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add cuda 129 backend #15416

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Merged
charliermarsh merged 3 commits into from
Aug 21, 2025
Merged

add cuda 129 backend #15416

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fd913dc
add cuda 129 backend
youkaichao Aug 21, 2025
90cd9b9
update schema.json
youkaichao Aug 21, 2025
5d76722
Run cargo dev generate-all
charliermarsh Aug 21, 2025
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16 changes: 14 additions & 2 deletions crates/uv-torch/src/backend.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,8 @@ pub enum TorchMode {
Auto,
/// Use the CPU-only PyTorch index.
Cpu,
/// Use the PyTorch index for CUDA 12.9.
Cu129,
/// Use the PyTorch index for CUDA 12.8.
Cu128,
/// Use the PyTorch index for CUDA 12.6.
Expand Down Expand Up @@ -208,6 +210,7 @@ impl TorchStrategy {
None => Ok(Self::Backend(TorchBackend::Cpu)),
},
TorchMode::Cpu => Ok(Self::Backend(TorchBackend::Cpu)),
TorchMode::Cu129 => Ok(Self::Backend(TorchBackend::Cu129)),
TorchMode::Cu128 => Ok(Self::Backend(TorchBackend::Cu128)),
TorchMode::Cu126 => Ok(Self::Backend(TorchBackend::Cu126)),
TorchMode::Cu125 => Ok(Self::Backend(TorchBackend::Cu125)),
Expand Down Expand Up @@ -380,6 +383,7 @@ impl TorchStrategy {
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum TorchBackend {
Cpu,
Cu129,
Cu128,
Cu126,
Cu125,
Expand Down Expand Up @@ -428,6 +432,7 @@ impl TorchBackend {
fn index_url(self) -> &'static IndexUrl {
match self {
Self::Cpu => &CPU_INDEX_URL,
Self::Cu129 => &CU129_INDEX_URL,
Self::Cu128 => &CU128_INDEX_URL,
Self::Cu126 => &CU126_INDEX_URL,
Self::Cu125 => &CU125_INDEX_URL,
Expand Down Expand Up @@ -491,6 +496,7 @@ impl TorchBackend {
pub fn cuda_version(&self) -> Option<Version> {
match self {
Self::Cpu => None,
Self::Cu129 => Some(Version::new([12, 9])),
Self::Cu128 => Some(Version::new([12, 8])),
Self::Cu126 => Some(Version::new([12, 6])),
Self::Cu125 => Some(Version::new([12, 5])),
Expand Down Expand Up @@ -539,6 +545,7 @@ impl TorchBackend {
pub fn rocm_version(&self) -> Option<Version> {
match self {
Self::Cpu => None,
Self::Cu129 => None,
Self::Cu128 => None,
Self::Cu126 => None,
Self::Cu125 => None,
Expand Down Expand Up @@ -590,6 +597,7 @@ impl FromStr for TorchBackend {
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"cpu" => Ok(Self::Cpu),
"cu129" => Ok(Self::Cu129),
"cu128" => Ok(Self::Cu128),
"cu126" => Ok(Self::Cu126),
"cu125" => Ok(Self::Cu125),
Expand Down Expand Up @@ -639,10 +647,11 @@ impl FromStr for TorchBackend {
/// Linux CUDA driver versions and the corresponding CUDA versions.
///
/// See: <https://github.com/pmeier/light-the-torch/blob/33397cbe45d07b51ad8ee76b004571a4c236e37f/light_the_torch/_cb.py#L150-L213>
static LINUX_CUDA_DRIVERS: LazyLock<[(TorchBackend, Version); 24]> = LazyLock::new(|| {
static LINUX_CUDA_DRIVERS: LazyLock<[(TorchBackend, Version); 25]> = LazyLock::new(|| {
[
// Table 2 from
// https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html
(TorchBackend::Cu129, Version::new([525, 60, 13])),
(TorchBackend::Cu128, Version::new([525, 60, 13])),
(TorchBackend::Cu126, Version::new([525, 60, 13])),
(TorchBackend::Cu125, Version::new([525, 60, 13])),
Expand Down Expand Up @@ -677,10 +686,11 @@ static LINUX_CUDA_DRIVERS: LazyLock<[(TorchBackend, Version); 24]> = LazyLock::n
/// Windows CUDA driver versions and the corresponding CUDA versions.
///
/// See: <https://github.com/pmeier/light-the-torch/blob/33397cbe45d07b51ad8ee76b004571a4c236e37f/light_the_torch/_cb.py#L150-L213>
static WINDOWS_CUDA_VERSIONS: LazyLock<[(TorchBackend, Version); 24]> = LazyLock::new(|| {
static WINDOWS_CUDA_VERSIONS: LazyLock<[(TorchBackend, Version); 25]> = LazyLock::new(|| {
[
// Table 2 from
// https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html
(TorchBackend::Cu129, Version::new([528, 33])),
(TorchBackend::Cu128, Version::new([528, 33])),
(TorchBackend::Cu126, Version::new([528, 33])),
(TorchBackend::Cu125, Version::new([528, 33])),
Expand Down Expand Up @@ -781,6 +791,8 @@ static LINUX_AMD_GPU_DRIVERS: LazyLock<[(TorchBackend, AmdGpuArchitecture); 44]>

