dpctl
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IntelPython
`cumulative_logsumexp` raises Runtime warning `loop not vectorized` while running on CPU device
The below warning is raised from cumulative_logsumexp call during the first launch on CPU device:
import dpctl, dpctl.tensor as dpt
dpctl.__version__
# Out: '0.17.0dev0+331.g1243edc8f5'
a = dpt.ones(10, device='cpu')
dpt.cumulative_logsumexp(a)
warning: <unknown>:0:0: loop not vectorized: the optimizer was unable to perform the requested transformation; the transformation might be disabled or specified as part of an unsupported transformation ordering
# Out:
# usm_ndarray([1. , 1.69314718, 2.09861229, 2.38629436, 2.60943791,
# 2.79175947, 2.94591015, 3.07944154, 3.19722458, 3.30258509])
There is no warning when running on OCL or L0 GPU.
Environment details
$ conda list
# packages in environment at /home/xantvol/miniconda3/envs/dpnp_dev:
#
# Name Version Build Channel
_libgcc_mutex 0.1 conda_forge intel
_openmp_mutex 4.5 2_gnu intel
_sysroot_linux-64_curr_repodata_hack 3 h69a702a_14 conda-forge
astroid 3.0.3 pypi_0 pypi
asttokens 2.4.1 pyhd8ed1ab_0 conda-forge
attrs 23.2.0 pyh71513ae_0 conda-forge
beautifulsoup4 4.12.3 pyha770c72_0 conda-forge
brotli-python 1.1.0 py39h3d6467e_1 intel
bzip2 1.0.8 hb9a14ef_9 intel
c-ares 1.26.0 hd590300_0 intel
ca-certificates 2024.2.2 hbcca054_0 intel
certifi 2024.2.2 pyhd8ed1ab_0 intel
cffi 1.16.0 py39h7a31438_0 intel
cfgv 3.3.1 pypi_0 pypi
chardet 5.2.0 py39hf3d152e_1 intel
charset-normalizer 3.3.2 pyhd8ed1ab_0 intel
click 8.0.4 py39h06a4308_0 intel
cmake 3.29.2 h91dbaaa_1 conda-forge
codespell 2.2.6 pypi_0 pypi
colorama 0.4.6 pyhd8ed1ab_0 intel
conda 23.3.1 py39h535c160_1 http://satpkgserver.an.intel.com:8081
conda-build 24.1.2 py39hf3d152e_0 conda-forge
conda-index 0.4.0 pyhd8ed1ab_0 conda-forge
conda-package-handling 2.2.0 pyh38be061_0 intel
conda-package-streaming 0.9.0 pyhd8ed1ab_0 intel
coverage 5.5 py39h27cfd23_2 intel
cpplint 1.6.1 pypi_0 pypi
cryptography 42.0.4 py39hd4f0224_0 intel
cython 3.0.8 py39h3d6467e_0 intel
decorator 5.0.9 pyhd3eb1b0_0 intel
dill 0.3.8 pypi_0 pypi
distlib 0.3.6 pypi_0 pypi
distro 1.9.0 pyhd8ed1ab_0 conda-forge
dpcpp-cpp-rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
dpcpp-sycl-rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
dpcpp_cpp_rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
dpcpp_impl_linux-64 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
dpcpp_linux-64 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
dpctl 0.17.0dev0 py39h15de555_331 dppy/label/dev
dpnp 0.15.0.dev1+51.gad8d1c3033.dirty dev_0 <develop>
exceptiongroup 1.2.0 pyhd8ed1ab_2 conda-forge
executing 2.0.1 pyhd8ed1ab_0 conda-forge
filelock 3.6.0 pyhd3eb1b0_0 intel
icc_rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
icu 73.2 h59595ed_0 intel
identify 2.5.24 pypi_0 pypi
idna 3.6 pyhd8ed1ab_0 intel
importlib_resources 5.2.0 pyhd3eb1b0_1 intel
iniconfig 2.0.0 pyhd8ed1ab_0 conda-forge
intel-cmplr-lib-rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
