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API_DEMO_CHAT.py

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+########################################################################################################
+# The RWKV Language Model - https://github.com/BlinkDL/RWKV-LM
+########################################################################################################
+
+print("RWKV Chat Simple Demo")
+
+import os, copy, types, gc, sys, re
+import numpy as np
+from prompt_toolkit import prompt
+import torch
+from transformers import AutoTokenizer
+
+torch.backends.cudnn.benchmark = True
+torch.backends.cudnn.allow_tf32 = True
+torch.backends.cuda.matmul.allow_tf32 = True
+os.environ["RWKV_V7_ON"] = "1" # enable this for rwkv-7 models
+os.environ["RWKV_JIT_ON"] = "1"
+os.environ["RWKV_CUDA_ON"] = "0"  # !!! '1' to compile CUDA kernel (10x faster), requires c++ compiler & cuda libraries !!!
+
+from rwkv.model import RWKV
+from rwkv.utils import PIPELINE
+
+########################################################################################################
+
+args = types.SimpleNamespace()
+
+args.strategy = "cuda fp16"  # use CUDA, fp16
+
+args.MODEL_NAME = "/home/alic-li/rwkv7-g1-tanslate/rwkv-final-sft-512"
+
+
+########################################################################################################
+STATE_NAME = None # use vanilla zero initial state?
+
+# use custom state? much better chat results (download from https://huggingface.co/BlinkDL/temp-latest-training-models/tree/main)
+# note: this is English Single-round QA state (will forget what you previously say)
+# STATE_NAME = "E://RWKV-Runner//models//rwkv-x060-eng_single_round_qa-1B6-20240516-ctx2048"
+########################################################################################################
+
+GEN_TEMP = 1.0
+GEN_TOP_P = 0.3
+GEN_alpha_presence = 0.5
+GEN_alpha_frequency = 0.5
+GEN_penalty_decay = 0.996
+
+if STATE_NAME != None:
+    GEN_TOP_P = 0.2
+    GEN_alpha_presence = 0.3
+    GEN_alpha_frequency = 0.3
+
+CHUNK_LEN = 16  # split input into chunks to save VRAM (shorter -> slower, but saves VRAM)
+
+########################################################################################################
+
+print(f"Loading model - {args.MODEL_NAME}")
+model = RWKV(model=args.MODEL_NAME, strategy=args.strategy)
+pipeline = PIPELINE(model, "rwkv_vocab_v20230424")
+tokenizer = AutoTokenizer.from_pretrained("./MiniMind2_tokenizer")
+
+model_tokens = []
+model_state = None
+
+if STATE_NAME != None: # load custom state
+    args = model.args
+    state_raw = torch.load(STATE_NAME + '.pth')
+    state_init = [None for i in range(args.n_layer * 3)]
+    for i in range(args.n_layer):
+        dd = model.strategy[i]
+        dev = dd.device
+        atype = dd.atype    
+        state_init[i*3+0] = torch.zeros(args.n_embd, dtype=atype, requires_grad=False, device=dev).contiguous()
+        state_init[i*3+1] = state_raw[f'blocks.{i}.att.time_state'].transpose(1,2).to(dtype=torch.float, device=dev).requires_grad_(False).contiguous()
+        state_init[i*3+2] = torch.zeros(args.n_embd, dtype=atype, requires_grad=False, device=dev).contiguous()
+    model_state = copy.deepcopy(state_init)
+
+def run_rnn(ctx):
+    global model_tokens, model_state
+
+    ctx = ctx.replace("\r\n", "\n")
+
+    tokens = tokenizer.encode(ctx)
+    tokens = [int(x) for x in tokens]
+    model_tokens += tokens
+
+    # print(f"### model ###\n{model_tokens}\n[{pipeline.decode(model_tokens)}]")  # debug
+
+    while len(tokens) > 0:
+        out, model_state = model.forward(tokens[:CHUNK_LEN], model_state)
+        tokens = tokens[CHUNK_LEN:]
+
+    return out
+
+if STATE_NAME == None: # use initial prompt if we are not loading a state
+    init_ctx = "User: hi" + "\n\n"
+    init_ctx += "Assistant: Hi. I am your assistant and I will provide expert full response in full details. Please feel free to ask any question and I will always answer it." + "\n\n"
+    # run_rnn(init_ctx)
+    # print(init_ctx, end="")
+
+while True:
+    msg = prompt("<|im_start|>user:")
+    msg = msg.strip()
+    msg = re.sub(r"\n+", "\n", msg)
+    if len(msg) > 0:
+        occurrence = {}
+        out_tokens = []
+        out_last = 0
+
+        out = run_rnn("<|im_start|>user\n" + msg + "<|im_end|>\n" + "<|im_start|>assistant\n")
+        print("\nAssistant:", end="")
+
+        eos_token_id = tokenizer.eos_token_id
+        pad_token_id = tokenizer.pad_token_id
+
+        for i in range(99999):
+            for n in occurrence:
+                out[n] -= GEN_alpha_presence + occurrence[n] * GEN_alpha_frequency  # repetition penalty
+            out[0] -= 1e10  # disable END_OF_TEXT
+
+            token = pipeline.sample_logits(out, temperature=GEN_TEMP, top_p=GEN_TOP_P)
+
+            out, model_state = model.forward([token], model_state)
+            model_tokens += [token]
+
+            out_tokens += [token]
+
+            for xxx in occurrence:
+                occurrence[xxx] *= GEN_penalty_decay
+            occurrence[token] = 1 + (occurrence[token] if token in occurrence else 0)
+
+            tmp = tokenizer.decode(out_tokens[out_last:])
+            if ("\ufffd" not in tmp) and (not tmp.endswith("\n")):
+                print(tmp, end="", flush=True)
+                out_last = i + 1
+
+            # 使用 token_id 判断是否为 eos_token
+            if token == eos_token_id:
+                print(tmp, end="\n\n", flush=True)
+                break
+    else:
+        print("!!! Error: please say something !!!")

