Read more…

By John Russell

IBM Unveils Latest Achievements in AI Hardware

December 13, 2019

“The increased capabilities of contemporary AI models provide unprecedented recognition accuracy, but often at the expense of larger computational and energet Read more…

By Oliver Peckham

SC19: Welcome to Denver

November 17, 2019

A significant swath of the HPC community has come to Denver for SC19, which began today (Sunday) with a rich technical program. As is customary, the ribbon cutt Read more…

By Tiffany Trader

Fujitsu A64FX Supercomputer to Be Deployed at Nagoya University This Summer

February 3, 2020

Japanese tech giant Fujitsu announced today that it will supply Nagoya University Information Technology Center with the first commercial supercomputer powered Read more…

By Tiffany Trader

51,000 Cloud GPUs Converge to Power Neutrino Discovery at the South Pole

November 22, 2019

At the dead center of the South Pole, thousands of sensors spanning a cubic kilometer are buried thousands of meters beneath the ice. The sensors are part of Ic Read more…

By Oliver Peckham

Leading Solution Providers

SC 2019 Virtual Booth Video Tour

AMD
AMD
ASROCK RACK
ASROCK RACK
AWS
AWS
CEJN
CJEN
CRAY
CRAY
DDN
DDN
DELL EMC
DELL EMC
IBM
IBM
MELLANOX
MELLANOX
ONE STOP SYSTEMS
ONE STOP SYSTEMS
PANASAS
PANASAS
SIX NINES IT
SIX NINES IT
VERNE GLOBAL
VERNE GLOBAL
WEKAIO
WEKAIO

Jensen Huang’s SC19 – Fast Cars, a Strong Arm, and Aiming for the Cloud(s)

November 20, 2019

We’ve come to expect Nvidia CEO Jensen Huang’s annual SC keynote to contain stunning graphics and lively bravado (with plenty of examples) in support of GPU Read more…

By John Russell

Top500: US Maintains Performance Lead; Arm Tops Green500

November 18, 2019

The 54th Top500, revealed today at SC19, is a familiar list: the U.S. Summit (ORNL) and Sierra (LLNL) machines, offering 148.6 and 94.6 petaflops respectively, Read more…

By Tiffany Trader

Azure Cloud First with AMD Epyc Rome Processors

November 6, 2019

At Ignite 2019 this week, Microsoft's Azure cloud team and AMD announced an expansion of their partnership that began in 2017 when Azure debuted Epyc-backed instances for storage workloads. The fourth-generation Azure D-series and E-series virtual machines previewed at the Rome launch in August are now generally available. Read more…

By Tiffany Trader

Intel’s New Hyderabad Design Center Targets Exascale Era Technologies

December 3, 2019

Intel's Raja Koduri was in India this week to help launch a new 300,000 square foot design and engineering center in Hyderabad, which will focus on advanced com Read more…

By Tiffany Trader

In Memoriam: Steve Tuecke, Globus Co-founder

November 4, 2019

HPCwire is deeply saddened to report that Steve Tuecke, longtime scientist at Argonne National Lab and University of Chicago, has passed away at age 52. Tuecke Read more…

By Tiffany Trader

IBM Debuts IC922 Power Server for AI Inferencing and Data Management

January 28, 2020

IBM today launched a Power9-based inference server – the IC922 – that features up to six Nvidia T4 GPUs, PCIe Gen 4 and OpenCAPI connectivity, and can accom Read more…

By John Russell

Cray Debuts ClusterStor E1000 Finishing Remake of Portfolio for ‘Exascale Era’

October 30, 2019

Cray, now owned by HPE, today introduced the ClusterStor E1000 storage platform, which leverages Cray software and mixes hard disk drives (HDD) and flash memory Read more…

By John Russell

D-Wave’s Path to 5000 Qubits; Google’s Quantum Supremacy Claim

September 24, 2019

On the heels of IBM’s quantum news last week come two more quantum items. D-Wave Systems today announced the name of its forthcoming 5000-qubit system, Advantage (yes the name choice isn’t serendipity), at its user conference being held this week in Newport, RI. Read more…

By John Russell

  • arrow
  • Click Here for More Headlines
  • arrow
Do NOT follow this link or you will be banned from the site!
Share This