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PagedOptimStates

entrenar::lora

Struct PagedOptimStates 

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pub struct PagedOptimStates { /* private fields */ }
Expand description

Paged optimizer state manager

Wraps optimizer state storage with CPU↔GPU paging capability. On CPU-only systems, this is essentially a no-op wrapper.

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impl PagedOptimStates

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pub fn new(budget: VramBudget, strategy: PagingStrategy) -> Self

Create a new paged optimizer state manager

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pub fn register(&mut self, param_len: usize) -> usize

Register a parameter group

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pub fn get_state_mut(&mut self, idx: usize) -> &mut PagedState

Get mutable state for a parameter, paging in if necessary

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pub fn get_state(&self, idx: usize) -> &PagedState

Get immutable state

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pub fn total_cpu_bytes(&self) -> usize

Total CPU memory used by all states (bytes)

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pub fn num_states(&self) -> usize

Number of registered parameter groups

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pub fn all_fit_on_gpu(&self) -> bool

Would all states fit on GPU simultaneously?

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pub fn stats(&self) -> PagingStats

Get paging statistics

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