intel-cmplr-lib-ur 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
intel-cmplr-lic-rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
intel-opencl-rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
intel-openmp 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
intel-sycl-rt 2024.2.0 intel_684 http://satpkgserver.an.intel.com:8081
intelpython 2024.2.0 0 http://satpkgserver.an.intel.com:8081
ipython 8.18.1 pyh707e725_3 conda-forge
isort 5.13.2 pypi_0 pypi
jedi 0.19.1 pyhd8ed1ab_0 conda-forge
jinja2 3.0.1 pyhd3eb1b0_0 intel
jsonpatch 1.33 pyhd8ed1ab_0 intel
jsonpointer 2.4 py39hf3d152e_3 intel
jsonschema 4.22.0 pyhd8ed1ab_0 conda-forge
jsonschema-specifications 2023.12.1 pyhd8ed1ab_0 conda-forge
kernel-headers_linux-64 4.18.0 he073ed8_2 conda-forge
keyutils 1.6.1 h166bdaf_0 conda-forge
krb5 1.21.2 h659d440_0 conda-forge
level-zero 1.16.0 h00ab1b0_0 intel
libarchive 3.7.2 h2aa1ff5_1 conda-forge
libcurl 8.7.1 hca28451_0 conda-forge
libedit 3.1.20210910 h7f8727e_0 intel
libev 4.33 h7f8727e_1 intel
libexpat 2.6.2 h59595ed_0 conda-forge
libffi 3.4.2 h7f98852_5 intel
libgcc-ng 13.2.0 h807b86a_5 intel
libgomp 13.2.0 h807b86a_5 intel
libiconv 1.17 hd590300_2 intel
liblief 0.14.1 hac33072_1 conda-forge
libllvm14 14.0.6 hcd5def8_4 intel
libnghttp2 1.58.0 h47da74e_0 conda-forge
libnsl 2.0.1 hd590300_0 intel
libsqlite 3.45.1 h2797004_0 intel
libssh2 1.11.0 h0841786_0 conda-forge
libstdcxx-ng 13.2.0 h7e041cc_5 intel
libuuid 2.38.1 h0b41bf4_0 intel
libuv 1.48.0 hd590300_0 conda-forge
libxml2 2.12.5 h232c23b_0 intel
libzlib 1.2.13 hd590300_5 intel
llvm 14.0.6 h32600fe_4 intel
lz4-c 1.9.4 hcb278e6_0 intel
lzo 2.10 h516909a_1000 intel
markupsafe 2.0.1 py39h27cfd23_0 intel
matplotlib-inline 0.1.7 pyhd8ed1ab_0 conda-forge
mccabe 0.7.0 pypi_0 pypi
menuinst 2.0.2 py39hf3d152e_0 conda-forge
mkl 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
mkl-devel 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
mkl-devel-dpcpp 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
mkl-dpcpp 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
mkl-include 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
mkl-service 2.4.1 py39h1e356de_0 http://satpkgserver.an.intel.com:8081
mkl_fft 1.3.8 py39h977b55c_71 http://satpkgserver.an.intel.com:8081
mkl_random 1.2.4 py39hae8aba8_91 http://satpkgserver.an.intel.com:8081
mkl_umath 0.1.1 py39h9ab9c7e_101 http://satpkgserver.an.intel.com:8081
more-itertools 10.2.0 pyhd8ed1ab_0 conda-forge
ncurses 6.4.20240210 h59595ed_0 conda-forge
ninja 1.10.2 py39hff7bd54_0 intel
nodeenv 1.8.0 pypi_0 pypi
numpy 1.26.4 py39h689b997_2 http://satpkgserver.an.intel.com:8081
numpy-base 1.26.4 py39h913173e_2 http://satpkgserver.an.intel.com:8081
onedpl-devel 2022.6.0 intel_414 http://satpkgserver.an.intel.com:8081
onemkl-sycl-blas 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-datafitting 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-dft 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-lapack 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-rng 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-sparse 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-stats 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
