[santhnm2]

What does this PR do ?

Ensures token_to_block_idx uses int64 consistently. Otherwise, we were seeing numerical overflow when the number of blocks exceeded 2^16. Also makes batch_indices_decode int64 consistently.

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[santhnm2]

/ok to test 8945ac8

[tdene]

@santhnm2 @lmcafee-nvidia why not just keep all the metadata in int64 to prevent any such issues from popping up? It's not going to be a large memory cost.

[santhnm2]

@santhnm2 @lmcafee-nvidia why not just keep all the metadata in int64 to prevent any such issues from popping up? It's not going to be a large memory cost.

Yea I think we need to clean this up, will defer to a later PR though because it may end up breaking other things unintentionally

[santhnm2]

/ok to test 13888ad

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