MATLAB Coder: How do I setup the environment variables on ARM targets to point to the ARM Compute Library?

조회 수: 17 (최근 30일)
I see a few deep learning networks supported for code generation using MATLAB Coder:
And I've seen the question here about building the ARM Compute Library:
The next question I have is, how do I set the environment variables on ARM targets to point to the ARM Compute Library?

채택된 답변

Bill Chou
Bill Chou 2019년 4월 10일
To avoid build failures on ARM hardware targets, such as the Raspberry Pi and Hikey960, you must set the necessary environment variables non-interactively.
For example, with the ComputeLibrary folder installed under ~, the user home directory, and the ARM Compute libraries stored at ~/ComputeLibrary/lib, you can add this code block to the file ~/.bashrc:
#Set below block, if you use your hardware non-interactively (through ssh from remote host or tty/new terminal onto local machine)
case $- in
*i*) ;;
*)
export ARM_COMPUTELIB=~/ComputeLibrary
export PATH=${PATH}:~/ComputeLibrary
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:~/ComputeLibrary/lib
return;;
esac
  댓글 수: 3
Praneet Kala
Praneet Kala 2019년 11월 1일
Having the same issue. I have the entire arm_compute folder on the same path as the example which i am trying to deploy and i still get this error. It was happening with the MemoryRegion.h file and then i added the entire folder (arm_compute/runtime) to the path in MATLAB and i get this error.
Any help would be appreciated

댓글을 달려면 로그인하십시오.

추가 답변 (2개)

Hariprasad Ravishankar
Hariprasad Ravishankar 2019년 11월 19일
Hi all,
The build error "fatal error: arm_compute/runtime/NEON/NEFunctions.h: No such file or directory" suggests that the ARM_COMPUTELIB environment variable may be incorrectly set.
This may perhaps be if you have setup the envrionment variables at the end of the ~/.bashrc script instead of the beginning.
In order to execute commands non-interactively, such as the codegen command from MATLAB on a host to compile on the Raspberry Pi, the environment variables need to be setup inside the
case $- in
*i*) ;;
*)
...
return;;
esac
block in the ~/.bashrc script. This section can be found in the first few lines of the ~/.bashrc script for non-interactive,non-login shells.
Here is how it is setup for me for reference
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
# If not running interactively
case $- in
*i*) ;;
*) export ARM_COMPUTELIB=~/ComputeLibrary
export PATH=${PATH}:~/ComputeLibrary
export LD_LIBRARY_PATH=~/opencv-3.2.0/build/lib:~/ComputeLibrary/lib:$LD_LIBRARY_PATH
return;;
esac
# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth
# append to the history file, don't overwrite it
shopt -s histappend
Alternatively, you can setup environment variables in the first few lines of the ~/.bashrc before the return;; statement
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
export ARM_COMPUTELIB=~/ComputeLibrary
export PATH=${PATH}:~/ComputeLibrary
export LD_LIBRARY_PATH=~/opencv-3.2.0/build/lib:~/ComputeLibrary/lib:$LD_LIBRARY_PATH
# If not running interactively
case $- in
*i*) ;;
*)
return;;
esac
  댓글 수: 5
Hariprasad Ravishankar
Hariprasad Ravishankar 2024년 9월 25일
I was able to reproduce the error. It seems that there are two issues with the ecgsegmentation_main.cpp shipping with the example. The #include "rt_nonfinite.h" is not requried, and the datatype of the variable 'out' should be cell_wrap_4.
I have fixed both issues and verified that the example works in R2023b. Please use the cpp file attached as part of the ZIP file to fix the issues.
I will ensure we fix this issue.
Hari
Xisheng Yu
Xisheng Yu 2024년 9월 26일
Very happy to hear from you and that the problem was solved with the new file. Thank you very much and best wishes to you.

댓글을 달려면 로그인하십시오.


Torbjörn Olsson
Torbjörn Olsson 2019년 9월 24일
Hi Davide,
while you are awaiting an answer from a cunning person, I thought I draw your attention to a minor issue that perhaps could be at least part of the compiling error. The paths seems to differ by one character between the one in the error message and the one you mention in the latter part of your query, i.e. "arm_compute/runtime/" vs. "arm_compute_runtime/".
  댓글 수: 1
Davide Buellis
Davide Buellis 2019년 9월 25일
Hi Torbjorn!
Thanks for your help! Sorry I made a typo, it is not "arm_compute_runtime/". I corrected the question.

댓글을 달려면 로그인하십시오.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by