News and Announcements
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I/O issues January 2026
Friday, January 30, 2026 in News and Announcements
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As of January 2026, we’ve identified a potential I/O bottleneck in our current setup. Compute nodes and the head node share a storage system that serves multiple labs. When several labs run a large number of compute nodes simultaneously or …
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HPC as Facilities and Other Resources
Friday, January 30, 2026 in News and Announcements
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Computing Environment The Department of Neurology and the Getrude H. Sergievsky Center supports research computing through a high-performance computing (HPC) environment hosted on Amazon Web Services (AWS). A customized Columbia University Irving …
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Estimating Computing Costs for Genomics Project Budgets, January 2026
Thursday, January 29, 2026 in News and Announcements
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Method For cloud-based HPC, cost estimation is most accurate when based on actual instance hourly rates rather than traditional service units (SU). We use representative rates from each instance tier for straightforward estimation. Computing cost …
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HPC Feature Wishlist, January 2026
Tuesday, January 27, 2026 in News and Announcements
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As we continue to mature our AWS-based HPC system, we’ve compiled a wishlist of features and improvements we’d like to see implemented. Some are being actively worked on, others are longer-term goals. We’ll update this list as …
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Capacity test, November 2025
Monday, January 26, 2026 in News and Announcements
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Before launching the system into production in November 2025, we ran a series of disk I/O stress tests to ensure the storage layer could handle real-world workloads. Here’s what we found. For CPU-based I/O, we pushed up to 2,000 parallel jobs …