topic Re: oneAPI HPC Toolkit and Muse hover function trouble in Intel® Fortran Compiler

oneAPI HPC Toolkit and Muse hover function trouble

Tatehata — Mon, 02 Feb 2026 02:49:54 GMT

I had used ifort and VSD2022.
But, I installed the Intel® oneAPI HPC Toolkit (Ver. 2025.3.0.378) and VSD2022 (Ver. 17.14.24) for use openMP.

However, the mouse hover function doesn't work!, which previously displayed a numerical value when hovering over a variable name in debug mode, no longer works.
Also, when I tried to examine an array variable, the index was starting from zero; displayed in a c-like format, .

So, I installed the oneAPI Base Toolkit from the URL below, and the mouse hover function worked, and the array variable index displaye normally.
(https://www.intel.com/content/www/us/en/developer/tools/oneapi/toolkits.html)

This is very strange.
Why does not the mouse-hover functions work well, when only the Intel® oneAPI HPC Toolkit? Or, is it correct to install both the neAPI HPC Toolkit and the oneAPI Base Toolkit?

Thank you.

Re: oneAPI HPC Toolkit and Muse hover function trouble

Steve_Lionel — Mon, 02 Feb 2026 16:26:52 GMT

This means that the Intel Fortran debug support for VS is not installed. In VS, select Extensions > Manage Extensions. Search for Fortran. Ignore "Intel Fortran Compiler" and select Intel Fortran Expression Evaluator, click Install. Restart VS.

Re: oneAPI HPC Toolkit and Muse hover function trouble

thismarkjohnson — Tue, 03 Feb 2026 08:50:40 GMT

The HPC Toolkit alone doesn’t include all Visual Studio integration/debug components, which is why hover and proper array views break. It’s normal and recommended to install both the oneAPI Base Toolkit and the HPC Toolkit for full IDE and debugging features.

Re: oneAPI HPC Toolkit and Muse hover function trouble

Tatehata — Wed, 04 Feb 2026 01:46:16 GMT

Thank you for your reply.

I will carry out the inspections and corrections as you suggested and report the results at a later date. Please wait for a few days.

Thank you for your kindness.

Re: oneAPI HPC Toolkit and Muse hover function trouble

Tatehata — Wed, 04 Feb 2026 01:48:23 GMT

Thank you for your reply.

I will carry out the inspections and corrections as you suggested, and then, report the results at a later date.

Please wait for a few days. Thank you for your kindness.

I'm not good at English, so I apologize for using the same wording as my reply below.

<(_ _)>

Re: oneAPI HPC Toolkit and Muse hover function trouble

Tatehata — Wed, 04 Feb 2026 05:04:10 GMT

I followed your advice and added the extension to VS, and everything worked fine. I was not aware of VS extensions. Thank you for your kindness and helpful advice.

I also found the nostalgic ArrayVisualizer in the Extensions app. It's for the C compiler, but it would be great if it worked with Fortran. I'll try this extension later.

Vest Regards

Re: oneAPI HPC Toolkit and Muse hover function trouble

Tatehata — Wed, 04 Feb 2026 05:12:37 GMT

There may be cases where using both the HPC Toolkit and the oneAPI Base Toolkit is sufficient, but the two kits are almost identical, excepted only three Fortran-related tools.

Apparently it's an extension that displays variable values on mouse hover.
Installing it solved the problem.

Regards