Frequently Asked Questions

Does RapidStream support Alveo U55C?

Yes, RapidStream fully supports the Alveo U55C FPGA accelerator card. For detailed information on how to use RapidStream with the Alveo U55C, please refer to our Examples. You can find a specific example in the Sextans benchmark.

How can I incorporate floorplan information into RapidStream TAPA?

The floorplanning feature has been integrated into RapidStream. You should use rapidstream-tapaopt instead of the original tapac command argument to enable floorplanning. Optimization with RapidStream provide comprehensive guidance and examples for effectively utilizing floorplanning in your projects.

Where is `tapac` in RapidStream?

The tapac command has been replaced by tapa compile and rapidstream-tapaopt. The tapa compile command is used to compile TAPA source files into a Vitis object file, while rapidstream-tapaopt is used to optimize the TAPA object file. Most of the arguments and options are the same as the original tapac command. You may refer to the --help option for more information.

I encounter a “rapidstream command not found” error.

If you encounter this error, it’s likely that your system’s PATH environment variable hasn’t been updated to include the RapidStream installation directory. To resolve this:

Log out and log back in to your user account, or
Reboot your system.

Note

Some systems may require you to reboot in order to update the PATH. For instance, Visual Studio Code may not update the PATH until the last session is closed and timeouts, which may require a reboot. If a reboot is not feasible, you can manually update the PATH by following the instructions printed during the installation process.

Is there a command-line utility for quick help?

Yes, we provide a convenient command-line utility for quick reference. You can access command information about our commands by typing:

tapa --help
tapa compile --help
rapidstream-tapaopt --help