rstsr_openblas/linalg_auto_impl/
inv.rs

1use crate::DeviceBLAS;
2use rstsr_blas_traits::prelude::*;
3use rstsr_core::prelude_dev::*;
4use rstsr_linalg_traits::prelude_dev::*;
5
6#[duplicate_item(
7    ImplType                          Tr                               ;
8   [T, D, R: DataAPI<Data = Vec<T>>] [&TensorAny<R, T, DeviceBLAS, D> ];
9   [T, D                           ] [TensorView<'_, T, DeviceBLAS, D>];
10)]
11impl<ImplType> InvAPI<DeviceBLAS> for Tr
12where
13    T: BlasFloat,
14    D: DimAPI,
15    DeviceBLAS: LapackDriverAPI<T>,
16{
17    type Out = Tensor<T, DeviceBLAS, D>;
18    fn inv_f(self) -> Result<Self::Out> {
19        rstsr_assert_eq!(self.ndim(), 2, InvalidLayout, "Currently we can only handle 2-D matrix.")?;
20        let a = self.view().into_dim::<Ix2>();
21        let result = ref_impl_inv_f(a.into())?.into_owned();
22        Ok(result.into_dim::<IxD>().into_dim::<D>())
23    }
24}
25
26#[duplicate_item(
27    ImplType   Tr                              ;
28   ['a, T, D] [TensorMut<'a, T, DeviceBLAS, D>];
29   [    T, D] [Tensor<T, DeviceBLAS, D>       ];
30)]
31impl<ImplType> InvAPI<DeviceBLAS> for Tr
32where
33    T: BlasFloat,
34    D: DimAPI,
35    DeviceBLAS: LapackDriverAPI<T>,
36{
37    type Out = Tr;
38    fn inv_f(self) -> Result<Self::Out> {
39        rstsr_assert_eq!(self.ndim(), 2, InvalidLayout, "Currently we can only handle 2-D matrix.")?;
40        let mut a = self;
41        let a_view = a.view_mut().into_dim::<Ix2>();
42        let result = ref_impl_inv_f(a_view.into())?;
43        result.clone_to_mut();
44        Ok(a)
45    }
46}