Compute Atlas https://computeatlas.net The supply chain and capital markets underneath large-scale compute. en Europe's domestic substitution index is zero https://computeatlas.net/blog/europe-domestic-substitution-is-zero https://computeatlas.net/blog/europe-domestic-substitution-is-zero Blog Mon, 07 Sep 2026 12:00:00 GMT Not one European system in our dataset is fully domestically supplied, even counting the EU as one home country. The fabric layer consolidated twice in a year https://computeatlas.net/blog/the-fabric-layer-consolidated-twice https://computeatlas.net/blog/the-fabric-layer-consolidated-twice Blog Sun, 06 Sep 2026 12:00:00 GMT HPE bought Cray in September 2019, NVIDIA bought Mellanox in April 2020, and because a spec string names the product rather than the parent, almost nobody charted it. What a holdout corpus told us https://computeatlas.net/blog/what-a-holdout-corpus-told-us https://computeatlas.net/blog/what-a-holdout-corpus-told-us Blog Sat, 05 Sep 2026 12:00:00 GMT Our parser scored 100% against strings we wrote and 47% against strings we had not seen. Publishing the second number is why the first one means anything. El Capitan verified as the fastest system in the world https://computeatlas.net/news#y2024 https://computeatlas.net/news/2024-11-el-capitan-verified News Mon, 18 Nov 2024 12:00:00 GMT LLNL confirms the MI300A-based system past 1.7 EFlop/s, making it the third US exascale machine and the second built entirely on AMD silicon. (Source: Lawrence Livermore National Laboratory) Summit retired after six years at Oak Ridge https://computeatlas.net/news#y2024 https://computeatlas.net/news/2024-11-summit-retired News Fri, 01 Nov 2024 12:00:00 GMT The retirement removes the largest remaining block of IBM POWER installed base from the graph in a single step, which is visible as a discontinuity on any CPU-architecture share chart. (Source: Oak Ridge Leadership Computing Facility) Aurora enters service at Argonne https://computeatlas.net/news#y2023 https://computeatlas.net/news/2023-12-aurora-first-light News Fri, 01 Dec 2023 12:00:00 GMT Eight years after contract award, following the cancellation of its original Xeon Phi design and a redesign around Ponte Vecchio. The longest announcement-to-first-light gap in this dataset. (Source: Argonne Leadership Computing Facility) LUMI enters service in Kajaani with a reported PUE near 1.03 https://computeatlas.net/news#y2022 https://computeatlas.net/news/2022-06-lumi-europe News Wed, 01 Jun 2022 12:00:00 GMT Hydroelectric supply and waste heat sold into the municipal district heating network. The clearest facility-layer story in the European fleet. (Source: LUMI) Frontier becomes the first system measured past one exaflop https://computeatlas.net/news#y2022 https://computeatlas.net/news/2022-05-frontier-exascale News Mon, 30 May 2022 12:00:00 GMT Every part of the compute node came from a single supplier, with HPE providing the cabinet, fabric and storage. Two companies account for essentially the whole machine. (Source: Oak Ridge Leadership Computing Facility) Phytium added to the US Entity List https://computeatlas.net/news#y2021 https://computeatlas.net/news/2021-04-entity-list-phytium News Fri, 09 Apr 2021 12:00:00 GMT Extends the substitution question from accelerators to the host CPU: Phytium's Arm server parts are the domestic option underneath the Tianhe line. (Source: Federal Register) Fugaku takes the top position with no accelerators https://computeatlas.net/news#y2020 https://computeatlas.net/news/2020-06-fugaku-number-one News Mon, 22 Jun 2020 12:00:00 GMT 158,976 A64FX nodes, on-package HBM, and the Tofu fabric integrated onto the processor die. The shortest bill of materials of any modern leadership system. (Source: RIKEN Center for Computational Science) NVIDIA completes its acquisition of Mellanox https://computeatlas.net/news#y2020 https://computeatlas.net/news/2020-04-nvidia-mellanox News Mon, 27 Apr 2020 12:00:00 GMT Together with HPE's acquisition of Cray seven months earlier, this ended the last two large independent fabric businesses and made accelerator share and interconnect share dependent variables. (Source: NVIDIA) Cornelis Networks takes over Omni-Path from Intel https://computeatlas.net/news#y2020 https://computeatlas.net/news/2020-04-omni-path-cornelis News Wed, 01 Apr 2020 12:00:00 GMT The only case in this dataset of a fabric outliving its vendor's interest in it. Intel discontinued the line in 2019; it continues independently. (Source: Cornelis Networks) HPE completes its acquisition of Cray https://computeatlas.net/news#y2019 https://computeatlas.net/news/2019-09-hpe-cray News Wed, 25 Sep 2019 12:00:00 GMT HPE becomes the corporate successor to most of the pre-2020 US supercomputing vendor base, having already absorbed SGI in 2016. (Source: Hewlett Packard Enterprise) Sugon, NRCPC and Hygon added to the US Entity List https://computeatlas.net/news#y2019 https://computeatlas.net/news/2019-06-entity-list-sugon News Mon, 24 Jun 2019 12:00:00 GMT The action covered the Sunway designer, a major Chinese integrator, and the AMD x86 licensee, closing several import paths at once and setting up the domestic substitution visible in later systems. (Source: Federal Register) NUDT and the Chinese national supercomputing centres added to the Entity List https://computeatlas.net/news#y2015 https://computeatlas.net/news/2015-02-entity-list-nudt News Wed, 18 Feb 2015 12:00:00 GMT Blocked the planned Xeon Phi upgrade to Tianhe-2. The 2018 rebuild replaced the American accelerators with NUDT's own Matrix-2000 and the machine got faster. (Source: Federal Register)