https://arxiv.org/abs/2002.12151

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Computer Science > Distributed, Parallel, and Cluster Computing

Title:Vortex: OpenCL Compatible RISC-V GPGPU

Authors:Fares Elsabbagh, Blaise Tine, Priyadarshini Roshan, Ethan
Lyons, Euna Kim, Da Eun Shim, Lingjun Zhu, Sung Kyu Lim, Hyesoon kim
(Submitted on 27 Feb 2020)

    Abstract: The current challenges in technology scaling are
    pushing the semiconductor industry towards hardware
    specialization, creating a proliferation of heterogeneous
    systems-on-chip, delivering orders of magnitude performance and
    power benefits compared to traditional general-purpose
    architectures. This transition is getting a significant boost
    with the advent of RISC-V with its unique modular and extensible
    ISA, allowing a wide range of low-cost processor designs for
    various target applications. In addition, OpenCL is currently the
    most widely adopted programming framework for heterogeneous
    platforms available on mainstream CPUs, GPUs, as well as FPGAs
    and custom DSP. In this work, we present Vortex, a RISC-V
    General-Purpose GPU that supports OpenCL. Vortex implements a
    SIMT architecture with a minimal ISA extension to RISC-V that
    enables the execution of OpenCL programs. We also extended OpenCL
    runtime framework to use the new ISA. We evaluate this design
    using 15nm technology. We also show the performance and energy
    numbers of running them with a subset of benchmarks from the
    Rodinia Benchmark suite.

Subjects: Distributed, Parallel, and Cluster Computing (cs.DC)
Cite as:  arXiv:2002.12151 [cs.DC]
          (or arXiv:2002.12151v1 [cs.DC] for this version)

Submission history

From: Blaise Pascal Tine [view email]
[v1] Thu, 27 Feb 2020 15:01:11 UTC (7,362 KB)
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