AIBullisharXiv – CS AI · 5h ago7/10
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CCL-D: A High-Precision Diagnostic System for Slow and Hang Anomalies in Large-Scale Model Training
Researchers introduce CCL-D, a diagnostic system for detecting anomalies in large-scale AI model training that identifies GPU communication failures in under 6 minutes. Deployed across 4,000 GPUs over one year, the system addresses a critical bottleneck in distributed training where slow/hang anomalies typically require days to diagnose.