[MAST] fix get_tokenizer error for MAST jobs (#632)

Author: JenniferWang

.meta/mast/qwen3_14b_mast.yaml

@@ -6,7 +6,7 @@ group_size: 8
 local_batch_size: 16 # per-device batch size
 max_req_tokens: 512
 max_res_tokens: 512
-model: "Qwen/Qwen3-1.7B"
+model: "/mnt/wsfuse/teamforge/hf/qwen3_1.7b"
 off_by_n: 1 # Off by one by default
 launcher: mast
 

.meta/mast/qwen3_1_7b_mast.yaml

@@ -6,7 +6,7 @@ group_size: 8
 local_batch_size: 16 # per-device batch size
 max_req_tokens: 512
 max_res_tokens: 512
-model: "Qwen/Qwen3-32B"
+model: "/mnt/wsfuse/teamforge/hf/qwen3_32b"
 off_by_n: 1 # Off by one by default
 launcher: mast