Add chain awareness to shard identification
Add chain awareness to shard identification: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). Right now a shard is identified by a 32-bit branch value that only encodes a shard size and a shard id. We are moving to a multi-chain layout where every shard also belongs…
The task
Right now a shard is identified by a 32-bit *branch value* that only encodes a shard size and a shard id. We are moving to a multi-chain layout where every shard also belongs to a chain, so the identifier needs to carry a chain id as well.
Part of FineEnvs/MiMo-V2.6-RL-harbor-code.