onemkl-sycl-vm 2024.2.0 intel_472 http://satpkgserver.an.intel.com:8081
openssl 3.2.1 hd590300_1 intel
packaging 23.2 pyhd8ed1ab_0 intel
parso 0.8.4 pyhd8ed1ab_0 conda-forge
patch 2.7.6 h7f98852_1002 conda-forge
patchelf 0.17.2 h58526e2_0 conda-forge
pexpect 4.9.0 pyhd8ed1ab_0 conda-forge
pickleshare 0.7.5 py_1003 conda-forge
pip 24.0 pyhd8ed1ab_0 intel
pkginfo 1.10.0 pyhd8ed1ab_0 conda-forge
pkgutil-resolve-name 1.3.10 pyhd8ed1ab_1 conda-forge
platformdirs 3.7.0 pypi_0 pypi
pluggy 1.4.0 pyhd8ed1ab_0 conda-forge
pre-commit 3.3.3 pypi_0 pypi
prompt-toolkit 3.0.42 pyha770c72_0 conda-forge
psutil 5.8.0 py39h27cfd23_2 intel
ptyprocess 0.7.0 pyhd3deb0d_0 conda-forge
pure_eval 0.2.2 pyhd8ed1ab_0 conda-forge
py-lief 0.14.1 py39h84cc369_1 conda-forge
pycosat 0.6.6 py39hd1e30aa_0 intel
pycparser 2.21 pyhd3eb1b0_0 intel
pygments 2.18.0 pyhd8ed1ab_0 conda-forge
pylint 3.0.3 pypi_0 pypi
pyopenssl 24.0.0 pyhd8ed1ab_0 intel
pysocks 1.7.1 pyha2e5f31_6 intel
pytest 8.1.2 pyhd8ed1ab_0 conda-forge
pytest-cov 5.0.0 pyhd8ed1ab_0 conda-forge
python 3.9.18 h4499717_0 http://satpkgserver.an.intel.com:8081
python-libarchive-c 4.0 py39hf3d152e_2 intel
python_abi 3.9 2_cp39 intel
pytz 2024.1 pyhd8ed1ab_0 intel
pyyaml 6.0.1 py39hd1e30aa_1 intel
readline 8.2 h8228510_1 intel
referencing 0.35.1 pyhd8ed1ab_0 conda-forge
requests 2.31.0 pyhd8ed1ab_0 intel
rhash 1.4.4 hd590300_0 conda-forge
ripgrep 14.1.0 he8a937b_0 conda-forge
rpds-py 0.18.1 py39ha68c5e3_0 conda-forge
ruamel.yaml 0.17.40 py39hd1e30aa_0 intel
ruamel.yaml.clib 0.2.8 py39hd1e30aa_0 intel
scikit-build 0.17.6 pyh4af843d_0 conda-forge
setuptools 69.1.0 pyhd8ed1ab_1 intel
six 1.16.0 pyhd3eb1b0_1 intel
soupsieve 2.5 pyhd8ed1ab_1 conda-forge
stack_data 0.6.2 pyhd8ed1ab_0 conda-forge
sysroot_linux-64 2.28 he073ed8_2 conda-forge
tbb 2021.13.0 intel_493 http://satpkgserver.an.intel.com:8081
tbb-devel 2021.13.0 intel_493 http://satpkgserver.an.intel.com:8081
tbb4py 2021.13.0 py39_intel_493 http://satpkgserver.an.intel.com:8081
tk 8.6.13 noxft_h4845f30_101 intel
toml 0.10.2 pyhd8ed1ab_0 conda-forge
tomli 2.0.1 pyhd8ed1ab_0 conda-forge
tomlkit 0.12.3 pypi_0 pypi
toolz 0.12.1 pyhd8ed1ab_0 intel
tqdm 4.66.2 pyhd8ed1ab_0 intel
traitlets 5.14.3 pyhd8ed1ab_0 conda-forge
typing-extensions 4.9.0 hd8ed1ab_0 intel
typing_extensions 4.9.0 pyha770c72_0 intel
tzdata 2024a h0c530f3_0 intel
urllib3 2.2.1 pyhd8ed1ab_0 intel
virtualenv 20.23.1 pypi_0 pypi
wcwidth 0.2.13 pyhd8ed1ab_0 conda-forge
wheel 0.42.0 pyhd8ed1ab_0 intel
xz 5.2.8 h5eee18b_0 intel
yaml 0.2.5 h7f98852_2 intel
zipp 3.15.0 pyhd8ed1ab_0 intel
zstandard 0.19.0 py39h29414ee_1 intel
zstd 1.5.6 ha6fb4c9_0 conda-forge
Driver versions
$ python -m dpctl -f
Platform 0 ::
Name Intel(R) OpenCL
Version OpenCL 3.0 LINUX
Vendor Intel(R) Corporation
Backend opencl
Num Devices 1
# 0
Name 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz
Version 2024.18.4.0.26_160000
Filter string opencl:cpu:0
Platform 1 ::
Name Intel(R) OpenCL Graphics
