Bitsandbytes multi gpu 安装指南. Anyone got multiple-gpu parallel tr Nov 13, 2024 · bitsandbytes also presents ‘LLM. from_pretrained(model, Jul 1, 2024 · The installed version of bitsandbytes was compiled without GPU support. PyTorch CUDA versions. 0 cuda pytorch torchaudio 2. (venv) A:\\ai\\comfy_me\\ComfyUI>python -m bitsandbytes Could not find the bitsandbytes CUDA binary at bitsandbytes. . We are working towards its validation on ROCm and through Hugging Face libraries. int8())和量化函数。 Aug 25, 2022 · Hi, I'm trying to use the 8-bit optimizer with an A100 on a OpenPBS environment, which means that the machine I install the python virtual environment, with the bitsandbytes lib, doesn't have the GPU, but when I submit the job it does. Quite a complex setup. Windows is not supported at the moment. 04 to fix GLIBC_2. 已经安装了最新的bitsandbytes包,版本是bitsandbytes-0. I can't test 4bit bitsandbytes yet, but I did benchmark 8bit a little while ago. CPU: AMD Ryzen 9 5950X 16-Core Processor with 64GiB RAM. 或者是什么 argument of type ‘WindowsPath’ is not iterable. (yuhuang) 1 open folder J:\StableDiffusion\sdwebui,Click the address bar of the folder and enter CMD Aug 29, 2024 · Linux 6. 0 github库 在conda python环境下,通过pip install bitsandbytes直接安装,或是按源码编译安装,在python -m bitsandbytes检测时均出现异常。 Your device must have xformers, torch, BitsandBytes and triton support. Feb 14, 2025 · 🐛 Describe the bug. Same errors continue as above with 8bit but 4bit is the real solution for 30b-65b models. May 8, 2025 · The library includes quantization primitives for 8-bit and 4-bit operations through bitsandbytes. 0 - 12. e. 10. Pass the argument bitsandbytes是一个轻量级Python库,为CUDA自定义函数提供封装。该库主要提供8位优化器、矩阵乘法(LLM. 8-bit optimizers, 8-bit multiplication, and GPU quantization are unavailable. 04安装cuda(10. It only happens on multi GPU, not when the model is loaded on a single GPU. Meanwhile, advanced users may want to use ROCm/bitsandbytes fork for now. so on top of the cpu version. cuda. Resources: 8-bit Optimizer Paper — Video — Docs The majority of the optimizations described here also apply to multi-GPU setups! bitsandbytes is a quantization library that includes support for 4-bit and 8-bit Jul 14, 2023 · Hey everybody, for my masters thesis I’m currently trying to run class conditional diffusion on microscopy images. 0)和cudnn安装cuda10. Common paths include: /usr/local/cuda Apr 17, 2025 · 然而,在使用bitsandbytes库进行GPU加速时,有时候会出现CUDA detection failed的错误提示,下面来介绍如何解决这个问题。 如果以上两条检查都没有问题,但还是无法解决CUDA detection failed的问题,则可能是因为GPU驱动程序版本不匹配导致的问题。 Aug 15, 2023 · 然而,在使用bitsandbytes库进行GPU加速时,有时候会出现CUDA detection failed的错误提示,下面来介绍如何解决这个问题。如果以上两条检查都没有问题,但还是无法解决CUDA detection failed的问题,则可能是因为GPU驱动程序版本不匹配导致的问题。 Aug 10, 2022 · bitsandbytes. Reload to refresh your session. 37. See #issuecomment for more details. Determine the path of the CUDA version you want to use. 1 Jun 1, 2024 · System Info. But as long as the bitsandbytes related package is imported, torch. however looking back over the issues logs, the (sole) maintainer of the repo evidently does not have it as a priority (which may simply be a fair reflection of the priorities they have in their situation - but is clearly a big problem for others because the library has System Info The libbitsandbytes_cuda128. int8()’, the first multi-billion-parameter scale INT8 quantization procedure for inferencing transformers without any performance degradation. Bitsandbytes is a lightweight wrapper around CUDA custom functions, in particular 8-bit optimizers and quantization functions. Bitsandbytes can support ubuntu. 0; Running mixed-Int8 models - single GPU setup After installing the required libraries, the way to load your mixed 8-bit model is as follows: conda-forge / packages / bitsandbytes 0. 