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Add the code-gemma models. (#2038)

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* Add the code-gemma models.

* Tweak to the gemma config.
This commit is contained in:
Laurent Mazare
2024-04-10 21:19:21 +02:00
committed by GitHub
parent b81ecf712d
commit a0460cd2b1
2 changed files with 27 additions and 4 deletions
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12
candle-examples/examples/gemma/main.rs
View File

@ -30,6 +30,14 @@ enum Which {
InstructV1_1_2B, InstructV1_1_2B,
#[value(name = "1.1-7b-it")] #[value(name = "1.1-7b-it")]
InstructV1_1_7B, InstructV1_1_7B,
#[value(name = "code-2b")]
CodeBase2B,
#[value(name = "code-7b")]
CodeBase7B,
#[value(name = "code-2b-it")]
CodeInstruct2B,
#[value(name = "code-7b-it")]
CodeInstruct7B,
} }
struct TextGeneration { struct TextGeneration {
@ -224,6 +232,10 @@ fn main() -> Result<()> {
Which::Base7B => "google/gemma-7b".to_string(), Which::Base7B => "google/gemma-7b".to_string(),
Which::Instruct2B => "google/gemma-2b-it".to_string(), Which::Instruct2B => "google/gemma-2b-it".to_string(),
Which::Instruct7B => "google/gemma-7b-it".to_string(), Which::Instruct7B => "google/gemma-7b-it".to_string(),
Which::CodeBase2B => "google/codegemma-2b".to_string(),
Which::CodeBase7B => "google/codegemma-7b".to_string(),
Which::CodeInstruct2B => "google/codegemma-2b-it".to_string(),
Which::CodeInstruct7B => "google/codegemma-7b-it".to_string(),
}, },
}; };
let repo = api.repo(Repo::with_revision( let repo = api.repo(Repo::with_revision(

19
candle-transformers/src/models/gemma.rs
View File

@ -1,7 +1,7 @@
use std::sync::Arc; use std::sync::Arc;
use candle::{DType, Device, Module, Result, Tensor, D}; use candle::{DType, Device, Module, Result, Tensor, D};
use candle_nn::{linear_b as linear, Linear, VarBuilder}; use candle_nn::{linear_b as linear, Activation, Linear, VarBuilder};
fn default_max_position_embeddings() -> usize { fn default_max_position_embeddings() -> usize {
4096 4096
@ -11,8 +11,9 @@ fn default_max_position_embeddings() -> usize {
pub struct Config { pub struct Config {
pub attention_bias: bool, pub attention_bias: bool,
pub head_dim: usize, pub head_dim: usize,
#[serde(alias = "hidden_activation")] // The code gemma configs include both hidden_act and hidden_activation.
pub hidden_act: candle_nn::Activation, pub hidden_act: Option<Activation>,
pub hidden_activation: Option<Activation>,
pub hidden_size: usize, pub hidden_size: usize,
pub intermediate_size: usize, pub intermediate_size: usize,
pub num_attention_heads: usize, pub num_attention_heads: usize,
@ -26,6 +27,16 @@ pub struct Config {
pub max_position_embeddings: usize, pub max_position_embeddings: usize,
} }
impl Config {
fn hidden_act(&self) -> Result<Activation> {
match (self.hidden_act, self.hidden_activation) {
(None, Some(act)) | (Some(act), None) => Ok(act),
(Some(_), Some(_)) => candle::bail!("both hidden_act and hidden_activation are set"),
(None, None) => candle::bail!("none of hidden_act and hidden_activation are set"),
}
}
}
#[derive(Debug, Clone)] #[derive(Debug, Clone)]
struct RmsNorm { struct RmsNorm {
weight: Tensor, weight: Tensor,
@ -127,7 +138,7 @@ impl MLP {
gate_proj, gate_proj,
up_proj, up_proj,
down_proj, down_proj,
act_fn: cfg.hidden_act, act_fn: cfg.hidden_act()?,
}) })
} }
} }