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Junlin Chen

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#machine learning Preprint Oct 2026

Towards Looped Models Done Right, Part II: Rethinking at Fixed Points

Every recurrence of a looped language model adds cost in training, decoding, prefill, and reinforcement learning (RL). The closer recurrent states get to fixed points, the less the path to them matters. This enables truncated backpropagation in training; terminal key-value (KV) sharing for decoding with almost no loss...

Benhao Huang, Chu-Fan Shi, Jun-Lin Chen et al. · 0 citations
#machine learning Preprint Sep 2026

Broken Symmetry in BF16 Attention: Why FlashAttention Gradients Blow Up Late in Training

BF16 is now standard in large-scale pretraining, including in fused attention kernels such as FlashAttention, and these kernels are widely trusted. When we used FlashAttention-3 to pretrain a 450M-parameter transformer on 50B tokens, however, we ran into a problem: training was healthy for 25B tokens, then the gradient...

Jun-Lin Chen, Daize Dong, Huan-Wei Di et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Diamond Agent: Agentic Control of Federated HPC Resources as a Service

This work designs Diamond Agent, an agentic system that enables intelligent execution of HPC workflows across heterogeneous clusters with typed skills as the interface, and reduces the median additional completion time relative to the fastest observed placement from 42 seconds to 4 seconds, a 10.5x reduction.

Haotian Xie, Jun-Lin Chen, Ming-Kai Zheng et al. · 0 citations
Book Open access Jul 2026

Cremes: Cost-Efficient and Reliable Microservice Execution on Spot Instances

Cremes is proposed, an adaptive and cost-efficient scaling framework that ensures microservice recovery within the spot instance grace period and maintains SLO violation rates under preemptible environments below 6.7%.

Liao Chen, Chenyu Lin, Junlin Chen et al. · 0 citations

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