6 system) and another issue for linux (I guess this issue is related in this post), bitsandbytes have to compiled on ubuntu-20. These GPUs do not support the required instructions for the tool to run properly, resulting in errors or crashes. bitsandbytes is a library that facilitates quantization to improve the efficiency of deep learning models. These modules are supported on AMD Instinct accelerators. The bitsandbytes is a lightweight wrapper around CUDA custom functions, in particular 8-bit optimizers, matrix multiplication (LLM. com/OpenAccess-AI-Collective/axolotl. Welcome to the installation guide for the bitsandbytes library! This document provides step-by-step instructions to install bitsandbytes across various platforms and hardware configurations. Jan 15, 2025 · bitsandbytes与cuda版本对应包,Ubuntu18. Aug 10, 2022 · bitsandbytes. I beleive they don't even know its an issue. int8())和量化函数。 Had the same issue. I successfully loaded the quantized model (in4) using a single GPU with the following command: ''' CUDA_VISIBLE_DEVICES=0 vllm serve unsloth/Llama-3. Restart your notebook and make sure no cells initializes an Accelerator. Dec 19, 2024 · 文章浏览阅读1. May 5, 2023 · If I try using only LoRA (without 8-bit) and a smaller model - FlanT5-Base - I was able to run multi GPU training just fine with my script and python -m torch. 3w次,点赞14次,收藏27次。在部署大模型LLaMA时遇到bitsandbytes安装和使用异常,问题源于CUDA环境不纯净。通过删除所有CUDA版本,重新安装cuDNN和CUDA11. 1及其对应cudnn先查询自己电脑的显卡驱动版本,命令如下:nvidia-smi上面的图是为安装完成之后的截图,不过不影响,只需要看一下自己的驱动版本找到适配版本即可。 Mar 5, 2023 · Updated to latest QLora 4bit 0. Installing bitsandbytes# You signed in with another tab or window. Supported CUDA versions: 10. This does standard LoRA, QLoRA and full finetunes. generate() call returns gibberish if you used the flag load_in_8bit=True when loading the LLM. You should reinstall them following the official tutorials. 1 70B, a multi-GPU setup is often necessary. 5. But I can’t seem to get Multi-GPU working correctly. I found a big report on GitHub that suggested copying the libbitsandbytes_cuda117. (I thought it was a better implementation. 0_0 pytorch pytorch-cuda 12. pip install bitsandbytes == 0. int8()), and quantization functions. dll file does not exist on my RTX5090 Windows 11 system. I was planning to switch to bitsandbytes 4bit, but didn't realize this was not compatible with GPTQ. Jun 12, 2023 · Finetuning on multiple GPUs works pretty much out of the box for every finetune project I've tried. 04). 解决方案: 将bitsandbytes卸载. Unsloth only works if you have a NVIDIA GPU. 7 Cost-Performance Trade-offs When aiming for affordable hosting: Nov 20, 2024 · $ conda list | grep bitsandbytes bitsandbytes 0. If you’re interested in providing feedback or testing, check out the multi-backend section below. 45. 1. xx. CUDA bitsandbytes is only supported on CUDA GPUs for CUDA versions 11. X. Pass the argument has_fp16_weights=True (default) Int8 inference. 8 libs from somewhere like conda-forge and extract needed cuda libs into bitsandbytes/ dir, and bitsandbytes for cuda11. 4, but 在部署大模型LLaMA的过程中,需要安装量化工具包bitsandbytes,环境如下: 操作系统:Ubuntu 18. An AMD Epyc system with 3 MI210. 44. distributed. 我以为是自己电脑上装了多个版本的cuda,导致冲突。 