diff --git a/RWKV-v4neo/src/dataset.py b/RWKV-v4neo/src/dataset.py
index ee5ce8e..662023f 100644
--- a/RWKV-v4neo/src/dataset.py
+++ b/RWKV-v4neo/src/dataset.py
@@ -19,22 +19,26 @@ class MyDataset(Dataset):
             self.vocab_size = args.vocab_size
             rank_zero_info(f"Current vocab size = {self.vocab_size} (make sure it's correct)")
 
-            if args.data_file.endswith('/'):
-                d_all = []
-                for p in os.listdir(args.data_file):
-                    if p.endswith(".idx"):
-                        d_all += [p[:-4]]
-                d_all.sort()
-                rank_zero_info(d_all)
-                exit(0)
-            else:
+            if args.my_pile_version == 1:
                 self.data = MMapIndexedDataset(args.data_file)
-                self.data_size = len(self.data._bin_buffer) // 2
+                self.data_size = len(self.data._bin_buffer) // self.data._index._dtype_size
                 rank_zero_info(f"Data has {self.data_size} tokens.")
+            else:
+                data_list = open(args.data_file, "r", encoding='utf-8').read().strip().split('\n')
+                data_list = [i.strip().split(' ') for i in data_list]
+                self.data = []
+                self.data_size = int(data_list[-1][-1])
+                rank_zero_info(f"Data has {self.data_size} chunks.")
+                for d in data_list:
+                    data = MMapIndexedDataset(d[0])
+                    data_size = len(data._bin_buffer) // data._index._dtype_size
+                    assert (data_size - args.ctx_len) == int(d[1])
+                    self.data += [[int(d[-1]), int(d[1]), data]]
+                # rank_zero_info(self.data)
 
             if args.my_qa_mask > 0:
                 self.data_pile = MMapIndexedDataset('/fsx/BlinkDL/pile/pile_20B_tokenizer_text_document')
-                self.data_pile_size = len(self.data_pile._bin_buffer) // 2
+                self.data_pile_size = len(self.data_pile._bin_buffer) // self.data._index._dtype_size
 
             if args.my_pile_stage > 0:
                 # assert self.data_size == 332115325534 and self.vocab_size == 50277
@@ -184,7 +188,17 @@ class MyDataset(Dataset):
                     i = np.random.randint(0, self.data_size - req_len)
 
                 if args.data_type == "binidx":
-                    dix = data.get(idx=0, offset=i, length=req_len).astype(int)
+                    if args.my_pile_version == 1:
+                        dix = data.get(idx=0, offset=i, length=req_len).astype(int)
+                    else:
+                        # self.data : cutoff, chunk_count, data
+                        for j in range(len(data)):
+                            if i < data[j][0]:
+                                ii = i
+                                i = (i - (data[j-1][0] if j > 0 else 0)) % data[j][1]
+                                dix = data[j][2].get(idx=0, offset=i, length=req_len).astype(int)
+                                # print(ii, j, i)
+                                break
                 elif args.data_type == "numpy":
                     dix = data[i : i + req_len]
                 else:
diff --git a/RWKV-v4neo/train.py b/RWKV-v4neo/train.py
index 873bd52..3368c8c 100644
--- a/RWKV-v4neo/train.py
+++ b/RWKV-v4neo/train.py
@@ -80,8 +80,9 @@ if __name__ == "__main__":
     parser.add_argument("--beta1", default=0.9, type=float)
     parser.add_argument("--beta2", default=0.99, type=float)  # use 0.999 when your model is close to convergence
     parser.add_argument("--adam_eps", default=1e-8, type=float)
-
     parser.add_argument("--grad_cp", default=0, type=int)  # gradient checkpt: saves VRAM, but slower
+
+    parser.add_argument("--my_pile_version", default=1, type=int)  # my special pile version
     parser.add_argument("--my_pile_stage", default=0, type=int)  # my special pile mode
     parser.add_argument("--my_pile_shift", default=-1, type=int)  # my special pile mode - text shift
     parser.add_argument("--my_pile_edecay", default=0, type=int)
@@ -157,18 +158,27 @@ if __name__ == "__main__":
 
     if args.my_pile_stage > 0:
         magic_prime_bak = args.magic_prime
-        if args.ctx_len == 1024:
-            args.magic_prime = 324331313
-            args.epoch_count = 8043
-        elif args.ctx_len == 2048:
-            args.magic_prime = 162165671
-            args.epoch_count = 4021
-        elif args.ctx_len == 4096:
-            args.magic_prime = 81082817
-            args.epoch_count = 2010
-        elif args.ctx_len == 8192:
-            args.magic_prime = 40541399
-            args.epoch_count = 1005
+
+        if args.my_pile_version == 1:
+            if args.ctx_len == 1024:
+                args.magic_prime = 324331313
+                args.epoch_count = 8043
+            elif args.ctx_len == 2048:
+                args.magic_prime = 162165671
+                args.epoch_count = 4021
+            elif args.ctx_len == 4096:
+                args.magic_prime = 81082817
+                args.epoch_count = 2010
+            elif args.ctx_len == 8192:
+                args.magic_prime = 40541399
+                args.epoch_count = 1005
+        else:
+            if args.ctx_len == 4096:
+                args.magic_prime = 423736637
+                args.epoch_count = 10508
+            elif args.ctx_len == 8192:
+                args.magic_prime = 211868309
+                args.epoch_count = 5253
         if args.my_pile_shift < 0:
             args.my_pile_shift = 0