HLS Compiler 24.1 error - aocl-clang.exe - dll entry point not found

[NoahHuguenin]

Good day,

I recently installed HLS Compiler 24.1 together with Quartus Prime Lite 23.1std in order to do the first HLS tests. 

I installed Visual Studio 2017 Community and the latest version of Microsoft Visual C++ Redistributables (2015-2022).

My OS is Windows 10 Home 10.0.19045 

Trying to test an HLS example, I enter the Visual Studio console by launching the init_hls.bat file in C:\intelFPGA_lite\23.1std\hls.

It seems to detect every dependency.

Launching the build.bat of an example in test-x86-64 mode returns the following error, translated below the image: 

"The procedure entry point [...] could not be located in the dynamic link library [...]."

This also happens for mathlib.dll, generationlib.dll and mip_common.dll. 

I tried deleting and reinstalling HLS Compiler and deleting and reinstalling MVC++ Redistributables. 

I also tried launchig build.bat in test-FPGA mode, changing the board from Arria10 to CycloneV, which returns the same error. 

Below are linked two threads that inquire about similar errors, but the original poster did not share if and how it was finally resolved.

aocl-clang.exe - Entry Point Not Found - Intel Community

HLS i++ compile failure for Quartus Prime 21.1.1 Lite - Intel Community

Any suggestions on how to proceed? 

Thank you in advance, 

Noah

[NoahHuguenin]

Updated to Windows 10 Home version 22H2, the error persists

[BoonBengT_Intel]

Hi @NoahHuguenin,

Thank you for posting in Intel community forum, hope all is well and apologies for the delayed in response.

Noted on the details of the error, a quick check on the installation path, did you managed to combine the installation path for Quartus Prime Lite and Intel HLS compiler together?

Could you possible share a screenshot of the path?

Also are you able to launch quartus lite and try to create a new project with CycloneV just to test on the quartus installation?

Hope to hear from you soon.

Best Wishes

BB

[whitepau]

I wonder if there are some permission limitations with building in the 'examples' directory.

When I try to compile the counter design on my machine, it runs fine if I first copy the 'counter' directory out of C:\intelFPGA_lite\23.1std\hls\examples, and somewhere else (e.g. C:\hls_customers\forum\counter).

I've also heard of issues with mixing versions of visual studio, e.g. if you already have 2022 installed, and then try to install 2017. The recommended solution there was to remove all visual studio installations, and install the oldest one first. (e.g. first 2017, then 2022).

https://learn.microsoft.com/en-gb/previous-versions/visualstudio/visual-studio-2015/install/install-visual-studio-versions-side-by-side?view=vs-2015&redirectedfrom=MSDN

Why are you installing the visual C++ redistributables? The necessary libraries should be included with visual studio:
https://www.intel.com/content/www/us/en/docs/programmable/683680/24-1/pro-edition-prerequisites.html 

[NoahHuguenin]

Hello and thank you for your answers.

Checking the Quartus project creation as @BoonBengT_Intel suggested, Quartus would freeze everytime a project is created.

This was fixed, as inspired by @whitepau 's suspicion, by unchecking the "Read Only" attribute from the intelFPGA_Lite folder.

However, the error in HLS example remains even when copying the example to a different folder. 

Perhaps it is not due to permissions, since the error seems to occur when readign the .dll files anyways. 

To answer your other questions: 

@BoonBengT_Intel 

C:\intelFPGA_lite\23.1std\hls is the installation path of HLS within the Quartus Lite folder. Below is a screenshot of the folder.

I assumed the combiled installation worked correctly, since running init_hls.bat seems to indicate that all dependencies (including Quartus) are found correctly.

@whitepau 

As for Microsoft Visual Studio, I only have the 2017 version. I didn't know the redistributables were already included! 

[whitepau]

You should have everything you need by installing visual studio 2017 along with the C++ support. Make sure everything is updated (here is the working configuration I have):

[NoahHuguenin]

I checked the Visual Studio installation and everything seems to be updated. 

Just in case, I let the Visual Studio installer add the C++ redistributables instead of installing them separately, but the error in HLS compilation remains the same

[whitepau]

Thanks for checking. I wonder if something is wrong with your installation/installer. Can you please attach the versions of those DLLs to this case? In the meantime, I'll upload the DLLs that come from my working installation. Please copy your existing dsdk.dll, generationlib.dll, mathlib.dll and mip_common.dll to a different directory before replacing them with mine.

[whitepau]

I'll also let you know now that HLS is deprecated, and we are encouraging users to explore its successor, the FPGA Support Package for oneAPI DPC++/C++ Compiler instead. 

[NoahHuguenin]

My .dll files are attached to this message. 

In any case, using the ones you provided yields the same result.

I plan on installing in a different computer soon. If that works, I will post the result in this thread. 

In parallel, I am looking into oneAPI as well

[whitepau · Accepted solution]

Thanks Noah. Please install Quartus 23.1lite, then add HLS as an 'upgrade', paying attention to step 3 of the Getting Started Guide. Make sure you remove/rename any version of HLS that exists in 23.1lite; I spoke with some people in engineering and the error you're seeing might appear if HLS 24.1 pro happens to pick up the libraries from HLS 23.1std.

[NoahHuguenin]

Hello again, so I reinstalled both Quartus Prime Lite 23.1 and HLS Compiler 24.1 in a new PC, and this time it does work correctly. 

So, I reckon it could have been either the OS, or the tool version - this time I made sure I installed the 2X.1 version. Perhaps last time I installed a 2X.1.1 version instead.

Thank you so much for your support, I am accepting your last message as solution to indicate that the issue is solved. 

[BoonBengT_Intel]

Hi @NoahHuguenin,

Great! Good to know that it is working now, with no further clarification on this thread, it will be transitioned to community support for further help on doubts in this thread. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support.

Thank you for the questions and as always pleasure having you here.

Best Wishes

BB