Japan's Supercomputer 'K Computer' Placed First in the HPCG International Ranking

The K Computer Placed First in a New International Ranking

On November 16, 2016, the K computer was awarded first place in the international High Performance Conjugate Gradient (HPCG) ranking. The conjugate gradient* method has seen actual application in the industry.

HPCG is a new international benchmark with a new perspective compared to LINPACK, which focuses on the speed of linear algebra computations, and the Graph 500, which evaluates graph analysis performance. HPCG performance rankings have been published since 2014. The K computer achieving the highest HPCG score in the world indicates that it is more efficient than its counterparts when used in industry or in other practical applications.

It has also maintained its first place position four consecutive times in the Graph 500, the international supercomputer performance ranking for Big Data processing (large-scale graph analysis). Ranking seventh in the Top 500, the K computer has once again proved its all-around ability to achieve results in applications across multiple fields.

*: The conjugate gradient method is an iterative technique for solving linear algebra equations. When combined with preprocessing, it can find answers correctly and quickly. It is a common method used in computer simulations.

Seventeen-day Manual Calculation in Just One Second

Fujitsu and RIKEN jointly developed the K computer.

It can compute 10 quadrillion calculations (10 to the 16th power, or 10 petaflops) in a single second. This computational capacity is equivalent to if the Earth's entire population (7 billion people), performing one calculation per second, got together with their calculators and performed calculations for approximately 17 days straight. The K computer, with its blazingly fast speed, can complete the same number of calculations in just one second. In 2011, it was ranked first in supercomputer performance in the Top 500.

Supercomputers Open the Doors to the Future

Humans have solved numerous problems using science and technology in order to create an abundant society and a better future. Our efforts continue today in the fields of the environment, space development and medical care. Supercomputers are what empower us to challenge the limits of these fields and carve a way to the future. They are designed to perform scientific and technical calculations; with their unbelievably high processing capacity, they perform difficult calculations involving large numbers in a short period of time. This is something that regular computers are unable to perform.

Supercomputers are superior when it comes to computer simulations, as well. They perform calculations and simulate what was previously unknown to humans due to the sheer scale, accompanying danger, or issues in feasibility of the issue in question. Examples of such simulations include analysis into global climate change, increasing temperature of the earth's interior structure, and the creation of the universe. The simulation feature of supercomputers allows extremely complicated events to be examined in detail.

Further development of supercomputers is expected to take Japanese industrial technologies to the next level.

Commitment to Creating a Brighter Future for Us and Our Planet

By 2020, the Internet of Things ("IoT") is predicted to give rise to a new market around the world, generating approximately 200 trillion yen (1.7 trillion USD) per year. However, the current reality is that large volumes of data are being generated, but are seldom used. Supercomputers can perform high-speed and extensive analysis of this "Big Data".

Finding answers to the majority of the problems we currently face requires the gathering of intelligence and wisdom from around the world in order to accelerate cutting-edge research. Today, supercomputers are opening doors to innovation. Through developing supercomputers, Fujitsu is continuing its commitment to creating a brighter future for us and our planet.