A critical benchmarking test indicates that a processing-in-memory (PIM) chip designed and prototyped at the University of Southern California’s Information Sciences Institute is delivering the speedup designers hoped.
A team of ISI computer scientists led by software specialist Mary Hall and chip designer Jeff Draper earlier this year successfully integrated the new PIM chip, called "Godiva," into a Hewlett-Packard Long’s Peak Server. Hall and Draper will discuss their work at the SC2004 High Performance Computing Conference Nov. 8-10 in Pittsburgh PA. The Godiva chip uses a DDR-DRAM interface and "the server uses it as if it were standard memory," said Hall.
ISI has completed StreamAdd benchmarking, which measures memory bandwidth, on a single Godiva chip running as part of the Long’s Peak system. The result: the measured throughput of the Godiva chip and the original-equipment Itanium chip is roughly the same. "But our chip uses only one hundredth the electrical power of the Itanium," noted Draper. Like other PIM chips, Godiva is an effort to minimize the communication bottleneck that takes place when processing chips have to go back and forth to separate memory chips to get data for computations, and then store the results. "The theory," said Draper, "is that a PIM chip can keep results and data in its own memory, resulting in dramatic gains in speed. We now see these results in actual benchmarking."
Eric Mankin | EurekAlert!
PhoxTroT: Optical Interconnect Technologies Revolutionized Data Centers and HPC Systems
11.12.2017 | Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration IZM
Rules for superconductivity mirrored in 'excitonic insulator'
08.12.2017 | Rice University
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
11.12.2017 | Physics and Astronomy
11.12.2017 | Earth Sciences
11.12.2017 | Information Technology