Could not find function SetThreadDescription in Kernel32.dll

SYCL development
1

Hello,

After installing Codeplay on my machine (Windows 7 64bit, Nvidia GTX 1060), I would like to test some of the samples given in your Github.

Once cloned, cmake works perfectly with the given instructions on your website :

cmake .. -G "Visual Studio 16 2019" -A x64 -DComputeCpp_DIR="C:\Program Files\Codeplay\ComputeCpp"

I am able to build every projects with Visual Studio 2019, but I can’t launch any executables. I get the following message :

The procedure entry point SetThreadDescription could not be located in the dynamic library KERNEL32.dll
Exit status : -1073741511

Is there a problem with my installation ? I have also tried adding the following flag in the cmake command : -DCOMPUTECPP_BITCODE=ptx64 but i get the same error.

Thanks.

2

Nvidia GPU support is no longer officially supported by ComputeCpp, we have focused our efforts on adding CUDA support to DPC++, see the page here.

I have to admint I’ve never seen the error you are reporting, it could be driver related. What does computecpp_info output?

3

Oh ok I tought it was still experimental judging by this website’s graph : https://www.khronos.org/sycl/. So on the other hand OneAPI doesn’t support AMD’s GPU if I understand correctly ?

Here’s the return from computecpp_info :
cmd_ckYM6jF1lh|690x452

4

It is still strictly speaking experimental, but we are not officially supporting it which means we won’t guarantee fixing any issues. It looks like everything is set up correctly from the computecpp_info output. If you run some code on the host (CPU) does it work ok? You would need to use a host device selector to check this. This guide explains about selecting the host_selector.

5

Hello rod,

Sorry for the delay. I have switched to Windows 10 and the kernel32.dll is now correctly loaded at runtime. So it seems to be an driver error from Windows 7 as you expected.

But now it doesn’t found ComputeCpp_d.dll. So I copied and moved the lib directory to the executable location, and after lauching it, I have a std::bad_array_new_length at the beginning. I don’t understand why Visual Studio can’t find the folder ComputeCpp ; COMPUTECPP_ROOT_DIR is correctly set, cmake doesn’t output something weird.

I also report a strange behavior with Visual Studio on Windows 10 this time : when I try to create a new project based on the template ComputeCpp_SYCL_template, Visual Studio doesn’t found it.

Any idea of what’s going on ? Thank you.

6

Hi, can I check you are running in release mode? There was a problem which was meant to be resolved that occured in debug mode, it would be good to check it is not that manifesting itself again. Thanks!

7

It seems to work well in Release mode, i have added two screenshots to prove it :

Summary

debug_mode_computecpp
debug_mode_computecpp1123×492 38.7 KB

release_mode_computecpp
release_mode_computecpp1231×648 36.3 KB

I will add more details to this existing issue if it can helps you :

8

It looks like the debug issue is still present for you. Thanks for helping us with more information.

9

No problem, tell me if you need more informations. For now, I’ll try DPC++ as you suggest. Thanks.

10

Quick note for the original question: SetThreadDescription is not available in Windows 7, ComputeCpp only supports Windows 10.

11

Note here that the Windows debug issue will be fixed in v 2.8.0 which will be available soon.

12

Ah what was the error ? Anyway thanks again for the extra infos, I’ll give a feedback when the new version will be released.