Computer Architecture Today

Informing the broad computing community about current activities, advances and future directions in computer architecture.
Archive of posts tagged: Memory
The Hitchhiker’s Guide to Coherent Fabrics: 5 Programming Rules for CXL, NVLink, and InfinityFabric

The Hitchhiker’s Guide to Coherent Fabrics: 5 Programming Rules for CXL, NVLink, and InfinityFabric

This is the second article in the series, following our first blog in Dec 2023: Tuning the Symphony of Heterogeneous Memory Systems Modern applications are increasingly memory hungry. Applications like Large-Language Models (LLM), in-memory databases, and data...

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Current status, needs, and challenges in Heterogeneous and Composable Memory from the HCM workshop (HPCA’23)

Current status, needs, and challenges in Heterogeneous and Composable Memory from the HCM workshop (HPCA’23)

Introduction Memory systems are evolving into heterogeneous and composable architectures. Heterogeneous and Composable Memory (HCM) offers a feasible solution for terabyte- or petabyte-scale systems, addressing the performance and efficiency demands of emerging...

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Fast memcpy, A System Design

When I worked at Google, fleet-wide profiling revealed that 25-35% of all CPU time was spent just moving bytes around: memcpy, strcmp, copying between user and kernel buffers in network and disk I/O, hidden copy-on-write in soft page faults, checksumming, compressing,...

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Persistent Memory – A New Hope

Persistent Memory – A New Hope

The Cancellation of the Intel Optane Product Line Recently, Intel announced the cancellation of all Optane products, including both Optane SSDs and Optane Persistent Memory. The news came all of a sudden but was not totally unexpected, as Micron sold the 3D XPoint fab...

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