Add support for Llama 3.1 (#2359)

* Add Llama 3.1 rope

* Clippy

* Format

* Clippy

* Add support for multiple eos tokens:

* Untagged either

* Remove either dep and fix settings.json

* Make the max positional embeddings configurable

candle-transformers/src/models/llava/config.rs

@@ -2,7 +2,7 @@ use std::collections::HashMap;
 
 use crate::models::{
     clip::{text_model::Activation, vision_model::ClipVisionConfig},
-    llama::Config,
+    llama::{Config, LlamaEosToks},
 };
 use serde::{Deserialize, Serialize};
 
@@ -73,8 +73,10 @@ impl LLaVAConfig {
             rms_norm_eps: self.rms_norm_eps as f64,
             rope_theta: self.rope_theta,
             bos_token_id: Some(self.bos_token_id as u32),
-            eos_token_id: Some(self.eos_token_id as u32),
+            eos_token_id: Some(LlamaEosToks::Single(self.eos_token_id as u32)),
             use_flash_attn: false,
+            rope_scaling: None, // Assume we don't have LLaVA for Llama 3.1
+            max_position_embeddings: self.max_position_embeddings,
         }
     }
 }