Add support for cuDSS lib (#931)

* Fix cudss in conda

* Add cudss depenencies

* Fix windows

* Update version

* Add `cudss` to `SITE_PACKAGES_LIBDIRS_LINUX_OTHER`; add `nvidia-cudss-cu12` in pyproject.toml

* Release notes update for 1.2.1

* Update pathfinder version to 1.2.1 (for release)

* Add nvidia logo in cuda_pathfinder/DESCRIPTION.rst

Preview: https://test.pypi.org/project/cuda-pathfinder/1.2.1.dev202508291538/

---------

Co-authored-by: Ralf W. Grosse-Kunstleve <[email protected]>

Author: ZzEeKkAa

cuda_pathfinder/DESCRIPTION.rst

@@ -5,6 +5,10 @@
 cuda-pathfinder: Utilities for locating CUDA components
 *******************************************************
 
+.. image:: https://img.shields.io/badge/NVIDIA-black?logo=nvidia
+   :target: https://www.nvidia.com/
+   :alt: NVIDIA
+
 `cuda.pathfinder <https://nvidia.github.io/cuda-python/cuda-pathfinder/>`_
 aims to be a one-stop solution for locating CUDA components. Currently
 it supports locating and loading dynamic libraries (``.so``, ``.dll``);

cuda_pathfinder/cuda/pathfinder/_dynamic_libs/supported_nvidia_libs.py

@@ -85,6 +85,7 @@
 DIRECT_DEPENDENCIES = DIRECT_DEPENDENCIES_CTK | {
     "mathdx": ("nvrtc",),
     "cufftMp": ("nvshmem_host",),
+    "cudss": ("cublas", "cublasLt"),
 }
 
 # Based on these released files:
@@ -240,6 +241,7 @@
 SUPPORTED_LINUX_SONAMES_OTHER = {
     "cufftMp": ("libcufftMp.so.11",),
     "mathdx": ("libmathdx.so.0",),
+    "cudss": ("libcudss.so.0",),
     "nvpl_fftw": ("libnvpl_fftw.so.0",),
     "nvshmem_host": ("libnvshmem_host.so.3",),
 }
@@ -399,6 +401,7 @@
 }
 SUPPORTED_WINDOWS_DLLS_OTHER = {
     "mathdx": ("mathdx64_0.dll",),
+    "cudss": ("cudss64_0.dll",),
 }
 SUPPORTED_WINDOWS_DLLS = SUPPORTED_WINDOWS_DLLS_CTK | SUPPORTED_WINDOWS_DLLS_OTHER
 
@@ -441,6 +444,7 @@
     "nvvm": ("nvidia/cu13/lib", "nvidia/cuda_nvcc/nvvm/lib64"),
 }
 SITE_PACKAGES_LIBDIRS_LINUX_OTHER = {
+    "cudss": ("nvidia/cu12/lib",),
     "cufftMp": ("nvidia/cufftmp/cu12/lib",),
     "mathdx": ("nvidia/cu13/lib", "nvidia/cu12/lib"),
     "nvpl_fftw": ("nvpl/lib",),

cuda_pathfinder/cuda/pathfinder/_version.py

@@ -1,4 +1,4 @@
 # SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-__version__ = "1.2.0"
+__version__ = "1.2.1"

cuda_pathfinder/docs/nv-versions.json

@@ -3,6 +3,10 @@
         "version": "latest",
         "url": "https://nvidia.github.io/cuda-python/cuda-pathfinder/latest/"
     },
+    {
+        "version": "1.2.1",
+        "url": "https://nvidia.github.io/cuda-python/cuda-pathfinder/1.2.1/"
+    },
     {
         "version": "1.2.0",
         "url": "https://nvidia.github.io/cuda-python/cuda-pathfinder/1.2.0/"

cuda_pathfinder/docs/source/release.rst

@@ -7,6 +7,7 @@ Release Notes
 .. toctree::
    :maxdepth: 3
 
+   1.2.1 <release/1.2.1-notes>
    1.2.0 <release/1.2.0-notes>
    1.1.0 <release/1.1.0-notes>
    1.0.0 <release/1.0.0-notes>

cuda_pathfinder/docs/source/release/1.2.1-notes.rst

@@ -0,0 +1,15 @@
+.. SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+.. SPDX-License-Identifier: Apache-2.0
+
+.. module:: cuda.pathfinder
+
+``cuda-pathfinder`` 1.2.1 Release notes
+=======================================
+
+Released on Aug 29, 2025
+
+
+Highlights
+----------
+
+* Support cuDSS library (`PR #931 <https://github.com/NVIDIA/cuda-python/pull/931>`_)

cuda_pathfinder/pyproject.toml

@@ -18,6 +18,7 @@ nvidia_wheels_cu12 = [
     "cuda-toolkit[nvcc,cublas,nvrtc,cudart,cufft,curand,cusolver,cusparse,npp,nvfatbin,nvjitlink,nvjpeg]==12.*",
     "cuda-toolkit[cufile]==12.*; sys_platform != 'win32'",
     "nvidia-libmathdx-cu12",
+    "nvidia-cudss-cu12",
     "nvidia-cufftmp-cu12; sys_platform != 'win32'",
     "nvidia-nvshmem-cu12; sys_platform != 'win32'",
 ]