初始化项目，由ModelHub XC社区提供模型
Model: Kezmark/Mordant-3B-Think Source: Original Platform
This commit is contained in:
ModelHub XC
350
mordant-prompt-enhancer/Mordant-Prompt-Enhancer.py
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350
mordant-prompt-enhancer/Mordant-Prompt-Enhancer.py
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@@ -0,0 +1,350 @@
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import os
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import gc
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import threading
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from typing import Optional
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import torch
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from llama_cpp import Llama
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from comfy import model_management
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import folder_paths
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# -------------------------------------------------------------------
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# 1. Helpers for GGUF file listing & resolution (unchanged)
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# -------------------------------------------------------------------
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_CACHE = {}
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_CACHE_LOCK = threading.Lock()
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def _list_gguf_files():
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candidates = []
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base_dirs = []
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try:
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base_dirs.extend(folder_paths.get_folder_paths("text_encoders"))
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except Exception:
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pass
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for base in base_dirs:
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if not base or not os.path.isdir(base):
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continue
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for root, _, files in os.walk(base):
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for name in files:
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if name.lower().endswith(".gguf"):
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full = os.path.join(root, name)
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try:
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rel = os.path.relpath(full, base)
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if rel not in candidates:
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candidates.append(rel)
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except Exception:
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if full not in candidates:
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candidates.append(full)
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if "<manual_path>" not in candidates:
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candidates.append("<manual_path>")
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return candidates
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def _resolve_model_path(model_name: str, manual_model_path: str = "") -> str:
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if os.path.isabs(model_name) and os.path.isfile(model_name):
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return model_name
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if model_name == "<manual_path>":
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p = (manual_model_path or "").strip()
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if not p:
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raise ValueError("model is <manual_path> but manual_model_path is empty")
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if not os.path.isfile(p):
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raise FileNotFoundError(f"GGUF model not found: {p}")
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return p
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full = folder_paths.get_full_path("text_encoders", model_name)
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if full and os.path.isfile(full):
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return full
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try:
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for base in folder_paths.get_folder_paths("text_encoders"):
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probe = os.path.join(base, model_name)
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if os.path.isfile(probe):
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return probe
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except Exception:
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pass
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raise FileNotFoundError(f"Could not resolve GGUF model path for: {model_name}")
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def _build_messages(system_prompt: str, user_prompt: str):
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messages = []
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if system_prompt.strip():
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messages.append({"role": "system", "content": system_prompt.strip()})
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messages.append({"role": "user", "content": user_prompt.strip()})
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return messages
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def _assemble_prompt(messages: list, model_family: str) -> str:
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prompt = ""
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if model_family == "granite":
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for msg in messages:
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prompt += f"<|start_of_role|>{msg['role']}<|end_of_role|>{msg['content']}<|end_of_text|>\n"
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prompt += "<|start_of_role|>assistant<|end_of_role|><think>\n"
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else:
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for msg in messages:
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prompt += f"<|im_start|>{msg['role']}\n{msg['content']}<|im_end|>\n"
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prompt += "<|im_start|>assistant\n<think>"
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return prompt
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# -------------------------------------------------------------------
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# 2. Lookup table for Mordant models (unchanged)
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# -------------------------------------------------------------------
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MORDANT_INFO = {
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"mordant-1.2b": {
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"layers": 16,
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"bf16_total_gb": 2.35,
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"per_layer": {
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"bf16": 2.35 / 16,
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"q8_0": 1.27 / 16,
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"q6_k_m": 1.01682 / 16,
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"q5_k_m": None,
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"q4_k_m": None,
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}
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},
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"mordant-3b": {
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"layers": 40,
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"bf16_total_gb": 6.99,
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"per_layer": {
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"bf16": 6.99 / 40,
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"q8_0": 3.86 / 40,
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"q6_k_m": 3.05 / 40,
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"q5_k_m": 2.70 / 40,
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"q4_k_m": None,
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}
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},
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"mordant-7b": {
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"layers": 32,
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"bf16_total_gb": 16.29,
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"per_layer": {
