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57 lines
1.6 KiB
Rust
57 lines
1.6 KiB
Rust
use candle::DType;
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use serde::Deserialize;
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pub const DTYPE: DType = DType::F32;
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize)]
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#[serde(rename_all = "lowercase")]
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pub enum PositionEmbeddingType {
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Absolute,
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Alibi,
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}
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// https://github.com/huggingface/transformers/blob/main/src/transformers/models/persimmon/configuration_persimmon.py
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#[derive(Debug, Clone, PartialEq, Deserialize)]
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pub struct Config {
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pub vocab_size: usize,
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pub hidden_size: usize,
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pub intermediate_size: usize,
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pub num_hidden_layers: usize,
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pub num_attention_heads: usize,
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pub num_key_value_heads: usize,
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pub hidden_act: candle_nn::Activation,
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pub max_position_embeddings: usize,
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pub initializer_range: f64,
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pub layer_norm_eps: f64,
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pub rms_norm_eps: f64,
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pub use_cache: bool,
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pub tie_word_embeddings: bool,
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pub rope_theta: f64,
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pub qk_layernorm: bool,
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pub partial_rotary_factor: f64,
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}
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impl Config {
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pub fn base_8b() -> Self {
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// https://huggingface.co/adept/persimmon-8b-base/blob/main/config.json
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Self {
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hidden_act: candle_nn::Activation::Relu,
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hidden_size: 4096,
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initializer_range: 0.02,
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intermediate_size: 16384,
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layer_norm_eps: 1e-05,
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max_position_embeddings: 16384,
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num_attention_heads: 64,
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num_hidden_layers: 36,
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num_key_value_heads: 64,
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qk_layernorm: true,
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rms_norm_eps: 1e-06,
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rope_theta: 25000.0,
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tie_word_embeddings: false,
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use_cache: true,
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vocab_size: 262144,
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partial_rotary_factor: 0.5,
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}
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}
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}
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