23 lines
849 B
Markdown
23 lines
849 B
Markdown
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title = "[arXiv] Interconnect Bandwidth Heterogeneity on AMD MI250x and Infinity Fabric"
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date = 2023-02-28T00:00:00 # Schedule page publish date.
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draft = false
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math = false
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tags = ["ROCm"]
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+++
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**Carl Pearson**
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Demand for low-latency and high-bandwidth data transfer between GPUs has
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driven the development of multi-GPU nodes. Physical constraints on the
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manufacture and integration of such systems has yielded heterogeneous
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intra-node interconnects, where not all devices are connected equally. The next
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generation of supercomputing platforms are expected to feature AMD CPUs and
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GPUs. This work characterizes the extent to which interconnect heterogeneity is
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visible through GPU programming APIs on a system with four AMD MI250x GPUs, and
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provides several insights for users of such systems.
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* [arxiv](https://arxiv.org/abs/2302.14827)
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