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SiFive launches BigSky SF-2U870, its first full RISC-V server platform

SiFive unveiled the BigSky SF-2U870, a 2U rack server built around 32 of its P870-D cores running at 2.2GHz, paired with 256GB of DDR5-5600 memory and 64 lanes of PCIe 5.0. The system supports double-wide GPUs up to 450W, includes networking and storage options, and is compliant with the RVA23 profile, enabling it to run Ubuntu 26.04 without modification.

chipsandcheese.com · 2026-08-25

Nvidia outlines RISC-V requirements for CUDA support at Hot Chips 2026

Nvidia is working to extend CUDA compatibility beyond x86-64 and aarch64 to RISC-V CPUs, according to a Hot Chips 2026 presentation. The company laid out strict hardware requirements, including RVA23 compliance, adherence to RISC-V server SoC and platform specs, ACPI support, and PCIe coherency, to ensure CUDA runs efficiently rather than falling back on lowest-common-denominator code.

chipsandcheese.com · 2026-08-24

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