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style: format Rust workspace

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This commit is contained in:
Gahow Wang
2026-06-18 18:11:58 +08:00
parent 013465fc06
commit 531cd3fe08
57 changed files with 4045 additions and 1204 deletions
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40
crates/xserv-kernels/src/softmax.rs
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@@ -2,8 +2,20 @@ use std::ffi::c_void;
use xserv_tensor::{DType, Device, Tensor};
unsafe extern "C" {
fn launch_softmax_f32(x: *const c_void, out: *mut c_void, rows: i32, cols: i32, stream: *mut c_void);
fn launch_softmax_bf16(x: *const c_void, out: *mut c_void, rows: i32, cols: i32, stream: *mut c_void);
fn launch_softmax_f32(
x: *const c_void,
out: *mut c_void,
rows: i32,
cols: i32,
stream: *mut c_void,
);
fn launch_softmax_bf16(
x: *const c_void,
out: *mut c_void,
rows: i32,
cols: i32,
stream: *mut c_void,
);
}
/// Softmax along the last dimension.
@@ -14,19 +26,31 @@ pub fn softmax(x: &Tensor) -> Tensor {
let cols = *x.shape().last().unwrap();
let rows = x.numel() / cols;
assert!(rows <= i32::MAX as usize, "too many rows for i32 kernel param");
assert!(cols <= i32::MAX as usize, "cols too large for i32 kernel param");
assert!(
rows <= i32::MAX as usize,
"too many rows for i32 kernel param"
);
assert!(
cols <= i32::MAX as usize,
"cols too large for i32 kernel param"
);
let out = Tensor::empty(x.shape(), x.dtype(), x.device());
unsafe {
match x.dtype() {
DType::F32 => launch_softmax_f32(
x.data_ptr() as _, out.data_ptr() as *mut c_void,
rows as i32, cols as i32, xserv_cuda::current_stream_raw(),
x.data_ptr() as _,
out.data_ptr() as *mut c_void,
rows as i32,
cols as i32,
xserv_cuda::current_stream_raw(),
),
DType::BF16 => launch_softmax_bf16(
x.data_ptr() as _, out.data_ptr() as *mut c_void,
rows as i32, cols as i32, xserv_cuda::current_stream_raw(),
x.data_ptr() as _,
out.data_ptr() as *mut c_void,
rows as i32,
cols as i32,
xserv_cuda::current_stream_raw(),
),
_ => panic!("unsupported dtype for softmax"),
}