Authors: Mitsuhisa Sato (RIKEN), Andrew Younge (Sandia National Laboratories), Gopal Patnaik (US Naval Research Laboratory), Simon McIntosh-Smith (University of Bristol), John Linford (ARM Ltd), John Wohlbier (Engility Corporation)
Abstract: The ARM architecture has gained substantial traction in the HPC community as evidenced by several ARM-based projects including the Japanese Post-K, European Mont-Blanc, U.S. DOE Vanguard, and UK GW4/EPSRC efforts, as well as the commercial availability of ARM nodes from HPC vendors including Cray, Gigabyte, HPE, and Ingrasys. We will bring together experts to share their experiences investigating ARM HPC, from testbeds with current ARM processors to plans for future exascale systems. The BoF includes a panel session where members and the audience together can discuss progress and define the future state of ARM in the HPC community.
Long Description: The ARM architecture has grown in availability and usability for the HPC community in just the past few years. This is demonstrated by several ARM-based projects around the world, including the Japanese Post-K, European Mont-Blanc, U.S. DOE/NNSA Vanguard, the UK’s GW4/EPSRC efforts. Furthermore, the commercial availability of ARM nodes from HPC vendors such as Cray, Gigabyte, HPE, and Ingrasys also demonstrate the viability of ARM architectures. The ARM HPC community is growing substantially as the hardware is being tailored for HPC workloads via additions, such as ARMv8-A Scalable Vector Extension (SVE) technology, and its software stack is growing to meet HPC applications needs.
This will be the second SC Arm BoF that will bring together experts from the HPC community including national laboratories, vendors, and international research centers to give short lightning-talk presentations discussing how the current state-of-the-art of the ARM HPC ecosystem may be advanced to meet the applications requirements of the future. These short talks will be offered by ecosystem experts, researchers, and users in various fields and cover a wide array of topics surrounding the ARM ecosystem including compilers, operating systems, runtime environments, fabric enablement, performance tools, scientific libraries, system software, benchmarks and HPC applications. Presenters may even be able to share initial performance results which will be of direct interest to expected attendees. This will provide an opportunity for the HPC community to learn about the latest research and development, share the state-of-the-art, understand the rapid progress made within the ARM HPC ecosystem, and discuss the future of HPC and ARM.
Following initial presentations, we will hold a panel session to create active discussion between the BoF participants and audience. This panel will give attendees the opportunity to engage and interact with early adopters and contributors, learn about current development efforts and engage the discussion of future trends of ARM-based technologies as the industry advances. This panel will open the floor to discuss the latest advances in the ARM ecosystem with a two-pronged approach for panel discussion. First, a moderator will seed group discussion surrounding the hardware advances in ARM. Initial topics will include relevant challenges in system architecture, networking, memory system designs, and accelerators; all of which are of key drivers for the future of the HPC community. In particular, we would like to discuss the SVE technology and its potential impact on users and compilers of interest.
Then, the panel moderator will initiate detailed conversation surrounding the current state of the HPC software ecosystem of ARM. This will enable the audience to discuss advances in OS and compilers, runtime components, system libraries, scientific tools, programming models, and even share application porting experiences. The result of this BOF will be for attendees help create a holistic picture of the current advancements as well as future trends in both hardware and software of ARM-based supercomputing. After the BOF, we will produce a report of the topics discussed which relate to the ARM HPC ecosystem and define a mailing list of ARM users.
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