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Python class

GGUFQAttentionWithRope

GGUFQAttentionWithRope

class max.nn.attention.GGUFQAttentionWithRope(*, rope, num_attention_heads, num_key_value_heads, hidden_size, kv_params, dtype, quantization_encoding, devices=None, linear_cls=<class 'max.nn.linear.Linear'>, scale=None, has_bias=False, clip_qkv=None)

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Bases: AttentionWithRope

Implementation of attention with GGUF quantized weights.

Initializes the GGUF attention layer.

Parameters:

  • rope (RotaryEmbedding) – The rope layer to borrow the freqs_cis value from.
  • num_attention_heads (int) – The number of attention heads.
  • num_key_value_heads (int) – Number of key/value heads.
  • hidden_size (int) – The dimension of the hidden states.
  • kv_params (KVCacheParams) – KV Cache params, including number of kv heads, head dim, and dtype.
  • layer_idx – The layer number associated with this Attention block.
  • dtype (DType) – DType of the weights, should always be uint8.
  • devices (list[DeviceRef] | None) – Device(s) on which to place the weights and run the computation. If multiple are provided, the first device is used. Use TensorParallelAttentionWithRope to use all devices during attention computation.
  • quantization_encoding (QuantizationEncoding) – Quantization encoding of the weights.
  • linear_cls (Callable[..., Linear]) – Linear class to use for the outputs dense layer.
  • scale (float | None) – Value used to scale the results of the attention output.
  • has_bias (bool) – Whether to use an attention bias.
  • clip_qkv (float | None) – If provided, the QKV weights are clamped between [-clip_qkv, clip_qkv]

rope

rope: RotaryEmbedding

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wqkv

property wqkv: TensorValue

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The concatenation of q, k, and v weight vectors.

wqkv_bias

property wqkv_bias: TensorValue | None

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The concatenation of q, k, and v bias weight vectors.