DLL import error

[alphaDeng]

there are something wrong while i exectute the python script about dpctl....

i install dpctl from pypl，install it by using pip command.Then i tried to test it by execture a python script in documentation.And the python interpreter return a error, the error is as follows:

Traceback (most recent call last):
File "d:\software\programming\miniconda39\lib\site-packages\dpctl_init_.py", line 34, in
from dpctl.sycl_context import SyclContext
File "D:\software\programming\python\lib\site-packages\dpctl_init.py", line 34, in
from dpctl._sycl_context import SyclContext
ImportError: DLL load failed while importing _sycl_context: 找不到指定的模块。

it seem that .pyd file didn't work,but i don't know the reason.

is there any way to solve this problem?

[oleksandr-pavlyk]

The version of dpctl on PyPI is very much out of date (https://pypi.org/project/dpctl/#history) at 0.11.3

Failure of dpctl._sycl_context to import indicates failure to find and load dependent libraries, such as DPC++ Runtime library libsycld.dll which must exist on your computer (installed independently, i.e. from oneAPI installation) but must also be of the version compatible with the version of the DPC++ compiler used to build the dpctl binary package.

Could you please try installing dpctl using conda? Its advantage is that it would also install dependent libraries.

conda create -n dpctl -c intel dpctl

[alphaDeng]

it‘s work! It can find my CPU,and tell me more imformation about my CPU:

Get a list of all devices:

Name            AMD Ryzen 7 4800H with Radeon Graphics
Driver version  6.4.0.37
Vendor          Intel(R) Corporation
Filter string   opencl:cpu:0

=======================================

Get the list of only OpenCL devices:

Name            AMD Ryzen 7 4800H with Radeon Graphics
Driver version  6.4.0.37
Vendor          Intel(R) Corporation
Filter string   opencl:cpu:0

=======================================

Get all OpenCL CPU devices:

Name            AMD Ryzen 7 4800H with Radeon Graphics
Driver version  6.4.0.37
Vendor          Intel(R) Corporation
Filter string   opencl:cpu:0

=======================================

but it's possible that let dpctl find my GPU（RTX2060，CUDA11.4），maybe i should download something form conda?

Thank you!

[oleksandr-pavlyk]

dpctl depends on DPC++ runtime to find devices, and oneAPI DPC++ supports only Intel GPU devices out of the box. However, CodePlay provides oneAPI DPC++ plugins that enable support of NVidia and AMD GPUs.

Once you install these, dpctl should start seeing your RTX2060 gpu. The dpctl installable through conda will not, however, be able to run kernels on this gpu. To do that one need to recompile dpctl after the relevant plugin is installed.

See discission #1124 for more details.