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avx512_supported

competitive::tools::avx_helper

Function avx512_supported 

Source 
pub fn avx512_supported() -> bool
Examples found in repository?
crates/competitive/src/tools/avx_helper.rs (line 43)
40pub fn simd_backend() -> SimdBackend {
41    #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
42    {
43        if avx512_enabled() && avx512_supported() {
44            return SimdBackend::Avx512;
45        }
46        if is_x86_feature_detected!("avx2") {
47            return SimdBackend::Avx2;
48        }
49    }
50    SimdBackend::Scalar
51}
More examples
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crates/competitive/src/num/mint/montgomery_dot_product.rs (line 47)
43    fn add_scaled_assign(x: &mut [MInt<Self>], y: &[MInt<Self>], a: &MInt<Self>) {
44        assert_eq!(x.len(), y.len());
45        #[cfg(target_arch = "x86_64")]
46        if x.len() >= 16 {
47            if x.len() >= 64 && avx512_enabled() && avx512_supported() {
48                unsafe { simd::add_scaled_avx512::<Self>(x, y, a) };
49                return;
50            }
51            if is_x86_feature_detected!("avx2") {
52                unsafe { simd::add_scaled_avx2::<Self>(x, y, a) };
53                return;
54            }
55        }
56        for (x, y) in x.iter_mut().zip(y) {
57            *x += *a * *y;
58        }
59    }