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#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum Device {
Cpu,
Cuda,
}
pub enum Cpu {}
impl Cpu {
pub fn get_num_threads() -> i64 {
let res = unsafe_torch!({ torch_sys::atc_get_num_threads() });
i64::from(res)
}
pub fn set_num_threads(n: i64) {
unsafe_torch!({ torch_sys::atc_set_num_threads(n as i32) })
}
}
pub enum Cuda {}
impl Cuda {
pub fn device_count() -> i64 {
let res = unsafe_torch!({ torch_sys::atc_cuda_device_count() });
i64::from(res)
}
pub fn is_available() -> bool {
unsafe_torch!({ torch_sys::atc_cuda_is_available() }) != 0
}
pub fn cudnn_is_available() -> bool {
unsafe_torch!({ torch_sys::atc_cudnn_is_available() }) != 0
}
pub fn cudnn_set_benchmark(b: bool) {
unsafe_torch!({ torch_sys::atc_set_benchmark_cudnn(if b { 1 } else { 0 }) })
}
}
impl Device {
pub(super) fn c_int(self) -> libc::c_int {
match self {
Device::Cpu => 0,
Device::Cuda => 1,
}
}
pub(super) fn of_c_int(v: libc::c_int) -> Self {
match v {
0 => Device::Cpu,
1 => Device::Cuda,
_ => panic!("unexpected device {}", v),
}
}
pub fn cuda_if_available() -> Device {
if Cuda::is_available() {
Device::Cuda
} else {
Device::Cpu
}
}
}