app.py

"""
import gradio as gr

def mental_chat(message, history):
    return givetext(patienttext,newmodel,newtokenizer)
 
demo = gr.ChatInterface(mental_chat)

demo.launch()
"""

#pip install huggingface_hub

#python -c "from huggingface_hub.hf_api import HfFolder; HfFolder.save_token('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')"


#!pip install accelerate
#!pip install -i 



import gradio as gr
import torch
from peft import PeftModel, PeftConfig
from transformers import AutoModelForCausalLM, AutoTokenizer

# ##### ##### ##### ##### #####

peft_model_id = "charansr/llama2-7b-chat-hf-therapist"

config = PeftConfig.from_pretrained(peft_model_id,
                                   use_auth_token="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", load_in_4bit=True)

newmodel = AutoModelForCausalLM.from_pretrained(config.base_model_name_or_path, return_dict=True, load_in_4bit=True,
                                                use_auth_token="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").to("cpu")

newtokenizer = AutoTokenizer.from_pretrained(config.base_model_name_or_path,
                                            use_auth_token="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", load_in_4bit=True).to("cpu")

# Load the Lora model
newmodel = PeftModel.from_pretrained(newmodel, peft_model_id,
                                    use_auth_token="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", load_in_4bit=True).to("cpu")

def givetext(input_text,lmodel,ltokenizer):
    try:
        eval_prompt_pt1 = "\nBelow is an instruction that describes a task. Write a response that appropriately completes the request.\n### Instruction: Act like a therapist and respond\n\n### Input: "
        eval_prompt_pt2="\n\n\n### Response:\n"
        eval_prompt=eval_prompt_pt1+input_text+eval_prompt_pt2
        print(eval_prompt,"\n\n")

        print("BEFORE PROCESSING MODEL INPUT")
        
        model_input = ltokenizer(eval_prompt, return_tensors="pt").to("cpu")

        print(" BEFORE EVAL LMODEL")
        
        lmodel.eval()

        print("BEFORE DOING TORCH.NO_GRAD()")
        
        with torch.no_grad():
            #print("BEFORE RETURNING")

            #print("BEFORE ATTEMPTING TO MOVE LMODEL TO CPU")
            
            #lmodel = lmodel.to("cpu")

            #print("BEFORE ATTEMPTING .cpu()")

            #lmodel.cpu()
            
            print("BEFORE GENERATING LMODEL")
            
            lmodel_generated = lmodel.generate(**model_input, max_new_tokens=1000)[0] # device and device_map (for "cpu") are not valid arguments

            print("BEFORE GENERATING LTOKENIZER")
            
            return (ltokenizer.decode(lmodel_generated, skip_special_tokens=True))
            #return (ltokenizer.decode(lmodel.generate(**model_input, max_new_tokens=1000)[0], skip_special_tokens=True))
            #return (ltokenizer.decode(lmodel.generate(**model_input, max_new_tokens=100)[0], skip_special_tokens=True))
    except Exception as error:
        print("Exception {error}".format(error = error))
        #txt1 = "My name is {fname}, I'm {age}".format(fname = "John", age = 36)

def mental_chat(message, history):
    print("BEFORE CALLING GIVETEXT")
    return givetext(message,newmodel,newtokenizer)

demo = gr.ChatInterface(mental_chat)

demo.launch() # 

"""

import gradio as gr
import torch
from peft import PeftModel, PeftConfig
from transformers import AutoModelForCausalLM, AutoTokenizer

peft_model_id = "charansr/llama2-7b-chat-hf-therapist"

# Load the Lora model
newmodel = PeftModel.from_pretrained(peft_model_id, use_auth_token="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", device_map="cpu",
                                    model_id=peft_model_id)

newtokenizer = AutoTokenizer.from_pretrained(peft_model_id, use_auth_token="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")

def givetext(input_text, lmodel, ltokenizer):
    eval_prompt_pt1 = \nBelow is an instruction that describes a task. Write a response that appropriately completes the request.\n### Instruction: Act like a therapist and respond\n\n### Input: "
    eval_prompt_pt2 = "\n\n\n### Response:\n"
    eval_prompt = eval_prompt_pt1 + input_text + eval_prompt_pt2
    print(eval_prompt, "\n\n")
    model_input = ltokenizer(eval_prompt, return_tensors="pt").to("cuda")

    lmodel.eval()
    with torch.no_grad():
        return ltokenizer.decode(lmodel.generate(**model_input, max_new_tokens=1000)[0], skip_special_tokens=True)

def mental_chat(message, history):
    return givetext(message, newmodel, newtokenizer)

demo = gr.ChatInterface(mental_chat)

demo.launch()
 
"""