bitsandbytes>=0. If the command succeeds and you still can't do multi-GPU finetuning, you should report this issue in bitsandbytes' github repo. As part of a recent refactoring effort, we will soon offer official multi-backend support. Installation: Note down version: conda list | grep cudatoolkit; Replace 111 with the version that you see: pip install bitsandbytes-cuda111; Usage: Feb 20, 2023 · load_in_8bit on multiple gpus meets RuntimeError: Expected all tensors to be on the same device, but found at least two devices, cuda:1 and cuda:0! #153 New issue Have a question about this project? Feb 20, 2023 · load_in_8bit on multiple gpus meets RuntimeError: Expected all tensors to be on the same device, but found at least two devices, cuda:1 and cuda:0! #153 New issue Have a question about this project? Mar 28, 2025 · Install the required dependencies. 1k次,点赞6次,收藏10次。我的服务器GPU架构有80和75(两种卡,百度如何查看GPU architechture可以在Nvidia官网找到),这里CUDA Targets却有一系列低版本,我的nvcc当然不支持,找教程提示可以在export 变量或者cmake -DCMAKE_CUDA_ARCHITECTURES直接设置,但我这里都没有用,所以上一步设置为OFF。 Aug 29, 2024 · This space is intended to receive feedback from users that are willing to help us by alpha testing the current implementation of the Intel backends (Intel CPU and XPU). May 2, 2024 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Aug 17, 2023 · I'm trying to load quantization like from transformers import LlamaForCausalLM from transformers import BitsAndBytesConfig model = '/model/' model = LlamaForCausalLM. May 17, 2024 · 然后查看torch是否支持gpu,依次在命令行中敲入,或直接编写py脚本执行均可。在安装时提示入口错误。经过排查发现是安装途径有问题。搞llama factory时环境出了问题,运行时会提示。_the installed version of bitsandbytes was compiled without gpu support. Apr 7, 2025 · The library includes quantization primitives for 8-bit & 4-bit operations, through bitsandbytes. At present, the Intel CPU and AMD ROCm backends are considered fully functional. Linear4bit and 8-bit optimizers through bitsandbytes. Here are some other potential causes. 7,然后在conda环境下安装bitsandbytes,最终成功解决报错问题。 Oct 25, 2023 · 文章浏览阅读2. Nov 27, 2023 · meta-llama/Llama-2–7b, 100 prompts, 100 tokens generated per prompt, 1–5x NVIDIA GeForce RTX 3090 (power cap 290 W) Multi GPU inference (batched) You signed in with another tab or window. int8 ()), and 8 & 4-bit quantization functions. The latest bitsandbytes package has been installed, version bitsandbytes-0. I don't see any other difference between the two runs except load_in_8bit=True, device_map="auto" and the smaller model. Resources: 8-bit Optimizer Paper — Video — Docs May 5, 2023 · If I try using only LoRA (without 8-bit) and a smaller model - FlanT5-Base - I was able to run multi GPU training just fine with my script and python -m torch. If you’re interested in providing feedback or testing, check out the bitsandbytes repository for more information. For this I need images with a resolution of 512x512, so I’m relying on a compute cluster provided by my university. 7k次,点赞2次,收藏7次。在尝试测试LLMWebuiDemo时遇到CUDA安装失败的问题,即使GPU可用。解决方案包括从GitHub手动下载bitsandbytes库,使用特定命令进行编译安装,并运行检查脚本来验证安装是否成功。. 04 GPU:4xA100 40G CUDA:11. Sep 21, 2023 · UserWarning: The installed version of bitsandbytes was compiled without GPU support. GPU: Advanced Micro Devices, Inc. Install the correct version of bitsandbytes by running: pip install bitsandbytes>=0. Oh, and --xformers and --deepspeed flags as well. 1_cudnn9. ) So, now I'm wondering what the optimal strategy is for running GPTQ models, given that we have autogptq and bitsandbytes 4bit at play. 1 I also checked on GitHub, and the latest version supports CUDA 12. 04 LTS HWE, ROCm 6. The latest version of bitsandbytes builds on: Mar 30, 2023 · LLM. nn模块实现多位线性层,bitsandbytes. TL;DR. 43. On a system with 4090 GPU and fastest possible single-core CPU (i9-13900K), testing on a 7B model I got these speeds: fp16 HF model: 50 tokens/s 4bit GPTQ model: 98 tokens/s 8bit bitsandbytes: 20 tokens/s LLM. bitsandbytes. 5 0 The bitsandbytes library is a lightweight Python wrapper around CUDA custom functions, in particular 8-bit optimizers, matrix multiplication (LLM. You signed in with another tab or window. Here's the best finetune codebase I'd found that supports QLoRA: https://github. 