20 lines
1.2 KiB
PowerShell
20 lines
1.2 KiB
PowerShell
param(
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[ValidateSet('cpu', 'cuda')][string]$Device = 'cpu'
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)
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$ErrorActionPreference = 'Stop'
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$backendRoot = Split-Path $PSScriptRoot -Parent
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$runtimeRoot = Join-Path $backendRoot '.venv-models'
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$runtimePython = Join-Path $runtimeRoot 'Scripts/python.exe'
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if (!(Test-Path -LiteralPath $runtimePython)) {
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& uv venv --python 3.12 $runtimeRoot
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if ($LASTEXITCODE -ne 0) { throw '无法创建模型运行环境' }
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}
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# CPU is the default. CUDA wheels include the runtime, not the NVIDIA driver.
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$torchIndex = if ($Device -eq 'cuda') { 'https://download.pytorch.org/whl/cu128' } else { 'https://download.pytorch.org/whl/cpu' }
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& uv pip install --python $runtimePython --index-url $torchIndex 'torch==2.9.1' 'torchaudio==2.9.1'
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if ($LASTEXITCODE -ne 0) { throw 'PyTorch 安装失败' }
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& uv pip install --python $runtimePython -r (Join-Path $PSScriptRoot 'model-requirements.lock') -c (Join-Path $PSScriptRoot 'model-requirements.txt')
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if ($LASTEXITCODE -ne 0) { throw '模型依赖安装失败' }
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& $runtimePython -c 'import torch; print({"torch":torch.__version__,"cuda_available":torch.cuda.is_available()})'
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if ($LASTEXITCODE -ne 0) { throw '模型运行环境检查失败' }
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