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PCM is a popular backing memory for DRAM main memory in tiered memory systems. PCM has asymmetric access energy; writes dominate reads. MLC asymmetry can vary by an order of magnitude. Many schemes have been developed to take advantage of…

Hardware Architecture · Computer Science 2021-12-06 Stephen Longofono , Seyed Mohammad Seyedzadeh , Alex K. Jones

High performance computing (HPC) applications have a high requirement on storage speed and capacity. Non-volatile memory is a promising technology to replace traditional storage devices to improve HPC performance. Earlier in 2017, Intel and…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-05-15 Kai Wu , Frank Ober , Shari Hamlin , Dong Li

The conventional von Neumann architecture has been revealed as a major performance and energy bottleneck for rising data-intensive applications. %, due to the intensive data movements. The decade-old idea of leveraging in-memory processing…

Hardware Architecture · Computer Science 2019-06-18 Bing Li , Bonan Yan , Hai , Li

Non-volatile memory (NVM) is a promising technology for low-energy and high-capacity main memory of computers. The characteristics of NVM devices, however, tend to be fundamentally different from those of DRAM (i.e., the memory device…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-01-08 Atsushi Koshiba , Takahiro Hirofuchi , Ryousei Takano , Mitaro Namiki

This paper explores the implications of employing non-volatile memory (NVM) as primary storage for a data base management system (DBMS). We investigate the modifications necessary to be applied on top of a traditional relational DBMS to…

Databases · Computer Science 2025-02-14 Naveed Ul Mustafa , Adri`a Armejach , Ozcan Ozturk , Adrian Cristal , Osman S. Unsal

Hybrid memory systems comprised of dynamic random access memory (DRAM) and non-volatile memory (NVM) have been proposed to exploit both the capacity advantage of NVM and the latency and dynamic energy advantages of DRAM. An important…

Hardware Architecture · Computer Science 2019-12-18 Yang Li , Jongmoo Choi , Jin Sun , Saugata Ghose , Hui Wang , Justin Meza , Jinglei Ren , Onur Mutlu

Recently, analog compute-in-memory (CIM) architectures based on emerging analog non-volatile memory (NVM) technologies have been explored for deep neural networks (DNN) to improve energy efficiency. Such architectures, however, leverage…

Signal Processing · Electrical Eng. & Systems 2020-08-07 Zhe Wan , Tianyi Wang , Yiming Zhou , Subramanian S. Iyer , Vwani P. Roychowdhury

Utilizing hardware transactional memory (HTM) in conjunction with non-volatile memory (NVM) to achieve persistence is quite difficult and somewhat awkward due to the fact that the primitives utilized to write data to NVM will abort HTM…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-23 Gaetano Coccimiglio , Trevor Brown , Srivatsan Ravi

Non-volatile memory (NVM) has the potential to disrupt the boundary between memory and storage, including the abstractions that manage this boundary. Researchers comparing the speed, durability, and abstractions of hybrid systems with DRAM,…

Programming Languages · Computer Science 2018-08-02 Shoaib Akram , Jennifer B. Sartor , Kathryn S. McKinley , Lieven Eeckhout

Checkpointing large amounts of related data concurrently to stable storage is a common I/O pattern of many HPC applications. However, such a pattern frequently leads to I/O bottlenecks that lead to poor scalability and performance. As…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-03-04 Bogdan Nicolae , Adam Moody , Gregory Kosinovsky , Kathryn Mohror , Franck Cappello

Unified Virtual Memory (UVM) was recently introduced on recent NVIDIA GPUs. Through software and hardware support, UVM provides a coherent shared memory across the entire heterogeneous node, migrating data as appropriate. The older CUDA…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-08-02 Rohan Garg , Apoore Mohan , Michael Sullivan , Gene Cooperman

Non-volatile memory (NVM), also known as persistent memory, is an emerging paradigm for memory that preserves its contents even after power loss. NVM is widely expected to become ubiquitous, and hardware architectures are already providing…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-22 Eleni Bila , John Derrick , Simon Doherty , Brijesh Dongol , Gerhard Schellhorn , Heike Wehrheim

Modern operating systems are typically POSIX-compliant with major system calls specified decades ago. The next generation of non-volatile memory (NVM) technologies raise concerns about the efficiency of the traditional POSIX-based systems.…

Operating Systems · Computer Science 2019-03-12 Viacheslav Dubeyko , Om Rameshwar Gatla , Mai Zheng

Energy harvesting systems have shown their unique benefit of ultra-long operation time without maintenance and are expected to be more prevalent in the era of Internet of Things. However, due to the batteryless nature, they suffer…

Hardware Architecture · Computer Science 2022-02-22 Jianping Zeng , Jongouk Choi , Xinwei Fu , Ajay Paddayuru Shreepathi , Dongyoon Lee , Changwoo Min , Changhee Jung

With the emergence of Non-Volatile Memories (NVMs) and their shortcomings such as limited endurance and high power consumption in write requests, several studies have suggested hybrid memory architecture employing both Dynamic Random Access…

Operating Systems · Computer Science 2018-05-08 Reza Salkhordeh , Hossein Asadi

After nearly a decade of anticipation, scalable nonvolatile memory DIMMs are finally commercially available with the release of Intel's 3D XPoint DIMM. This new nonvolatile DIMM supports byte-granularity accesses with access times on the…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-08-13 Jian Yang , Juno Kim , Morteza Hoseinzadeh , Joseph Izraelevitz , Steven Swanson

NVM is used as a new hierarchy in the storage system, due to its intermediate speed and capacity between DRAM, and its byte granularity. However, consistency problems emerge when we attempt to put DRAM, NVM, and disk together as an…

Operating Systems · Computer Science 2024-08-09 Guoyu Wang , Xilong Che , Haoyang Wei , Chenju Pei , Juncheng Hu

The design of the buffer manager in database management systems (DBMSs) is influenced by the performance characteristics of volatile memory (DRAM) and non-volatile storage (e.g., SSD). The key design assumptions have been that the data must…

Databases · Computer Science 2019-01-31 Joy Arulraj , Andy Pavlo , Krishna Teja Malladi

Inversion and PDE-constrained optimization problems often rely on solving the adjoint problem to calculate the gradient of the objec- tive function. This requires storing large amounts of intermediate data, setting a limit to the largest…

Mathematical Software · Computer Science 2018-02-08 Navjot Kukreja , Jan Hückelheim , Michael Lange , Mathias Louboutin , Andrea Walther , Simon W. Funke , Gerard Gorman

Repeated off-chip memory accesses to DRAM drive up operating power for data-intensive applications, and SRAM technology scaling and leakage power limits the efficiency of embedded memories. Future on-chip storage will need higher density…

Emerging Technologies · Computer Science 2022-01-13 Lillian Pentecost , Alexander Hankin , Marco Donato , Mark Hempstead , Gu-Yeon Wei , David Brooks