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"bf16": 16.29 / 32,
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"q8_0": 9.58 / 32,
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"q6_k_m": 7.85 / 32,
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"q5_k_m": 7.08 / 32,
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"q4_k_m": None,
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}
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},
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"mordant-12b": {
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"layers": 40,
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"bf16_total_gb": 24.81,
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"per_layer": {
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"bf16": 24.81 / 40,
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"q8_0": 13.55 / 40,
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"q6_k_m": 10.64 / 40,
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"q5_k_m": 9.33 / 40,
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"q4_k_m": 8.11 / 40,
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}
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},
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}
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def _detect_model_info(model_path: str):
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try:
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llm_meta = Llama(model_path=model_path, vocab_only=True, n_gpu_layers=0, verbose=False)
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meta = llm_meta.metadata
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arch = meta.get("general.architecture", "unknown")
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total_layers = int(meta.get(f"{arch}.block_count", 0))
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quant_version = meta.get("general.quantization_version", "unknown").lower()
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if quant_version == "unknown":
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quant_version = meta.get("tokenizer.ggml.quantization_version", "unknown").lower()
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del llm_meta
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except Exception:
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fname = os.path.basename(model_path).lower()
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for name in MORDANT_INFO:
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if name in fname:
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info = MORDANT_INFO[name]
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total_layers = info["layers"]
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quant_version = "bf16"
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for q in ["q8_0", "q6_k_m", "q5_k_m", "q4_k_m", "q3_k_m", "q2_k_m"]:
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if q in fname:
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quant_version = q
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break
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break
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else:
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total_layers = 32
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quant_version = "bf16"
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model_name = None
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fname_lower = os.path.basename(model_path).lower()
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for name in MORDANT_INFO:
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if name in fname_lower:
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model_name = name
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break
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if model_name is None:
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file_size_gb = os.path.getsize(model_path) / (1024**3)
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per_layer_vram = file_size_gb / total_layers if total_layers > 0 else 0.5
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return (model_name or "unknown", total_layers, per_layer_vram, quant_version)
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info = MORDANT_INFO[model_name]
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layers = info["layers"]
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per_layer_dict = info.get("per_layer", {})
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per_layer_vram = None
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quant_clean = quant_version.replace("_0", "").replace("_1", "").lower()
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if quant_version in per_layer_dict and per_layer_dict[quant_version] is not None:
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per_layer_vram = per_layer_dict[quant_version]
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elif quant_clean in per_layer_dict and per_layer_dict[quant_clean] is not None:
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per_layer_vram = per_layer_dict[quant_clean]
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else:
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bf16_per_layer = per_layer_dict.get("bf16")
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if bf16_per_layer is None:
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bf16_total = info["bf16_total_gb"]
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bf16_per_layer = bf16_total / layers
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actual_file_size_gb = os.path.getsize(model_path) / (1024**3)
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per_layer_vram = actual_file_size_gb / layers
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return model_name, layers, per_layer_vram, quant_version
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def _auto_n_gpu_layers(model_path: str, verbose: bool = False) -> int:
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if not torch.cuda.is_available():
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return 0
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total_vram_gb = torch.cuda.get_device_properties(0).total_memory / (1024**3)
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usable_vram_gb = max(0, total_vram_gb - 2.0)
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model_name, max_layers, per_layer_vram, quant = _detect_model_info(model_path)
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if per_layer_vram <= 0:
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return 0
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n_layers = int(usable_vram_gb / per_layer_vram)
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n_layers = max(0, min(max_layers, n_layers))
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if verbose:
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print(f"[Mordant Enhancer] GPU VRAM: {total_vram_gb:.2f} GB, "
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f"Reserved: 2.00 GB, Usable: {usable_vram_gb:.2f} GB")
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print(f"[Mordant Enhancer] Model: {model_name}, Layers: {max_layers}, "
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f"Quant: {quant}, Per‑layer VRAM: {per_layer_vram:.4f} GB")
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print(f"[Mordant Enhancer] Auto‑selected GPU layers: {n_layers}")
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return n_layers
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# -------------------------------------------------------------------
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# 3. Main node class – Mordant Prompt Enhancer
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# -------------------------------------------------------------------
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class MordantPromptEnhancer:
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"model": (_list_gguf_files(),),
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"text": ("STRING", {"multiline": True, "default": "Rewrite this image prompt conservatively."}),
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"mode": (["enhancer", "general"], {"default": "enhancer"}),
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"enable_enhancement": ("BOOLEAN", {"default": True}),
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"sampling_mode": ("BOOLEAN", {"default": True}),
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"max_new_tokens": ("INT", {"default": 8192, "min": 1, "max": 8192}),
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"seed": ("INT", {"default": 0, "min": -1, "max": 2147483647}),
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"temperature": ("FLOAT", {"default": 0.7, "min": 0.0, "max": 5.0, "step": 0.05}),
