mamba复现—mamba+yolov8魔改（win）

Mamba复现出现的问题

安装下列步骤一步步走

一、

注：若是Windows环境下python一定是3.10版本的，要不然trition无法安装

conda create -n mamba python=3.10
conda activate mamba 
conda install cudatoolkit==11.8 -c nvidia
pip install torch==2.1.1 torchvision==0.16.1 torchaudio==2.1.1 --index-url https://download.pytorch.org/whl/cu118
conda install -c "nvidia/label/cuda-11.8.0" cuda-nvcc
conda install packaging

二、安装trition

由于是先在Windows10上进行调试，然后再在linux服务器上进行跑实验，所以这里先以Windows为准，
Windows下的trition无法直接pip，需要对其源码进行修改，网上有大神编译了Win下的二进制文件的安装包，但是只适用于python3.10！！！
下载到本地后，在anacoda终端中，切换到tritan所在文件夹，输入pip install 进行安装。

pip install triton-2.0.0-cp310-cp310-win_amd64.whl

mambassm_21">三、安装causal-conv1d、mamba-ssm

causal-conv1d == 1.1.1
mamba-ssm 1.1.2
（亲测有效，有博主mamba-ssm1.1.1，我试了会报错）

方法一：

1、causal-conv1d

由于是Windows下，所以采用源码安装，去git上下载（https://gitcode.com/Dao-AILab/causal-conv1d/tags?utm_source=csdn_github_accelerator&isLogin=1），
下载到本地后解压，然后切换到该文件下，输入pip install .进行安装，可能会出现以下报错，

User
WARNING: Ignoring invalid distribution -orch (c:\users\16786\.conda\envs\yolov8\lib\site-packages)
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting mamba-ssmDownloading https://pypi.tuna.tsinghua.edu.cn/packages/d3/12/dc792f3136fc8969ac6404f091135ab1aa9260a978a625a77a3cce5299dd/mamba_ssm-1.2.0.post1.tar.gz (34 kB)Preparing metadata (setup.py) ... errorerror: subprocess-exited-with-error× python setup.py egg_info did not run successfully.│ exit code: 1╰─> [11 lines of output]Traceback (most recent call last):File "<string>", line 2, in <module>File "<pip-setuptools-caller>", line 34, in <module>File "C:\Users\16786\AppData\Local\Temp\pip-install-qnerb67y\mamba-ssm_d5a352e22e5a430989b40813c061fa67\setup.py", line 103, in <module>raise RuntimeError(RuntimeError: mamba_ssm is only supported on CUDA 11.6 and above.  Note: make sure nvcc has a supported version by running nvcc -V.torch.__version__  = 1.13.1+cu117[end of output]note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed× Encountered error while generating package metadata.
╰─> See above for output.note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

原因有两种，
1）有时候缓存文件可能会导致安装出错。你可以尝试清理 pip 或 conda 的缓存

pip cache purge

2）由于cuda版本不对，我这边遇到的情况是版本不对，于是乎我又安装了CUDA11.8和CUDNN，就是双CUD环境，因为其他模型需要11.2的CUDA。
在这里插入图片描述
然后再输入pip install .就可以了。

之后在mamba源码 setup.py修改配置

FORCE_BUILD = os.getenv("MAMBA_FORCE_BUILD", "FALSE") == "FALSE"
SKIP_CUDA_BUILD = os.getenv("MAMBA_SKIP_CUDA_BUILD", "FALSE") == "FALSE"

mambassm_80">2、mamba-ssm

pip install mamba-ssm，有时候会出错

方法二：

下载causal-conv1d：

Dao-AILabcausal-conv1d
mamba-ssm：
state-spacesmamba
我的causal-conv1d 正常安装了，所以这边以mamba-ssm为例，下载后
pip install mamba_ssm-1.1.1+cu118torch2.1cxx11abiTRUE-cp310-cp310-linux_x86_64.whl
在这里插入图片描述

causal-conv1d文件下下载界面如下在这里插入图片描述
安装成功

也可以直接拉取Docker镜像

参考：直接使用Mamba基础环境docker镜像

此时可以进行mamba的编译了，但是会出现没有模块selective_scan_cuda，

方法一：

此时我们可以将mamba_ssm->ops/selective_scan_interface.py 的import selective_scan_cuda注释掉，然后对该文件的selective_scan_fn和mamba_inner_fn函数进行修改。

###原代码
def selective_scan_fn(u, delta, A, B, C, D=None, z=None, delta_bias=None, delta_softplus=False,return_last_state=False):"""if return_last_state is True, returns (out, last_state)last_state has shape (batch, dim, dstate). Note that the gradient of the last state isnot considered in the backward pass."""return SelectiveScanFn.apply(u, delta, A, B, C, D, z, delta_bias, delta_softplus, return_last_state)def mamba_inner_fn(xz, conv1d_weight, conv1d_bias, x_proj_weight, delta_proj_weight,out_proj_weight, out_proj_bias,A, B=None, C=None, D=None, delta_bias=None, B_proj_bias=None,C_proj_bias=None, delta_softplus=True
):return MambaInnerFn.apply(xz, conv1d_weight, conv1d_bias, x_proj_weight, delta_proj_weight,out_proj_weight, out_proj_bias,A, B, C, D, delta_bias, B_proj_bias, C_proj_bias, delta_softplus)

