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Extend getrs with trans_code argument #2563

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Merged
merged 7 commits into from
Sep 15, 2025
Merged

Extend getrs with trans_code argument #2563

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932a23a
Extend getrs with trans_code argument
vlad-perevezentsev Aug 18, 2025
5b5a2a5
Pass trans_code to getrs in dpnp_solve()
vlad-perevezentsev Aug 18, 2025
d306e5e
Merge master into pass_trans_to_getrs
vlad-perevezentsev Sep 4, 2025
ce878e6
Remove TODO
vlad-perevezentsev Sep 4, 2025
bfb82b6
Expose Transpose enum to Python via pybind11
vlad-perevezentsev Sep 12, 2025
4e259dd
Merge master into pass_trans_to_getrs
vlad-perevezentsev Sep 12, 2025
201d361
Merge master into pass_trans_to_getrs
vlad-perevezentsev Sep 12, 2025
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7 changes: 1 addition & 6 deletions dpnp/backend/extensions/lapack/getrs.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,7 @@ std::pair<sycl::event, sycl::event>
const dpctl::tensor::usm_ndarray &a_array,
const dpctl::tensor::usm_ndarray &ipiv_array,
const dpctl::tensor::usm_ndarray &b_array,
oneapi::mkl::transpose trans,
const std::vector<sycl::event> &depends)
{
const int a_array_nd = a_array.get_ndim();
Expand Down Expand Up @@ -264,12 +265,6 @@ std::pair<sycl::event, sycl::event>
const std::int64_t lda = std::max<size_t>(1UL, n);
const std::int64_t ldb = std::max<size_t>(1UL, n);

// Use transpose::T if the LU-factorized array is passed as C-contiguous.
// For F-contiguous we use transpose::N.
oneapi::mkl::transpose trans = is_a_array_c_contig
? oneapi::mkl::transpose::T
: oneapi::mkl::transpose::N;

char *a_array_data = a_array.get_data();
char *b_array_data = b_array.get_data();
char *ipiv_array_data = ipiv_array.get_data();
Expand Down
1 change: 1 addition & 0 deletions dpnp/backend/extensions/lapack/getrs.hpp
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Expand Up @@ -37,6 +37,7 @@ extern std::pair<sycl::event, sycl::event>
const dpctl::tensor::usm_ndarray &a_array,
const dpctl::tensor::usm_ndarray &ipiv_array,
const dpctl::tensor::usm_ndarray &b_array,
oneapi::mkl::transpose trans,
const std::vector<sycl::event> &depends = {});

extern void init_getrs_dispatch_vector(void);
Expand Down
10 changes: 9 additions & 1 deletion dpnp/backend/extensions/lapack/lapack_py.cpp
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Expand Up @@ -76,6 +76,13 @@ void init_dispatch_tables(void)

PYBIND11_MODULE(_lapack_impl, m)
{
// Expose oneMKL transpose enum to Python
py::enum_<oneapi::mkl::transpose>(m, "Transpose")
.value("N", oneapi::mkl::transpose::N)
.value("T", oneapi::mkl::transpose::T)
.value("C", oneapi::mkl::transpose::C)
.export_values(); // Optional, allows access like `Transpose.N`

// Register a custom LinAlgError exception in the dpnp.linalg submodule
py::module_ linalg_module = py::module_::import("dpnp.linalg");
py::register_exception<lapack_ext::LinAlgError>(
Expand Down Expand Up @@ -160,7 +167,8 @@ PYBIND11_MODULE(_lapack_impl, m)
"the solves of linear equations with an LU-factored "
"square coefficient matrix, with multiple right-hand sides",
py::arg("sycl_queue"), py::arg("a_array"), py::arg("ipiv_array"),
py::arg("b_array"), py::arg("depends") = py::list());
py::arg("b_array"), py::arg("trans") = oneapi::mkl::transpose::N,
py::arg("depends") = py::list());

m.def("_orgqr_batch", &lapack_ext::orgqr_batch,
"Call `_orgqr_batch` from OneMKL LAPACK library to return "
Expand Down
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