39. int8(): NVIDIA Turing (RTX 20xx; T4) or Ampere GPU (RTX 30xx; A4-A100); (a GPU from 2018 or newer). You switched accounts on another tab or window. optim模块提供优化器。目前正在拓展对更多硬件后端的支持,包括Intel CPU+GPU、AMD GPU和Apple Silicon,Windows平台的支持也在开发 Bitsandbytes + Unsloth: 63. Installation: Note down version: conda list | grep cudatoolkit; Replace 111 with the version that you see: pip install bitsandbytes-cuda111; Usage: Sep 4, 2023 · 我的服务器GPU架构有80和75(两种卡,百度如何查看GPU architechture可以在Nvidia官网找到),这里CUDA Targets却有一系列低版本,我的nvcc当然不支持,找教程提示可以在export 变量或者cmake -DCMAKE_CUDA_ARCHITECTURES直接设置,但我这里都没有用,所以上一步设置为OFF。 The majority of the optimizations described here also apply to multi-GPU setups! bitsandbytes is a quantization library that includes support for 4-bit and 8-bit I just tested out the multi-backend-refactor for ROCm (Ubuntu 22. int8()), and 8 & 4-bit quantization functions. Data Center GPU Max Series (Ponte Vecchio) Arc A-Series (Alchemist) Arc B-Series (Battlemage) 🚧 In Development: aarch64: ️ CPU: 〰️ Partial Support: 🟩 NVIDIA GPU: SM75, SM80, SM90, SM100: Full Support * 🪟 Windows: x86-64: ️ CPU: AVX2: 〰️ Partial Support: 🟩 NVIDIA GPU: SM50+ minimum SM75+ recommended: Full Support * 🟦 LLM. Make sure you also have disk space to train & save your model Ahh! Thanks. bitsandbytes is currently only supported on CUDA GPUs for CUDA versions 11. Apr 7, 2025 · The bitsandbytes library is a lightweight Python wrapper around CUDA custom functions, in particular 8-bit optimizers, matrix multiplication (LLM. )system ,AND CUDA Version: 11. 1 cuda120_py310hdc26961_1 conda-forge $ conda list | grep torch ffmpeg 4. 31. The system uses slurm to schedule batch jobs which are usually in the form of apptainer run containers. Nov 2, 2024 · 文章浏览阅读2. 8 安装成功_bitsandbytes安装 Aug 20, 2024 · 2. For bitsandbytes>=0. 6 Multi-GPU Setups For models as large as LLaMA 3. 1 ha16c6d3_6 pytorch pytorch-mutex 1. And surprisingly that worked even though that’s a marvelously ugly hack. 1 and 0. We're actively making multi GPU in the OSS! Dec 1, 2024 · Py之bitsandbytes:bitsandbytes的简介、安装、使用方法之详细攻略 目录 bitsandbytes的简介 bitsandbytes的安装 bitsandbytes的使用方法 bitsandbytes的简介 bitsandbytes是对CUDA自定义函数的轻量级封装,特别是针对8位优化器、矩阵乘法(LLM. CUDA The installed version of bitsandbytes was compiled without GPU support. Linear4bit and 8-bit optimizers through the bitsandbytes. Learn more about its use in Model quantization techniques. int8(): NVIDIA Turing (RTX 20xx; T4) or Ampere GPU (RTX 30xx; A4-A100); (a GPU from 2018 or older). However, there’s a multi-backend effort under way which is currently in alpha release, check the respective section below in case you’re interested to help us with early feedback. 0の場合、すべてのGPUがサポートされるはずです。 正しいバージョンのbitsandbytesをインストールするには、次のコマンドを実行してください: pip install bitsandbytes>=0. Paper-- Video-- Docs. The latest version of bitsandbytes builds on: Sep 28, 2023 · OR you are Linux distribution (Ubuntu, MacOS, etc. bitsandbytes 遇到CUDA Setup failed despite GPU being available. 8w次,点赞24次,收藏42次。 Py之bitsandbytes:bitsandbytes的简介、安装、使用方法之详细攻略目录bitsandbytes的简介bitsandbytes的安装bitsandbytes的使用方法bitsandbytes的简介 bitsandbytes是对CUDA自定义函数的轻量级封装,特别是针对8位优化器、矩阵乘法(LLM. Linear8bitLt and bitsandbytes. May 7, 2023 · 文章浏览阅读3. 欢迎来到 bitsandbytes 库的安装指南! 本文档提供了在各种平台和硬件配置上安装 bitsandbytes 的分步说明。 该库主要支持基于 CUDA 的 GPU,但团队正在积极努力为 AMD ROCm、Intel 和 Apple Silicon 等其他后端启用支持。 LLM. int8())以及8位和4位量化功能。通过bitsandbytes. 8. 