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"top_p": ("FLOAT", {"default": 0.95, "min": 0.0, "max": 1.0, "step": 0.01}),
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"top_k": ("INT", {"default": 50, "min": 0, "max": 1000}),
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"repeat_penalty": ("FLOAT", {"default": 1.0, "min": 1.0, "max": 2.0, "step": 0.01}),
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"n_batch": ("INT", {"default": 2048, "min": 32, "max": 4096, "step": 32}),
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"keep_loaded": ("BOOLEAN", {"default": False}),
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"offload_kqv": ("BOOLEAN", {"default": True}),
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"flash_attn": ("BOOLEAN", {"default": True}),
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"verbose": ("BOOLEAN", {"default": False}),
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},
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"optional": {
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"manual_model_path": ("STRING", {"default": "", "multiline": False}),
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"custom_system_prompt": ("STRING", {"default": "", "multiline": True}),
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},
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}
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RETURN_TYPES = ("STRING", "STRING")
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RETURN_NAMES = ("composition", "thinking")
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FUNCTION = "generate"
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CATEGORY = "text/llm"
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def generate(self, model, text, mode, enable_enhancement,
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sampling_mode, max_new_tokens, seed, temperature, top_p, top_k,
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repeat_penalty, n_batch, keep_loaded, offload_kqv, flash_attn,
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verbose, manual_model_path="", custom_system_prompt=""):
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if not enable_enhancement:
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return (text, "")
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model_path = _resolve_model_path(model, manual_model_path)
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system_prompt = (custom_system_prompt or "").strip()
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n_ctx = 8192
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n_threads = os.cpu_count() or 4
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n_gpu_layers = _auto_n_gpu_layers(model_path, verbose=verbose)
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if not sampling_mode:
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eff_temp, eff_top_p, eff_top_k, eff_repeat_penalty = 0.2, 0.9, 20, max(repeat_penalty, 1.05)
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else:
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eff_temp, eff_top_p, eff_top_k, eff_repeat_penalty = temperature, top_p, top_k, repeat_penalty
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try:
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from llama_cpp import Llama
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except ImportError:
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raise RuntimeError("llama-cpp-python not installed.")
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def _create_model():
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kwargs = dict(
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model_path=model_path,
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n_ctx=n_ctx,
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n_gpu_layers=n_gpu_layers,
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n_batch=n_batch,
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verbose=verbose,
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cuda_graphs=False,
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use_mmap=False,
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use_mlock=False,
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)
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if n_threads is not None:
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kwargs["n_threads"] = n_threads
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try:
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kwargs["offload_kqv"] = offload_kqv
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kwargs["flash_attn"] = flash_attn
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return Llama(**kwargs)
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except TypeError:
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kwargs.pop("offload_kqv", None)
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kwargs.pop("flash_attn", None)
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return Llama(**kwargs)
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if keep_loaded:
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key = (model_path, n_ctx, n_gpu_layers, n_threads, n_batch, offload_kqv, flash_attn)
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with _CACHE_LOCK:
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llm = _CACHE.get(key)
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if llm is None:
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llm = _create_model()
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_CACHE[key] = llm
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else:
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llm = _create_model()
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actual_family = "chatml"
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if hasattr(llm, 'metadata'):
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chat_template = llm.metadata.get('tokenizer.chat_template', '').lower()
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if 'granite' in chat_template or 'start_of_role' in chat_template:
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actual_family = "granite"
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messages = _build_messages(system_prompt, text)
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prompt = _assemble_prompt(messages, actual_family)
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out = llm.create_completion(
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prompt=prompt,
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max_tokens=max_new_tokens,
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temperature=eff_temp,
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top_p=eff_top_p,
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top_k=eff_top_k,
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repeat_penalty=eff_repeat_penalty,
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seed=None if seed < 0 else seed,
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)
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result_text = out["choices"][0]["text"]
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if "</think>" in (result_text or ""):
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parts = (result_text or "").rsplit("</think>", 1)
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analysis_text, final_text = parts[0].strip(), parts[1].strip()
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else:
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analysis_text, final_text = "", (result_text or "").strip()
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return (final_text, analysis_text)
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# -------------------------------------------------------------------
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# 4. Node registration
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# -------------------------------------------------------------------
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NODE_CLASS_MAPPINGS = {
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"MordantPromptEnhancer": MordantPromptEnhancer,
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}
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NODE_DISPLAY_NAME_MAPPINGS = {
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"MordantPromptEnhancer": "Mordant Prompt Enhancer",
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}
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54
mordant-prompt-enhancer/Readme.txt
Normal file
54
mordant-prompt-enhancer/Readme.txt
Normal file
@@ -0,0 +1,54 @@
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Just place the Mordant-Prompt-Enhancer file in your ComfyUI custom_nodes folder.
