Intel® High Level Synthesis Compiler Pro Edition: Best Practices Guide

ID 683152
Date 9/23/2022
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

10. Advanced Troubleshooting

As you develop components with the Intel® HLS Compiler Pro Edition, you might encounter issues whose solution is unclear.
The issues typically fall into the following categories:
  • Your component behaves differently in simulation and emulation.
  • Your component has unexpectedly poor performance, resource utilization, or both.

(Windows only) Long Path Issues

Components kept in directories that result in a long path name might not compile properly or fail in simulation. Check your compilation log or simulation log (debug.log) to determine if the path length is a cause of the failures. Errors that indicate that a file could not be found can indicate that your paths might be too long.

The Intel® HLS Compiler uses the component name in many of the directories that it creates. Long component names can introduce long path issues even if your component is in a relatively shallow location in your directory structure.

To resolve a long path issue, try the following actions:
  • Move your component up the directory hierarchy.
  • Use a shorter name for your component.