##修改后的代码
def selective_scan_fn(u, delta, A, B, C, D=None, z=None, delta_bias=None, delta_softplus=False,return_last_state=False):"""if return_last_state is True, returns (out, last_state)last_state has shape (batch, dim, dstate). Note that the gradient of the last state isnot considered in the backward pass."""return selective_scan_ref(u, delta, A, B, C, D, z, delta_bias, delta_softplus, return_last_state)def mamba_inner_fn(xz, conv1d_weight, conv1d_bias, x_proj_weight, delta_proj_weight,out_proj_weight, out_proj_bias,A, B=None, C=None, D=None, delta_bias=None, B_proj_bias=None,C_proj_bias=None, delta_softplus=True
):return mamba_inner_ref(xz, conv1d_weight, conv1d_bias, x_proj_weight, delta_proj_weight,out_proj_weight, out_proj_bias,A, B, C, D, delta_bias, B_proj_bias, C_proj_bias, delta_softplus)

yolov8进行魔改

这里我参考别的博主进行复现魔改，发现根本跑不动，陷入死循环，下面是该播主给的backone以及MambaLayer

# YOLOv8.0n backbone
backbone:# [from, repeats, module, args]- [-1, 1, Conv, [64, 3, 2]]  # 0-P1/2      # 0.  320- [-1, 1, Conv, [128, 3, 2]]  # 1-P2/4     # 1.  160- [-1, 3, MambaLayer, [128]]                # 2.  160- [-1, 1, Conv, [256, 3, 2]]  # 3-P3/8     # 3.  80- [-1, 6, MambaLayer, [256]]                # 4.  80- [-1, 1, Conv, [512, 3, 2]]  # 5-P4/16    # 5.  40- [-1, 6, MambaLayer, [512]]                # 6.  40- [-1, 1, Conv, [1024, 3, 2]]  # 7-P5/32   # 7.  20- [-1, 3, MambaLayer, [1024]]               # 8.  20- [-1, 1, SPPF, [1024, 5]]  # 9            # 9.  20

class MambaLayer(nn.Module):def __init__(self, dim, d_state=16, d_conv=4, expand=2):super().__init__()self.dim = dimself.norm = nn.LayerNorm(dim)self.mamba = Mamba(d_model=dim,  # Model dimension d_modeld_state=d_state,  # SSM state expansion factord_conv=d_conv,  # Local convolution widthexpand=expand,  # Block expansion factorbimamba_type="v2",)def forward(self, x):B, C = x.shape[:2]assert C == self.dimn_tokens = x.shape[2:].numel()img_dims = x.shape[2:]x_flat = x.reshape(B, C, n_tokens).transpose(-1, -2)x_norm = self.norm(x_flat)# x_norm = x_norm.to('cuda')x_mamba = self.mamba(x_norm)out = x_mamba.transpose(-1, -2).reshape(B, C, *img_dims)#out = out.to(x.device)return out**加粗样式**

然后我就按照他的进行复现，最后没能成功，感觉应该是我哪块有问题，然后我就将mamba直接和CBAM进行结合，效果好一点点吧，后面会进行更多的尝试。直接上我的代码

class MambaCBAM(nn.Module):# Convolutional Block Attention Moduledef __init__(self, c1, kernel_size=7, d_state=16, d_conv=4, expand=2):  # ch_in, kernelsprint(f"kernel_size = {kernel_size}")super().__init__()self.dim = c1self.channel_attention = ChannelAttention(c1)self.spatial_attention = SpatialAttention(kernel_size)# self.norm = nn.LayerNorm(self.dim)self.mamba = Mamba(d_model=self.dim,  # Model dimension d_modeld_state=d_state,  # SSM state expansion factord_conv=d_conv,  # Local convolution widthexpand=expand,  # Block expansion factorbimamba_type="v2",)def forward(self, x):# print(f"cbam x{x[0].size()}")cbma = self.spatial_attention(self.channel_attention(x))B, C = x.shape[:2]assert C == self.dimn_tokens = x.shape[2:].numel()  # 该行代码计算了输入张量x中获取了批量大小和通道数以外的所有维度的元素数量，即图像中的像素数或特征处理的长度。img_dims = x.shape[2:]  # 该行代码实现了输入张量x中获取批量大小和通道数除了所有维度的大小，即图像的高度和宽度。x_flat = x.reshape(B, C, n_tokens).transpose(-1, -2)if str(x.device) != 'cpu':x_mamba = self.mamba(x_flat)else:x_mamba = x_flatout= x_mamba.transpose(-1, -2).reshape(B, C, *img_dims)return out+cbma