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Block-sparse GPU kernels

Orders of magnitude faster. OpenAI just open-sourced GPU kernels that could reshape how models run inference.

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The infrastructure powering AI.AI illustration by KeyNews
The KeyNews take

Why it matters

Block-sparse GPU kernel optimization is foundational infrastructure that reduces compute cost and latency for neural networks at scale. This directly impacts the economics of model deployment and inference efficiency.

The key facts

5 to know
  1. Block-sparse GPU kernels released by OpenAI

  2. Performance improvement: orders of magnitude faster than cuBLAS/cuSPARSE

  3. Applied to text sentiment analysis and generative modeling (text and images)

  4. Addresses underexplored neural network architecture class

  5. Published December 6, 2017

Go to the source

OpenAI Blogopenai.com

Publisher excerpt: We’re releasing highly-optimized GPU kernels for an underexplored class of neural network architectures: networks with block-sparse weights. Depending on the chosen sparsity, these kernels can run orders of magnitude faster than cuBLAS or cuSPARSE. We’ve used them to attain state-of-the-art results…
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