|
||||
You can see in the example workflow how to connect everything. And the default settings should be good, and you can experiment after.
|
||||
The node looks for the models in the /models/text_encoders forlders, so place the mordant gguf there.
|
||||
|
||||
What does the mode do?
|
||||
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||||
Enhancer is your daily prompt enhancer mode, general is more of a llm.
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||||
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||||
enable_enhancement toggle, basically turns the node on and off, for when you want to just use your own un-altered prompt.
|
||||
|
||||
Everything else is fairly obvious, if not, you should just leave it as is. Keep_loaded is if you have enough vram to keep the model loaded after generation, otherwise, by default the node unloads it.
|
||||
|
||||
|
||||
**Installation**
|
||||
Place the node file in ComfyUI's `custom_nodes/` folder. The only additional dependency is `llama-cpp-python`.
|
||||
|
||||
**CPU‑only** (no GPU offloading):
|
||||
```bat
|
||||
# Windows portable
|
||||
python_embeded\python.exe -m pip install llama-cpp-python
|
||||
```
|
||||
```bash
|
||||
# Linux / venv / Mac
|
||||
pip install llama-cpp-python
|
||||
```
|
||||
|
||||
**GPU / CUDA — recommended** (pre‑built wheels, no compiler required):
|
||||
```bat
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||||
# Windows portable — replace cu121 with your CUDA version
|
||||
python_embeded\python.exe -m pip install llama-cpp-python --extra-index-url https://abetlen.github.io/llama-cpp-python/whl/cu121
|
||||
```
|
||||
```bash
|
||||
# Linux / venv — replace cu121 with your CUDA version
|
||||
pip install llama-cpp-python --extra-index-url https://abetlen.github.io/llama-cpp-python/whl/cu121
|
||||
```
|
||||
> Supported versions: `cu121` · `cu122` · `cu124` · `cu125` — run `nvidia-smi` to check yours (top‑right of output).
|
||||
|
||||
<details>
|
||||
<summary>Build from source (advanced — only if wheels fail)</summary>
|
||||
|
||||
Requires CUDA Toolkit, CMake, and C++ build tools (Visual Studio on Windows).
|
||||
|
||||
```bat
|
||||
# Windows
|
||||
set CMAKE_ARGS=-DGGML_CUDA=on
|
||||
python_embeded\python.exe -m pip install llama-cpp-python --force-reinstall --no-cache-dir
|
||||
```
|
||||
```bash
|
||||
# Linux
|
||||
CMAKE_ARGS="-DGGML_CUDA=on" pip install llama-cpp-python --force-reinstall --no-cache-dir
|
||||
```
|
||||
</details>
|
||||
|
||||
After restarting ComfyUI, the node appears under `text/llm` as **Mordant Prompt Enhancer**. Just pick your model and start composing.
|
||||
757
mordant-prompt-enhancer/Simple Example Workflow.json
Normal file
757
mordant-prompt-enhancer/Simple Example Workflow.json
Normal file
@@ -0,0 +1,757 @@
|
||||
{
|
||||
"id": "8e195d44-7179-4dfd-b08d-635cff8984d8",
|
||||
"revision": 0,
|
||||
"last_node_id": 37,
|
||||
"last_link_id": 51,
|
||||
"nodes": [
|
||||
{
|
||||
"id": 2,
|
||||
"type": "LoaderGGUFAdvanced",
|
||||
"pos": [
|
||||
22242.338811590744,
|
||||
11999.450597519388
|
||||
],
|
||||
"size": [
|
||||
270.8125,
|
||||
203.96875
|
||||
],
|
||||
"flags": {
|
||||
"pinned": true
|
||||
},
|
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Reference in New Issue
Block a user