Version OpenCL 3.0
Vendor Intel(R) Corporation
Backend opencl
Num Devices 1
# 0
Name Intel(R) Graphics [0x9a49]
Version 23.52.28202.16
Filter string opencl:gpu:0
Platform 2 ::
Name Intel(R) FPGA Emulation Platform for OpenCL(TM)
Version OpenCL 1.2 Intel(R) FPGA SDK for OpenCL(TM), Version 20.3
Vendor Intel(R) Corporation
Backend opencl
Num Devices 1
# 0
Name Intel(R) FPGA Emulation Device
Version 2024.18.4.0.26_160000
Filter string opencl:accelerator:0
Platform 3 ::
Name Intel(R) Level-Zero
Version 1.3
Vendor Intel(R) Corporation
Backend ext_oneapi_level_zero
Num Devices 1
# 0
Name Intel(R) Graphics [0x9a49]
Version 1.3.28202
Filter string level_zero:gpu:0
WSL info
$ uname -a
Linux antonvol-mobl1 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Is it expected to have such kind of warning here?
Note, that the message does not show with DPC++ 2024.1:
(dev_dpctl) opavlyk@opavlyk-mobl:~/repos/application_examples/kde$ ipython
Python 3.12.3 | packaged by conda-forge | (main, Apr 15 2024, 18:38:13) [GCC 12.3.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.24.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import dpctl.tensor as dpt
In [2]: x = dpt.ones(10, device='cpu')
In [3]: dpt.cumulative_logsumexp(x)
Out[3]:
usm_ndarray([1. , 1.69314718, 2.09861229, 2.38629436, 2.60943791,
2.79175947, 2.94591015, 3.07944154, 3.19722458, 3.30258509])
In [4]: !icpx --version
Intel(R) oneAPI DPC++/C++ Compiler 2024.1.0 (2024.1.0.20240308)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/intel/oneapi/compiler/2024.1/bin/compiler
Configuration file: /opt/intel/oneapi/compiler/2024.1/bin/compiler/../icpx.cfg
In [5]: !sycl-ls
[opencl:acc:0] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device OpenCL 1.2 [2024.17.3.0.08_160000]
[opencl:cpu:1] Intel(R) OpenCL, 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz OpenCL 3.0 (Build 0) [2024.17.3.0.08_160000]
This warning is no longer printed to the screen with 2025.0.0. Closing
$ ipython
Python 3.12.3 | packaged by conda-forge | (main, Apr 15 2024, 18:38:13) [GCC 12.3.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.24.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import dpctl.tensor as dpt
In [2]: x = dpt.ones(10, device='cpu')
In [3]: dpt.cumulative_logsumexp(x)
Out[3]:
usm_ndarray([1. , 1.69314718, 2.09861229, 2.38629436, 2.60943791,
2.79175947, 2.94591015, 3.07944154, 3.19722458, 3.30258509])
In [4]: !icpx --version
Intel(R) oneAPI DPC++/C++ Compiler 2025.0.4 (2025.0.4.20241205)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/intel/oneapi/compiler/2025.0/bin/compiler
Configuration file: /opt/intel/oneapi/compiler/2025.0/bin/compiler/../icpx.cfg
In [5]: !sycl-ls
[level_zero:gpu][level_zero:0] Intel(R) oneAPI Unified Runtime over Level-Zero, Intel(R) Graphics [0x9a49] 12.0.0 [1.3.29735+27]
[opencl:cpu][opencl:0] Intel(R) OpenCL, 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz OpenCL 3.0 (Build 0) [2024.18.12.0.05_160000]
[opencl:gpu][opencl:1] Intel(R) OpenCL Graphics, Intel(R) Graphics [0x9a49] OpenCL 3.0 NEO [24.22.29735.27]