Ara
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Microarchitectural Co-Optimization for Sustained Throughput of RISC-V Multi-Lane Chaining Vector Processors
arXiv:2604.22314v2 Announce Type: replace Abstract: Modern RISC vector processors rely on multi-lane parallelism and chaining to achieve high sustained throughput, yet practical execution often deviates from the ideal reference due to microarchitectural inefficiencies. This work targets the open-source RVV processor Ara and analyzes its sustained-throughput loss under a fixed hardware configuration. We first establish an ideal multi-lane chaining model that decomposes ideal execution into...
School shooting survivor sues AI gun detection firm after system failed to spot weapon
The injured teenage survivor of a January 2025 shooting at a Nashville, Tennessee high school recently sued the manufacturer of an “AI gun detection” system that failed to detect the handgun that left two dead, including the shooter. According to the lawsuit, which was filed in Davidson County court last month, the security company Omnilert either knew or should have known that there were “significant operational limitations in its gun detection system that could result in detection failures...
Brightness 'gap' in ancient star cluster reveals missing red dwarfs
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Glittering star cluster image reveals missing patch of stars: 'We were not looking for the gap, but we found it'
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