static CPU_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/cpu").unwrap());
static CU129_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/cu129").unwrap());
static CU128_INDEX_URL: LazyLock<IndexUrl> =
LazyLock::new(|| IndexUrl::from_str("https://download.pytorch.org/whl/cu128").unwrap());
static CU126_INDEX_URL: LazyLock<IndexUrl> =
Expand Down
3 changes: 3 additions & 0 deletions docs/reference/cli.md
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Expand Up @@ -3701,6 +3701,7 @@ by <code>--python-version</code>.</p>
<ul>
<li><code>auto</code>: Select the appropriate PyTorch index based on the operating system and CUDA driver version</li>
<li><code>cpu</code>: Use the CPU-only PyTorch index</li>
<li><code>cu129</code>: Use the PyTorch index for CUDA 12.9</li>
<li><code>cu128</code>: Use the PyTorch index for CUDA 12.8</li>
<li><code>cu126</code>: Use the PyTorch index for CUDA 12.6</li>
<li><code>cu125</code>: Use the PyTorch index for CUDA 12.5</li>
Expand Down Expand Up @@ -3973,6 +3974,7 @@ be used with caution, as it can modify the system Python installation.</p>
<ul>
<li><code>auto</code>: Select the appropriate PyTorch index based on the operating system and CUDA driver version</li>
<li><code>cpu</code>: Use the CPU-only PyTorch index</li>
<li><code>cu129</code>: Use the PyTorch index for CUDA 12.9</li>
<li><code>cu128</code>: Use the PyTorch index for CUDA 12.8</li>
<li><code>cu126</code>: Use the PyTorch index for CUDA 12.6</li>
<li><code>cu125</code>: Use the PyTorch index for CUDA 12.5</li>
Expand Down Expand Up @@ -4271,6 +4273,7 @@ should be used with caution, as it can modify the system Python installation.</p
<ul>
<li><code>auto</code>: Select the appropriate PyTorch index based on the operating system and CUDA driver version</li>
<li><code>cpu</code>: Use the CPU-only PyTorch index</li>
<li><code>cu129</code>: Use the PyTorch index for CUDA 12.9</li>
<li><code>cu128</code>: Use the PyTorch index for CUDA 12.8</li>
<li><code>cu126</code>: Use the PyTorch index for CUDA 12.6</li>
<li><code>cu125</code>: Use the PyTorch index for CUDA 12.5</li>
Expand Down
5 changes: 5 additions & 0 deletions uv.schema.json
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