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Ai2 replaces priority-based GPU scheduler with budgeted fair-share and time-slicing

The Allen Institute for AI replaced its priority-based GPU scheduler with a system using GPU time budgets, hierarchical fair-share allocation, and a time-slicing contract to improve which projects receive scarce GPU resources while preserving occupancy. The change shifts allocation decisions from ad-hoc operational moves to a transparent administrative budgeting process across clusters of H100/B200/B300 GPUs serving ~150 researchers.

KEY POINTS

  1. The Allen Institute for AI replaced its priority-based GPU scheduler with a system using GPU time budgets, hierarchical fair-share allocation, and a time-slicing contract to improve which projects receive scarce GPU resources while preserving occupancy.
  2. The change shifts allocation decisions from ad-hoc operational moves to a transparent administrative budgeting process across clusters of H100/B200/B300 GPUs serving ~150 researchers.
  3. This matters because it changes how scarce GPU capacity is allocated—reducing priority inflation, squatting, and manual intervention while making project-level budgets and fairness explicit.

WHY IT MATTERS

This matters because it changes how scarce GPU capacity is allocated—reducing priority inflation, squatting, and manual intervention while making project-level budgets and fairness explicit.

SOURCES & TIMELINE

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