tag: data centers

Thermal Management Implications For Heterogeneous Integrated Packaging
By Cameron Nelson - 17 Feb, 2022 - Comments: 1

As the semiconductor industry reaches lower process nodes, silicon designers struggle to have Moore's Law produce the results achieved in earlier generations. Increasing the die size in a monolithic system on chip (SoC) designs is no longer economically viable. The breakdown of monolithic SoCs into specialized chips, referred to as chiplets, presents significant benefits in terms of cost, yield... » read more

Why Data Center Power Will Never Come Down
By Bryon Moyer - 10 Feb, 2022 - Comments: 3

Data centers have become significant consumers of energy. In order to deal with the proliferation of data centers and the servers within them, there is a big push to reduce the energy consumption of all data center components. With all that effort, will data center power really come down? The answer is no, despite huge improvements in energy efficiency. “Keeping data center power consum... » read more

The Ethernet Standard: To IP And Beyond
By Jerry Lotto - 13 Jan, 2022 - Comments: 0

Ethernet is ubiquitous—it is the core technology that defines the Internet and serves to connect the world in ways that people could not imagine even one generation ago. HPC clusters are working on solving the most challenging problems facing humanity—and cloud computing is the service hosting many of the application workloads struggling with these questions. While alternative network infra... » read more

How Inferencing Differs From Training in Machine Learning Applications
By Sam Fuller - 06 Jan, 2022 - Comments: 0

Machine learning (ML)-based approaches to system development employ a fundamentally different style of programming than historically used in computer science. This approach uses example data to train a model to enable the machine to learn how to perform a task. ML training is highly iterative with each new piece of training data generating trillions of operations. The iterative nature of the tr... » read more

Weight Adjustable Photonic Synapse by Nonlinear Gain in a Vertical Cavity Semiconductor Optical Amplifier
By Technical Paper Link - 21 Dec, 2021 - Comments: 0

Abstract: "In this paper, we report a high-speed and tunable photonic synaptic element based on a vertical cavity semiconductor optical amplifier (VCSOA) operating with short (150 ps-long) and low-energy (μW peak power) light pulses. By exploiting nonlinear gain properties of VCSOAs when subject to external optical injection, our system permits full weight tunability of sub-ns input light p... » read more

Can Coherent Optics Reduce Data-Center Power?
By Bryon Moyer - 09 Dec, 2021 - Comments: 0

As optical bandwidth requirements increase, system designers are turning to “coherent” modulation schemes that can place more data on the same laser light, and lower power over long connections. A newer question is whether those savings could be achieved for short connections within data centers, as well. “Coherent is the direction everything's moving, because for a given system and... » read more

Using Manufacturing Data To Boost Reliability
By Ed Sperling and Ann Mutschler - 07 Dec, 2021 - Comments: 0

As chipmakers turn to increasingly customized and complex heterogeneous designs to boost performance per watt, they also are demanding lower defectivity and higher yields to help offset the rising design and manufacturing costs. Solving those issues is a mammoth multi-vendor effort. There can be hundreds of process steps in fabs and packaging houses. And as feature sizes continue to shrink, ... » read more

Improving Energy And Power Efficiency In The Data Center
By Ann Mutschler - 06 Dec, 2021 - Comments: 0

Energy costs in data centers are soaring as the amount of data being generated explodes, and it's being made worse by an imbalance between increasingly dense processing elements that are producing more heat and uneven server utilization, which requires more machines to be powered up and cooled. The challenge is to maximize utilization without sacrificing performance, and in the past that has... » read more

Towards Decarbonization: Keeping Electronics Energy Consumption In Check
By Frank Schirrmeister - 23 Nov, 2021 - Comments: 0

The International Technology Roadmap for Semiconductors (ITRS) roadmap famously said in 2001 that "cost of design is the greatest threat to the continuation of the semiconductor roadmap." For years, the industry followed the ITRS updates on productivity improvements provided by automating design and hardware to counteract the looming design cost. The discussion on decarbonization has some simil... » read more

1.6 Tb/s Ethernet Challenges
By Ed Sperling - 16 Nov, 2021 - Comments: 0

Moving data at blazing fast speeds sounds good in theory, but it raises a number of design challenges. John Swanson, senior product marketing manager for high-performance computing digital IP at Synopsys, talks about the impact of next-generation Ethernet on switches, the types of data that need to be considered, the causes of data growth, and the size and structure of data centers, both in the... » read more

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