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Bilibili Tech
Bilibili Tech
Mar 4, 2025 · Artificial Intelligence

Engineering Practices and Optimizations for Text‑to‑Video Generation Models (OpenSora, CogVideoX) on Bilibili TTV Team

The Bilibili TTV team optimized OpenSora and CogVideoX text‑to‑video models by redesigning data storage with Alluxio, parallelizing VAE encoding, applying dynamic sequence‑parallel and DeepSpeed‑Ulysses attention, adapting GPU code for NPU execution, leveraging profiling‑driven kernel fusion, FlashAttention, and expandable memory to dramatically increase training efficiency and frame throughput, while outlining future pipeline‑parallel and ZeRO‑3 scaling plans.

Data PipelineDiffusion TransformerFlashAttention
0 likes · 26 min read
Engineering Practices and Optimizations for Text‑to‑Video Generation Models (OpenSora, CogVideoX) on Bilibili TTV Team
DeWu Technology
DeWu Technology
May 15, 2024 · Artificial Intelligence

Accelerating Large Language Model Inference: Techniques and Framework Recommendations

Deploying a dedicated inference cluster and applying four key optimizations—FlashAttention‑based attention computation, PageAttention KV‑cache management, Mixture‑of‑Experts parameter reduction, and tensor parallelism—can accelerate large language model inference by up to 50% for models as large as 70 B parameters while cutting deployment costs.

FlashAttentionInference AccelerationMixture of Experts
0 likes · 17 min read
Accelerating Large Language Model Inference: Techniques and Framework Recommendations