MiniMind2_tokenizer/special_tokens_map.json

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+{
+  "bos_token": {
+    "content": "<|im_start|>",
+    "lstrip": false,
+    "normalized": false,
+    "rstrip": false,
+    "single_word": false
+  },
+  "eos_token": {
+    "content": "<|im_end|>",
+    "lstrip": false,
+    "normalized": false,
+    "rstrip": false,
+    "single_word": false
+  },
+  "pad_token": {
+    "content": "<|endoftext|>",
+    "lstrip": false,
+    "normalized": false,
+    "rstrip": false,
+    "single_word": false
+  },
+  "unk_token": {
+    "content": "<|endoftext|>",
+    "lstrip": false,
+    "normalized": false,
+    "rstrip": false,
+    "single_word": false
+  }
+}

MiniMind2_tokenizer/tokenizer_config.json

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+{
+  "add_bos_token": false,
+  "add_eos_token": false,
+  "add_prefix_space": false,
+  "added_tokens_decoder": {
+    "0": {
+      "content": "<|endoftext|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "1": {
+      "content": "<|im_start|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    },
+    "2": {
+      "content": "<|im_end|>",
+      "lstrip": false,
+      "normalized": false,
+      "rstrip": false,
+      "single_word": false,
+      "special": true
+    }
+  },
+  "additional_special_tokens": [],
+  "bos_token": "<|im_start|>",
+  "chat_template": "{% if messages[0]['role'] == 'system' %}{% set system_message = messages[0]['content'] %}{{ '<|im_start|>system\\n' + system_message + '<|im_end|>\\n' }}{% else %}{{ '<|im_start|>system\\nYou are a helpful assistant<|im_end|>\\n' }}{% endif %}{% for message in messages %}{% set content = message['content'] %}{% if message['role'] == 'user' %}{{ '<|im_start|>user\\n' + content + '<|im_end|>\\n<|im_start|>assistant\\n' }}{% elif message['role'] == 'assistant' %}{{ content + '<|im_end|>' + '\\n' }}{% endif %}{% endfor %}",
+  "clean_up_tokenization_spaces": false,
+  "eos_token": "<|im_end|>",
+  "extra_special_tokens": {},
+  "legacy": true,
+  "model_max_length": 32768,
+  "pad_token": "<|endoftext|>",
+  "sp_model_kwargs": {},
+  "spaces_between_special_tokens": false,
+  "tokenizer_class": "PreTrainedTokenizer",
+  "unk_token": "<|endoftext|>"
+}