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Merged
rwgk merged 9 commits into from
Jul 20, 2026
Merged

Pathfinder: add support on cuQuantum library loading and header descriptors #2376

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c4d6451
Pathfinder: add support on cutensornet for library loading and header…
yangcal Jul 16, 2026
bde78ab
Pathfinder: add support on custatevec for library loading and header …
yangcal Jul 16, 2026
7b2fa01
Pathfinder: add support on cudensitymat for library loading and heade…
yangcal Jul 16, 2026
d4db8d1
Pathfinder: add support on custabilizer for library loading and heade…
yangcal Jul 16, 2026
c2f28f5
Pathfinder: add support on cupauliprop for library loading and header…
yangcal Jul 16, 2026
4fca191
switch to cuquantum metapackage to simplify dependency listing
yangcal Jul 16, 2026
a5c5102
Merge branch 'main' into pathfinder/cuquantum
yangcal Jul 16, 2026
ae950f8
Merge branch 'main' into pathfinder/cuquantum
rwgk Jul 19, 2026
d0df904
Merge branch 'main' into pathfinder/cuquantum
rwgk Jul 20, 2026
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42 changes: 42 additions & 0 deletions cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py
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Original file line number Diff line number Diff line change
Expand Up @@ -382,6 +382,48 @@ class DescriptorSpec:
site_packages_linux=("cutensor/lib",),
dependencies=("cutensor", "cublasLt", "cudart", "nccl"),
),
DescriptorSpec(
name="cudensitymat",
packaged_with="other",
linux_sonames=("libcudensitymat.so.0",),
site_packages_linux=("cuquantum/lib",),
dependencies=(
"cutensornet",
"cutensor",
"cusolver",
"cublasLt",
"cublas",
"curand",
"cusparse",
"nvJitLink",
),
),
DescriptorSpec(
name="cupauliprop",
packaged_with="other",
linux_sonames=("libcupauliprop.so.0",),
site_packages_linux=("cuquantum/lib",),
),
DescriptorSpec(
name="cutensornet",
packaged_with="other",
linux_sonames=("libcutensornet.so.2",),
site_packages_linux=("cuquantum/lib",),
dependencies=("cutensor", "cublas", "cusolver"),

@yangcal yangcal Jul 16, 2026

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While cutensornet also has linkage to cublasLt/cusparse/nvJitLink, these are transitive through cublas/cutensor/cusolver and do not need to be explicitly listed here

),
DescriptorSpec(
name="custabilizer",
packaged_with="other",
linux_sonames=("libcustabilizer.so.0",),
site_packages_linux=("cuquantum/lib",),
),
DescriptorSpec(
name="custatevec",
packaged_with="other",
linux_sonames=("libcustatevec.so.1",),
site_packages_linux=("cuquantum/lib",),
dependencies=("cublas", "cublasLt"),
),
DescriptorSpec(
name="nccl",
packaged_with="other",
Expand Down
45 changes: 45 additions & 0 deletions cuda_pathfinder/cuda/pathfinder/_headers/header_descriptor_catalog.py
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Expand Up @@ -183,6 +183,51 @@ class HeaderDescriptorSpec:
conda_targets_layout=False,
use_ctk_root_canary=False,
),
HeaderDescriptorSpec(
name="cudensitymat",
packaged_with="other",
header_basename="cudensitymat.h",
site_packages_dirs=("cuquantum/include",),
available_on_windows=False,
conda_targets_layout=False,
use_ctk_root_canary=False,
),
HeaderDescriptorSpec(
name="cupauliprop",
packaged_with="other",
header_basename="cupauliprop.h",
site_packages_dirs=("cuquantum/include",),
available_on_windows=False,
conda_targets_layout=False,
use_ctk_root_canary=False,
),
HeaderDescriptorSpec(
name="cutensornet",
packaged_with="other",
header_basename="cutensornet.h",
site_packages_dirs=("cuquantum/include",),
available_on_windows=False,
conda_targets_layout=False,
use_ctk_root_canary=False,
),
HeaderDescriptorSpec(
name="custabilizer",
packaged_with="other",
header_basename="custabilizer.h",
site_packages_dirs=("cuquantum/include",),
available_on_windows=False,
conda_targets_layout=False,
use_ctk_root_canary=False,
),
HeaderDescriptorSpec(
name="custatevec",
packaged_with="other",
header_basename="custatevec.h",
site_packages_dirs=("cuquantum/include",),
available_on_windows=False,
conda_targets_layout=False,
use_ctk_root_canary=False,
),
HeaderDescriptorSpec(
name="cutlass",
packaged_with="other",
Expand Down
2 changes: 2 additions & 0 deletions cuda_pathfinder/pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ test = [
cu12 = [
"cuda-toolkit[nvcc,cublas,nvrtc,cudart,cufft,curand,cusolver,cusparse,npp,nvfatbin,nvjitlink,nvjpeg,cccl,cupti,profiler]==12.*",
"cuda-toolkit[cufile]==12.*; sys_platform != 'win32'",
"cuquantum-cu12; sys_platform != 'win32'",
"cutensor-cu12",
"nvidia-cublasmp-cu12; sys_platform != 'win32'",
"nvidia-cudss-cu12",
Expand All @@ -34,6 +35,7 @@ cu12 = [
cu13 = [
"cuda-toolkit[nvcc,cublas,nvrtc,cudart,cufft,curand,cusolver,cusparse,npp,nvfatbin,nvjitlink,nvjpeg,cccl,cupti,profiler,nvvm]==13.*",
"cuda-toolkit[cufile]==13.*; sys_platform != 'win32'",
"cuquantum-cu13; sys_platform != 'win32'",
"cutensor-cu13",
"nvidia-cublasmp-cu13; sys_platform != 'win32'",
"nvidia-cudla; platform_system == 'Linux' and platform_machine == 'aarch64'",
Expand Down
7 changes: 6 additions & 1 deletion cuda_pathfinder/tests/test_find_nvidia_headers.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

# Currently these installations are only manually tested:
Expand Down Expand Up @@ -42,10 +42,15 @@
assert STRICTNESS in ("see_what_works", "all_must_work")

NON_CTK_IMPORTLIB_METADATA_DISTRIBUTIONS_NAMES = {
"cudensitymat": r"^cudensitymat-.*$",
"cupauliprop": r"^cupauliprop-.*$",
"cusolverMp": r"^nvidia-cusolvermp-.*$",
"cusparseLt": r"^nvidia-cusparselt-.*$",
"cute": r"^nvidia-cutlass$",
"cutensor": r"^cutensor-.*$",
"cutensornet": r"^cutensornet-.*$",
"custabilizer": r"^custabilizer-.*$",
"custatevec": r"^custatevec-.*$",
"cutlass": r"^nvidia-cutlass$",
"mathdx": r"^nvidia-libmathdx-.*$",
"nvshmem": r"^nvidia-nvshmem-.*$",
Expand Down
1 change: 1 addition & 0 deletions toolshed/conda_create_for_pathfinder_testing.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ set -u
# Keep this list aligned with the Linux-installable subset of
# cuda_pathfinder/pyproject.toml.
cpkgs=(
"cuquantum"
"cusparselt-dev"
"cutensor"
"cutlass"
Expand Down
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