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Primeur weekly 2017-12-18

Exascale supercomputing

Mont-Blanc 2020 project will pave the way to a European scalable, modular and power efficient High Performance Computing processor ...

A supercomputer will discover our future medicines ...

Quantum computing

Jülich Supercomputing Centre to achieve world record: Quantum computer with 46 qubits simulated ...

DENSO and Toyota Tsusho to conduct a test applying a quantum computer to analyze IoT data with a commercial application ...

IBM announces collaboration with Fortune 500 companies, academic institutions and national research labs to accelerate quantum computing ...

Complete design of a silicon quantum computer chip unveiled ...

Error-free into the quantum computer age ...

Quantum memory with record-breaking capacity based on laser-cooled atoms ...

Physicists from Konstanz, Princeton and Maryland create a stable quantum gate as a basic element for the quantum computer ...

Physicists say rare earth metals could help quantum computers communicate ...

Focus on Europe

Lenovo and Intel to deliver powerful, energy-efficient SuperMUC-NG, next generation supercomputer at Leibniz Supercomputing Centre ...

North Rhine-Westphalia supports expansion of German national supercomputer infrastructure ...

ISC 2018 and PASC18 Conferences to announce partnership ...

Hardware

Intersect360 Research invites to participate in tenth HPC budget map survey ...

BP supercomputer now world's most powerful for commercial research ...

MareNostrum 4, chosen as the most beautiful data centre in the world ...

NCI welcomes $70 million investment in HPC capability ...

Applications

Physicists win supercomputing time to study fusion and the cosmos ...

Artificial intelligence helps accelerate progress toward efficient fusion reactions ...

Johns Hopkins scientists chart how brain signals connect to neurons ...

Artificial Intelligence and supercomputers to help alleviate urban traffic problems ...

ESnet's Petascale DTN project speeds up data transfers between leading HPC centres ...

A computer system needing less time and memory to simulate mechanical systems ...

Drug discovery could accelerate hugely with Machine Learning ...

The Cloud

Murex to offer MX.3 risk, trading and post-trade solutions on the AWS Cloud ...

Fujitsu develops WAN acceleration technology utilizing FPGA accelerators ...

Meituan.com selects Mellanox interconnect solutions to accelerate its artificial intelligence, Big Data and Cloud data centres ...

Mellanox interconnect solutions accelerate Tencent Cloud high-performance computing and artificial intelligence infrastructure ...

Jülich Supercomputing Centre to achieve world record: Quantum computer with 46 qubits simulated


Prof. Dr. Kristel Michielsen in front of the Jülich supercomputer JUQUEEN Copyright: Forschungszentrum Jülich / Ralf-Uwe Limbach.
15 Dec 2017 Juelich - Scientists from the Jülich Supercomputing Centre have set a new world record. Together with researchers from Wuhan University and the University of Groningen, they successfully simulated a quantum computer with 46 quantum bits - or qubits - for the first time. For their calculations, the scientists used the Jülich supercomputer JUQUEEN as well as the world's fastest supercomputer Sunway TaihuLight at China's National Supercomputing Center in Wuxi.

Software developers won't have to start from scratch when the first practically applicable quantum computers become available in future. It is today possible to simulate the functioning of relatively large quantum computers on classical digital computers. The computational effort involved, however, is enormous. The amount of memory required doubles with each simulated quantum bit, or qubit.

"There are only a few supercomputers in the world that currently have such a large amount of memory, an adequate number of compute nodes, and sufficiently fast network connections to even simulate a system of 45 qubits - that was the former world record", explained Professor Kristel Michielsen from the Jülich Supercomputing Centre (JSC). "And it's just as important to get software up and running efficiently on the highly parallel architectures of state-of-the-art supercomputers."

Many codes lose efficiency if calculated in parallel on a large number of compute nodes. However, the software which Kristel Michielsen has been developing together with her partners for over ten years scales almost perfectly. It shows hardly any loss in performance even if several million compute nodes are applied at the same time, as is the case with the Chinese supercomputer Sunway TaihuLight.