0 The library includes quantization primitives for 8-bit & 4-bit operations, through bitsandbytes. It was the first research to propose quantization for models as large as 175B parameters. Intel CPU + GPU, AMD GPU, Apple Silicon. *head spins* Feb 18, 2025 · System Info I am under Linux Mint Xia (based on Ubuntu 24. nn. int8())和量化函数。 Mar 10, 2012 · (or just copy cuda11. 4k次,点赞11次,收藏8次。本文为安装bitsandbytes过程的记录,尝试从pip 和 源编译 bitsandbytes,过程中无 root 安装 cmake 和 gcc,最后 cmake 成功安装,gcc 安装失败。bitsandbyes 最后通过从 python 3. 1及10. 0, all GPUs should be supported. is_initialized() will be set to true. yy symbol issue. 8-bi Jul 25, 2023 · 文章浏览阅读2. 0 h9bf148f_0 pytorch pytorch 2. 39 version and the good news is that loading large models across 2 gpus works now but only in 4bit. 3-70B-Instruct-bnb-4bit You signed in with another tab or window. 1 py3. 使用conda 管理环境时加载大模型会遇到bitsandbytes无法识别cuda的情况: 此处windows系统: pip install bitsandbytes-windows linux 系统: 将bitsandbytes版本降低至0. Quantization represents weights Sep 13, 2024 · Py之bitsandbytes:bitsandbytes的简介、安装、使用方法之详细攻略 目录 bitsandbytes的简介 bitsandbytes的安装 bitsandbytes的使用方法 bitsandbytes的简介 bitsandbytes是对CUDA自定义函数的轻量级封装,特别是针对8位优化器、矩阵乘法(LLM. Training on 1 GPU results in an epoch time of 32-45min, which is not at all doable for me. It requires restart the session to see the updates. 10-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 12 Sep 2024 17:21:02 +0000 x86_64 GNU/Linux I am on archlinux with 7600 XT , everything works except bitsandbytes (torch , onnxruntime, etc . 3 hf484d3e_0 pytorch libjpeg-turbo 2. The optimization methods shown below can be combined with each other to achieve even better performance, and they also work for distributed GPUs. (yuhuang) 1 open folder J:\StableDiffusion\sdwebui,Click the address bar of the folder and enter CMD Mar 21, 2023 · OR you are Linux distribution (Ubuntu, MacOS, etc. 0 github库 在conda python环境下,通过pip install bitsandbytes直接安装,或是按源码编译安装,在python -m bitsandbytes检测时均出现异常。 Aug 17, 2023 · I'm trying to load quantization like from transformers import LlamaForCausalLM from transformers import BitsAndBytesConfig model = '/model/' model = LlamaForCausalLM. 12. I am referring to parallel training where each gpu has a full model. 8-bit optimizers and quantization: NVIDIA Kepler GPU or newer (>=GTX 78X). Some users of the bitsandbytes - 8 bit optimizer - by Tim Dettmers have reported issues when using the tool with older GPUs, such as Maxwell or Pascal. 0 (using the standard AMD ROCm repo)) on RDNA3 navi3x gfx1000 (W7900 and 7900XTX). 2 - 12. The library primarily supports CUDA-based GPUs, but the team is actively working on enabling support for additional backends like AMD ROCm, Intel, and Hi, Does anyone have a working example for finetuning LLaMa or Falcon on multiple GPUs? If it also has QLoRA that would be the best but afaik it's not implemented in bitsandbytes yet? Feb 22, 2024 · After installing the appropriate PyTorch I ran !pip install -U bitsandbytes (to install updated version). 3-70B-Instruct-bnb-4bit 作为最近重构工作的一部分,我们很快将提供官方的多后端支持。目前,此功能在预览 alpha 版本中提供,使我们能够收集用户的早期反馈,以改进功能并识别任何错误。 Feb 14, 2025 · 🐛 Describe the bug. bitsandbytes is a quantization library that supports 8-bit and 4-bit quantization. Dec 30, 2024 · 前言. 4 bitsandbytes: 0. bitsandbytes provides three main features for dramatically reducing memory consumption for inference and training: 8-bit optimizers uses block-wise quantization to maintain 32-bit performance at a small fraction of the memory cost. 0. 在Python开发中,bitsandbytes是一个非常有用的库,但许多新手在安装过程中会遇到各种问题。本文将详细讲解如何顺利安装bitsandbytes依赖。 Nov 1, 2023 · 1. 5; accelerateをインストールします: pip install accelerate>=0. Issues to discuss could be b Apr 12, 2023 · You signed in with another tab or window. We provide three main features for dramatically reducing memory consumption for inference and training: Feb 22, 2024 · If this command fails, it means that there is something wrong with your pytorch + accelerate environment. 