The world's appetite for analyzing massive amounts of structured and unstructured data has
grown dramatically. The computational demands of these abundant-data applications, such …

This article reviews the major outcomes of a 5-year (2011–2016) project using the K
computer to perform global numerical atmospheric simulations based on the non-hydrostatic …

A 20-year integration by the nonhydrostatic icosahedral atmospheric model (NICAM) with a
14 km mesh was conducted for the first time to obtain a climatological mean and diurnal to …

RIKEN and Fujitsu have been working together to develop the K computer, with the aim of
beginning shared use by the fall of 2012, as a part of the High-Performance Computing …

We review our work on an intra-data center (DC) network based on co-deployment of optical
packet switching (OPS) and optical circuit switching (OCS), conducted within the framework …

Achieving a high sustained simulation performance is the most important concern in the
HPC community. To this end, many kinds of HPC system architectures have been proposed …

There are many large-scale graphs in real world such as Web graphs and social graphs.
The interest in large-scale graph analysis is growing in recent years. Breadth-First Search …

The multidrug transporter AcrB transports a broad range of drugs out of the cell by means of
the proton-motive force. The asymmetric crystal structure of trimeric AcrB suggests a …

Energy efficiency is a must in today HPC systems. To achieve this goal, a holistic design
based on the use of power-aware components should be performed. One of the key …

The K computer, released on September 29, 2012, is a large-scale parallel supercomputer
system consisting of 82,944 compute nodes. We have been able to resolve a significant …