α · News · 2025-10-30

Federated scheduler v2 enters general availability

The replacement scheduler with hybrid tenure-priority-QV allocation graduates from beta after eleven months of side-by-side operation.

v2 is now serving 100% of compute scheduling for the federated pool. The cutover happened gracefully — the v1 scheduler ran in shadow mode for two weeks, and the two systems agreed on 94.3% of allocation decisions with no divergence on any flagged dual-use run.

The main practical change for cells: weighted QV rounds now run weekly rather than monthly, and the quadratic cost curve has been steepened slightly to reduce the influence of high-volume tactical voting on long-term capacity decisions. As before, source is available at github.com/alphabell-labs/ab-scheduler.

v1 ran in shadow mode for two weeks, and the two systems agreed on 94.3% of allocation decisions with no divergence on any flagged dual-use run.

Known issue: cells running long, contiguous training jobs occasionally see weighted-QV outcomes that interrupt their runs at unusual times of day. We are working with the affected cells on a partial-preemption escrow design that would allow long runs to be paused and restored without state loss.


For the protocol details behind anything mentioned above, see /governance and /charter. For the structural commitments, /about.