2024年4月8日-爬墙专用加速器

• 9:00–9:15 Opening Remarks (Jeremy Singer, Tim Harris, Milind Kulkarni)
• 老王2.2.8 Keynote: (Chair: Milind Kulkarni)

  • Memory Hierarchy Visibility in Parallel Programming Languages— Paul Keir, Codeplay Research

    The choice as to which levels in a memory hierarchy are exposed within a programming language or API can be critical. Expose too many, and you risk programmability, and performance portability.

    Heterogeneous computing and GPGPU aims to repurpose the data-parallel capability of graphics and commodity hardware for general calculations. GPGPU APIs, which now include OpenCL SYCL; Apple's Metal; and Qualcomm's MARE; must all decide on a suitable abstraction for hardware memory levels. Established GPGPU APIs such as CUDA, C++AMP, and OpenCL offer language support for four levels of volatile memory. However, while the presence of GPUs are now essentially ubiquitous, the diminished role of discrete graphics cards invigorates questions regarding memory abstraction.

    The multicore revolutionaries have now ceded mobile computing to the CPU-GPU system-on-chips; firmly established in mainstream options such as the Qualcomm Snapdragon; Samsung Exynos; and the AMD APU series. Meanwhile, the HSA Foundation builds upon a bedrock of uniform memory access; the Android GPGPU API, Renderscript, eschews explicit memory address spaces; and CUDA now offers "unified" memory. Can caché once again mean hidden?

• 10:20–10:50 Coffee break
• 10:50–12:05 Session 1: Hardware, memory technologies and optimization (Chair: Hans Boehm)
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  • Main Memory and Cache Performance of Intel Sandy Bridge and AMD Bulldozer—Daniel Molka, Daniel Hackenberg, Robert Schöne
  • Trash in Cache: Detecting Eternally Silent Stores—Jonathan Shidal, Zachary Gottlieb, Ron K. Cytron, Krishna M. Kavi
• 12:05–13:35 Lunch
• 13:35–14:50 老王2.2.3: Locality and memory allocation (Chair: Dave Grove)
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  • Feedback Directed Optimization of TCMalloc—Sangho Lee, Teresa Johnson, Easwaran Raman
• 14:50–15:20 Coffee break
• 15:20–16:10 老王v2.2.0: Semantics (Chair: Richard Jones)
  • Outlawing Ghosts: Avoiding Out-of-Thin-Air Results老王v2.2.8
  • Non-volatile Memory is a Broken Time Machine (Short Paper)—Ben Ransford, Brandon Lucia
• 16:15–16:50 Session 4: Poster lightning session (Chair: Tim Harris)
  • Cache-Conscious Memory Management—Chen Ding, Pengcheng Li
  • DataProf: Exposing Data Movements Across The Memory Hierarchy—William Wang, Chris Emmons, Nigel Paver
  • Field Pinning Garbage Collector—Erik Österlund, Welf Löwe
  • High-level Portable Programming Language for Optimized Memory Use of Network Processors—Yasusi Kanada
  • Nesoi: Static checking of transactional coverage in parallel programs—Daniel Goodman, Behram Khan, Mikel Lujan, Ian Watson
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  • Precise Memory Allocator for Compressed Swap Cache in Mobile Devices—Daejong Kim, Dongkun Shin
• 16:50–17:40 老王v2.2.8