Struct ColumnParallel

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pub struct ColumnParallel { /* private fields */ }

Expand description

Column-parallel linear layer.

Each rank holds columns [rank * out/N .. (rank+1) * out/N] of the weight. Forward pass: Y_local = X @ W_local — no communication needed. The caller is responsible for gathering outputs if needed (DeviceGroup::all_gather).

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impl ColumnParallel

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pub fn new(linear: Linear, shard: TensorShard) -> Self

Wrap a pre-sharded linear layer.

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pub fn shard(&self) -> &TensorShard

Shard metadata.

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pub fn forward(&self, x: &Tensor) -> Result<Tensor>

Forward: local matmul only, no communication.

Auto Trait Implementations§

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impl UnwindSafe for ColumnParallel

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