5; Install accelerate pip install accelerate>=0. 38. Some bitsandbytes features may need a newer CUDA version than the one currently supported by PyTorch binaries from Conda and pip. [AMD/ATI] Navi 33 [Radeon RX 7600/7600 XT/7 This guide will demonstrate a few ways to optimize inference on a GPU. 0), the transformers model. So it may not be possible The majority of the optimizations described here also apply to multi-GPU setups! bitsandbytes is a quantization library that includes support for 4-bit and 8-bit Bitsandbytes quantization. 安装bitsandbytes-windows. Thank you for Some bitsandbytes features may need a newer CUDA version than the one currently supported by PyTorch binaries from Conda and pip. 即执行以下代码 Jan 6, 2023 · You signed in with another tab or window. Jun 23, 2023 · Bitsandbytes was not supported windows before, but my method can support windows. 7 cuDNN:8. Can load and run many models, often combined with accelerate for multi-GPU/CPU offloading and bitsandbytes for quantization. There are ongoing efforts to support further hardware backends, i. H Aug 3, 2023 · ValueError: To launch a multi-GPU training from your notebook, the Accelerator should only be initialized inside your training function. 10_cuda12. 10 改为 python 3. Consider: NVLink support for high-bandwidth GPU-to-GPU communication; PCIe bandwidth for data transfer between GPUs and CPU; 2. Bitsandbytes (integrated in HF’s Transformers and Text Generation Inference) currently does not officially support ROCm. 8765s So the GPTQ definitely is a large boost, but our bitsandbytes version is still faster :) Multi GPU is already in Llama Factory's integration of Unsloth, but it's in alpha stage - cannot guarantee the accuracy, or whether there are seg faults or other issues. In this case, you should follow these instructions to load a precompiled bitsandbytes binary. launch. bitsandbytes enables accessible large language models via k-bit quantization for PyTorch. 8, 0. The bitsandbytes library is currently only supported on Linux distributions. ) Jun 6, 2023 · For the tested bitsandbytes versions 0. Mixed 8-bit training with 16-bit main weights. May 24, 2023 · Testing 4bit qlora training on 33b llama and the training runs fine on 1x gpu but fails with the following using torchrun on 2x gpu. Currently, this feature is available in a preview alpha release, allowing us to gather early feedback from users to improve the functionality and identify any bugs. Intel CPU + GPU, AMD GPU, Apple Silicon, hopefully NPU. Following are Apr 17, 2025 · Assistant:" \ -n 512 --color -ngl 33 # -ngl: num GPU layers Hugging Face Transformers: The standard Python library for NLP. 0, when inferencing on multiple V100S GPUs (compute capability 7. May 5, 2023 · If I try using only LoRA (without 8-bit) and a smaller model - FlanT5-Base - I was able to run multi GPU training just fine with my script and python -m torch. 1 py310_cu121 pytorch bitsandbytes is only supported on CUDA GPUs for CUDA versions 11. optim module. However, there’s an ongoing multi-backend effort under development, which is currently in alpha. (yuhuang) 1 open folder J:\StableDiffusion\sdwebui,Click the address bar of the folder and enter CMD Jun 5, 2023 · So, Apple Silicon M1/M2 (ARM) support is much desired by people who want to use software which is dependent on bitsandbytes. You signed out in another tab or window. 0 2. 8 could be used on cuda11. ohwdpeednpqxratnpcakipoheptmmmpvflgxojrbtlkfxhmlhhugi