Exception: Couldn't find Xilinx ap_ headers

[brightneedle]

I am running an Ubuntu virtual machine (Ubuntu Desktop 18.04 LTS and have installed Vivado 2019.2. I have created a python environment and have installed conifer using pip install conifer.

However, when running the example scripts I run into the following error:

Exception: Couldn't find Xilinx ap_ headers. Source the Vivado/Vitis HLS toolchain, or set XILINX_AP_INCLUDE environment variable.

What is the fix here?

[thesps]

With Vivado installed you should setup the tools like (change for your Vivado install path):
source /path/to/Xilinx/Vivado/2019.2/settings.sh

You can check that one of the required environment variables is set like:
echo $XILINX_VIVADO

Then during the logging of the example you should see a message like:
DEBUG:conifer.utils.misc:Including ap_ headers from XILINX_VIVADO: -I/path/to/Xilinx/Vivado/2019.2/include

[Andre-coder]

Greetings I used the same command line 'source /path/to/Xilinx/Vivado/2019.2/settings.sh' but still getting the same error. Any help i can get from this

522 if ap_include is None:
523 os.chdir(curr_dir)
--> 524 raise Exception("Couldn't find Xilinx ap_ headers. Source the Vivado/Vitis HLS toolchain, or set XILINX_AP_INCLUDE environment variable.")
525 cmd = f"g++ -O3 -shared -std=c++14 -fPIC $({_py_executable()} -m pybind11 --includes) {ap_include} {gcc_opts()} bridge.cpp firmware/BDT.cpp firmware/{cfg.project_name}.cpp -o conifer_bridge{self._stamp}.so"
526 logger.debug(f'Compiling with command {cmd}')

Exception: Couldn't find Xilinx ap_ headers. Source the Vivado/Vitis HLS toolchain, or set XILINX_AP_INCLUDE environment variable.

[thesps]

@Andre-coder

Could you run the following and report back what is says?

import sys
import logging
logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
import conifer
conifer.utils._ap_include()

Can you check that the path that your sourced the settings from is correct?

[Andre-coder]

Its running fine now, the conifer can find the Xilinx on my env. Thank You!

[Andre-coder]

But theres an error that also encounter during the execution on i will share it

529 if ret_val != 0:
530 raise Exception(f'Failed to compile project {cfg.project_name}')
531 except:

Exception: Failed to compile project my_prj

During handling of the above exception, another exception occurred:

[thesps]

Can you please share more of the error message?

[Andre-coder]

sh: line 1: g++: command not found

Exception Traceback (most recent call last)
File ~/.local/lib/python3.12/site-packages/conifer/backends/xilinxhls/writer.py:530, in XilinxHLSModel.compile(self)
529 if ret_val != 0:
--> 530 raise Exception(f'Failed to compile project {cfg.project_name}')
531 except:

Exception: Failed to compile project proj

During handling of the above exception, another exception occurred:

Exception Traceback (most recent call last)
Cell In[42], line 4
1 #cnf = conifer.model(clf, conifer.converters.sklearn, conifer.backends.vivadohls, cfg)
2 #cnf.compile()
3 cnf = conifer.converters.convert_from_sklearn(clf,cfg)
----> 4 cnf.compile()

File ~/.local/lib/python3.12/site-packages/conifer/backends/xilinxhls/writer.py:533, in XilinxHLSModel.compile(self)
531 except:
532 os.chdir(curr_dir)
--> 533 raise Exception(f'Failed to compile project {cfg.project_name}')
535 try:
536 logger.debug(f'Importing conifer_bridge_{self.stamp} from conifer_bridge{self._stamp}.so')

Exception: Failed to compile project proj

[Andre-coder]

Greetings! Is there any insights that can help fix this error. @thesps . I was able to get the build() function runing without any issue, but the exception showing up in the 533, does it affect on the build function also?

[Andre-coder]

@thesps I found the solution for this particulary error, the compilation was failing due the gcc-gcc++ lib dev, for fedora user i add to move files from (sudo cp /usr/include/c++/13/i686-redhat-linux/bits/os_defines.h /usr/include/c++/13/bits) and python3-devel dependecies. Thank You!