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feat: cuda-oxide support #12

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Merged
sebcrozet merged 3 commits into from
Sep 30, 2026
Merged

feat: cuda-oxide support #12

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00b3f55
Add a `cuda-oxide` feature (CUDA kernels compiled by cuda-oxide)
sebcrozet Sep 17, 2026
75e8df6
fix: do not forward the cuda-oxide feature to vortx-shaders on the host
sebcrozet Sep 24, 2026
46cc5f8
chore: temporary switch to the github version of khal
sebcrozet Sep 30, 2026
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16 changes: 12 additions & 4 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,12 @@ webgpu = [ "khal/webgpu" ]
cpu = ["khal/cpu", "vortx-shaders/cpu"]
cpu-parallel = ["cpu", "vortx-shaders/cpu-parallel"]
cuda = ["khal/cuda", "khal-builder/cuda", "vortx-shaders/cuda"]
# Native CUDA with kernels compiled by cuda-oxide (`cargo oxide`) instead of
# rust-cuda's `cargo cuda`. Implies `cuda`.
# Not forwarded to `vortx-shaders/cuda-oxide`: khal-builder enables that in its
# own `cargo oxide` build; in the host build it would break the CPU backend
# (GPU-only libdevice externs in khal-std's `Float`).
cuda-oxide = ["cuda", "khal-builder/cuda-oxide"]
metal = ["khal/metal"]
push_constants = ["khal/push_constants", "vortx-shaders/push_constants"]
subgroup_ops = ["khal/subgroup_ops", "vortx-shaders/subgroup_ops"]
Expand Down Expand Up @@ -62,8 +68,10 @@ khal-builder = "0.3"
vortx-shaders = { version = "0.4", path = "./vortx-shaders" }

[patch.crates-io]
#khal-builder = { path = "../khal/crates/khal-builder" }
#khal = { path = "../khal/crates/khal" }
#khal-std = { path = "../khal/crates/khal-std" }
#khal-derive = { path = "../khal/crates/khal-derive" }
# khal from GitHub: the `cuda-oxide` feature (and the cubin/PTX build
# fixes) are not on crates.io yet.
khal-builder = { git = "https://github.com/dimforge/khal", branch = "main" }
khal = { git = "https://github.com/dimforge/khal", branch = "main" }
khal-std = { git = "https://github.com/dimforge/khal", branch = "main" }
khal-derive = { git = "https://github.com/dimforge/khal", branch = "main" }
#glamx = { git = "https://github.com/dimforge/glamx", branch = "bytemuck" }
3 changes: 3 additions & 0 deletions vortx-shaders/Cargo.toml
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Expand Up @@ -22,6 +22,9 @@ subgroup_ops = []
cpu = ["khal-std/cpu", "khal/cpu"]
cpu-parallel = ["cpu", "khal-std/cpu-parallel"]
cuda = ["khal-std/cuda", "khal/cuda"]
# Compile the CUDA kernels with the cuda-oxide backend (host-target unified
# interception) instead of rust-cuda.
cuda-oxide = ["cuda", "khal-std/cuda-oxide"]
# Enables machine-learning (llm inference, reinforcement learning, etc.) operators.
ml = []

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