Optimizing Codes for Heterogeneous HPC Clusters Using OpenACC

July 3, 2017

Looking at the Top500 and Green500 ranks, one clearly realizes that most HPC systems are heterogeneous architecture using COTS (Commercial Off-The-Shelf) hardware, combining traditional multi-core CPUs with massively parallel accelerators, such as GPUs and MICs. With processor frequencies now hitting a solid wall, the only truly open avenue for riding today the Moore’s law is increasing hardware parallelism in several different ways: more computing nodes, more processors in each node, more cores within each processor, and longer vector instructions in each core. Read more…

By Enrico Calore et. al.

Gen-Z Consortium Puts New High Performance Interconnect in Motion

October 12, 2016

Industry powerhouses have joined forces to address an issue that has confounded system architects since the advent of multicore computing, one that has gained in urgency with the rising tide of big data: the need to bring balance between processing power and data access. The Gen-Z Consortium has set out to create an open, high-performance semantic fabric interconnect... Read more…

By Doug Black

On-Chip Device Accelerates Core-to-Core Communication

September 13, 2016

A team of engineers from North Carolina State University and Intel have joined forces to address on-chip communications bottlenecks that hamper performance scal Read more…

By Tiffany Trader

Report Addresses the Perils of Dark Silicon

July 21, 2016

Dark silicon refers to the processing potential that's lost when thermal constraints disallow full CPU utilization. The gap between transistor scaling and voltage scaling combined with tighter integration of components (multicore, SoCs) has power density ramifications that are of particular concern for embedded computing, but high-performance computing faces similar "dark power" challenges. Bringing attention to this issue and exploring common solutions was the goal of the Dagstuhl Seminar 16052, “Dark Silicon: From Embedded to HPC Systems.” Read more…

By Tiffany Trader

MIT’s Multicore Swarm Architecture Advances Ordered Parallelism

July 21, 2016

A relatively new architecture explicitly designed for parallelism – Swarm – based on work at MIT has shown promise for substantially speeding up classes of Read more…

By John Russell

James Reinders: Parallelism Has Crossed a Threshold

February 4, 2016

Is the parallel everything era here? What happens when you can assume parallel cores? In the second half of our in-depth interview, Intel's James Reinders discu Read more…

By Tiffany Trader

Processor Diversity on the Rise, Reports Intersect360

November 12, 2015

Intel x86 processors continue to dominate HPC servers while the number of cores per processor also keeps rising, perhaps no surprises there. Also somewhat antic Read more…

By John Russell

OpenACC Reviews Latest Developments and Future Plans

November 11, 2015

This week during the lead up to SC15 the OpenACC standards group announced several new developments including the release and ratification of the 2.5 version of Read more…

By Tiffany Trader

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