tag: DRAM

DRAM Chips Perform Functionally-Complete Boolean Operations (ETH Zurich)
By Technical Paper Link - 12 Mar, 2024 - Comments: 0

A new technical paper titled "Functionally-Complete Boolean Logic in Real DRAM Chips: Experimental Characterization and Analysis" was published by researchers at ETH Zurich. Abstract: "Processing-using-DRAM (PuD) is an emerging paradigm that leverages the analog operational properties of DRAM circuitry to enable massively parallel in-DRAM computation. PuD has the potential to significantly ... » read more

Securing DRAM Against Evolving Rowhammer Threats
By Aharon Etengoff - 07 Mar, 2024 - Comments: 0

Advanced process nodes and higher silicon densities are heightening DRAM's susceptibility to Rowhammer attacks, as reduced cell spacing significantly decreases the hammer count needed for bit flips. Rowhammer exploits DRAM’s single-capacitor-per-bit design to trigger bit flips in adjacent cells through repeated memory row accesses. This vulnerability allows attackers to manipulate data, re... » read more

Building Scalable And Efficient Data Centers With CXL
By Lou Ternullo - 15 Feb, 2024 - Comments: 0

The AI boom is giving rise to profound changes in the data center; demanding AI workloads are driving an unprecedented need for low latency, high-bandwidth connectivity and flexible access to more memory and compute power when needed. The Compute Express Link (CXL) interconnect offers new ways for data centers to enhance performance and efficiency between CPUs, accelerators and storage and move... » read more

Re-architecting Hardware For Energy
By Brian Bailey - 15 Feb, 2024 - Comments: 0

A lot of effort has gone into the power optimization of a system based on the RTL created, but that represents a small fraction of the possible power and energy that could be saved. The industry's desire to move to denser systems is being constrained by heat, so there is an increasing focus on re-architecting systems to reduce the energy consumed per useful function performed. Making signifi... » read more

SRAM Scaling Issues, And What Comes Next
By Karen Heyman - 15 Feb, 2024 - Comments: 0

The inability of SRAM to scale has challenged power and performance goals forcing the design ecosystem to come up with strategies that range from hardware innovations to re-thinking design layouts. At the same time, despite the age of its initial design and its current scaling limitations, SRAM has become the workhorse memory for AI. SRAM, and its slightly younger cousin DRAM, have always co... » read more

SW/HW Codesign For CXL Memory Disaggregation In Billion-Scale Nearest Neighbor Search (KAIST)
By Technical Paper Link - 14 Feb, 2024 - Comments: 0

A technical paper titled “Bridging Software-Hardware for CXL Memory Disaggregation in Billion-Scale Nearest Neighbor Search” was published by researchers at the Korea Advanced Institute of Science and Technology (KAIST) and Panmnesia. Abstract: "We propose CXL-ANNS, a software-hardware collaborative approach to enable scalable approximate nearest neighbor search (ANNS) services. To this e... » read more

Memory’s Future Hinges On Reliability
By Karen Heyman - 14 Feb, 2024 - Comments: 0

Experts at the Table: Semiconductor Engineering sat down to talk about the impact of power and heat on off-chip memory, and what can be done to optimize performance, with Frank Ferro, group director, product management at Cadence; Steven Woo, fellow and distinguished inventor at Rambus; Jongsin Yun, memory technologist at Siemens EDA; Randy White, memory solutions program manager at Keysight; a... » read more

Enabling Beyond-Bound Decoding For DRAM By Unraveling Reed-Solomon Codes
By Technical Paper Link - 06 Feb, 2024 - Comments: 0

A technical paper titled “Unraveling codes: fast, robust, beyond-bound error correction for DRAM” was published by researchers at Rambus. Abstract: "Generalized Reed-Solomon (RS) codes are a common choice for efficient, reliable error correction in memory and communications systems. These codes add 2t extra parity symbols to a block of memory, and can efficiently and reliably correct up ... » read more

How To Stop Row Hammer Attacks
By Ed Sperling - 30 Jan, 2024 - Comments: 0

Row hammer is a well-publicized target for cyberattacks on DRAM, and there have been attempts to stop these attacks in DDR4 and DDR5, but with mixed results. The problem is that as density increases, distance decreases, making it more likely that flipped bit cell in one row can disturb a bit cell in another, and that bits flipped across an entire row can flip another row. Steven Woo, fellow and... » read more

What’s Changing In DRAM
By Ed Sperling - 22 Jan, 2024 - Comments: 0

More data requires more processing and more storage, because that data needs to be stored somewhere. What’s changing is that it’s no longer just about SRAM and DRAM. Today, multiple types of DRAM are used in the same devices, each with its own set of tradeoffs. C.S. Lin, marketing executive at Winbond, talks about the potential problems that causes, including mismatches in latency, and high... » read more

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