Kristel Michielsen has already set a number of benchmarks in the past. In 2010, she became the first person to simulate a quantum computer with 42 qubits on the former Jülich supercomputer JUGENE. She then surpassed that world record in 2012 with the simulation of a 43-qubit system on JUQUEEN, the successor to JUGENE. Most recently, Kristel Michielsen simulated a 45-qubit quantum system together with partners from universities in Groningen, Tokyo, and Wuhan, thus equalling a record set in spring 2017. For that more than 500,000 gigabytes, or 0.5 petabytes, of memory were needed.

The latest breakthrough, which involved the simulation of a quantum computer with 46 qubits, was achieved following an adjustment of the simulation code. The representation of a quantum state now only requires 2 bytes instead of 16 bytes, without the accuracy of the results being significantly reduced. Other users can benefit from this simplification, which equates to a reduction in required memory by a factor of eight. The new version of the simulation software now enables a quantum computer with 32 qubits to be simulated on a notebook with 16 gigabytes of memory.

Scientists today use simulations of this kind to develop algorithms for future quantum computers and to test them on relatively large quantum computers. In the simplest case, the simulated quantum computers represent ideal quantum systems that behave exactly as predicted by the rules of quantum mechanics. Furthermore, basic error models are used to artificially produce disruptions that would be expected of a real quantum computer. The instability of qubits is one of the biggest problems associated with the development of practically applicable quantum computers, and one that researchers and developers are today attempting to rectify through simulations under ideal conditions.
Source: Forschungszentrum Juelich

Back to Table of contents

Primeur weekly 2017-12-18

Exascale supercomputing

Mont-Blanc 2020 project will pave the way to a European scalable, modular and power efficient High Performance Computing processor ...

A supercomputer will discover our future medicines ...

Quantum computing

Jülich Supercomputing Centre to achieve world record: Quantum computer with 46 qubits simulated ...

DENSO and Toyota Tsusho to conduct a test applying a quantum computer to analyze IoT data with a commercial application ...

IBM announces collaboration with Fortune 500 companies, academic institutions and national research labs to accelerate quantum computing ...

Complete design of a silicon quantum computer chip unveiled ...

Error-free into the quantum computer age ...

Quantum memory with record-breaking capacity based on laser-cooled atoms ...

Physicists from Konstanz, Princeton and Maryland create a stable quantum gate as a basic element for the quantum computer ...

Physicists say rare earth metals could help quantum computers communicate ...

Focus on Europe

Lenovo and Intel to deliver powerful, energy-efficient SuperMUC-NG, next generation supercomputer at Leibniz Supercomputing Centre ...

North Rhine-Westphalia supports expansion of German national supercomputer infrastructure ...

ISC 2018 and PASC18 Conferences to announce partnership ...

Hardware

Intersect360 Research invites to participate in tenth HPC budget map survey ...

BP supercomputer now world's most powerful for commercial research ...

MareNostrum 4, chosen as the most beautiful data centre in the world ...

NCI welcomes $70 million investment in HPC capability ...

Applications

Physicists win supercomputing time to study fusion and the cosmos ...

Artificial intelligence helps accelerate progress toward efficient fusion reactions ...

Johns Hopkins scientists chart how brain signals connect to neurons ...

Artificial Intelligence and supercomputers to help alleviate urban traffic problems ...

ESnet's Petascale DTN project speeds up data transfers between leading HPC centres ...

A computer system needing less time and memory to simulate mechanical systems ...

Drug discovery could accelerate hugely with Machine Learning ...

The Cloud

Murex to offer MX.3 risk, trading and post-trade solutions on the AWS Cloud ...

Fujitsu develops WAN acceleration technology utilizing FPGA accelerators ...

Meituan.com selects Mellanox interconnect solutions to accelerate its artificial intelligence, Big Data and Cloud data centres ...

Mellanox interconnect solutions accelerate Tencent Cloud high-performance computing and artificial intelligence infrastructure ...