BPI-M2 ZERO : TensorFlow 2.1.0 - C, C++ 라이브러리 설치

출처

• Bananapi M2+ – Armbian
• H2+ Quad Core MiNi A7 SoC BPI M2 Plus Banana Pi M2+ development board|soc board|pi board|pi mini - AliExpress
• 텐서플로우 C 예제 - HiSEON
• 대소니 :: Tensorflow version 확인
• libstdc++.so.6: version `GLIBCXX_3.4.22' not found · Issue #13 · lhelontra/tensorflow-on-arm

리눅스 정보 확인

CPU 정보 확인

$ cat /proc/cpuinfo
Processor       : ARMv7 Processor rev 5 (v7l)
processor       : 0
BogoMIPS        : 1142.85
 
processor       : 1
BogoMIPS        : 1142.85
 
processor       : 2
BogoMIPS        : 1142.85
 
processor       : 3
BogoMIPS        : 1142.85
 
Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt 
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 5
 
Hardware        : sun8i
Revision        : 0000
Serial          : 44007867890c5817090e

커널에 대한 정보

$ uname -a
Linux bananapim2zero 3.4.113-sun8i #2 SMP PREEMPT Wed May 8 15:09:43 CEST 2019 armv7l armv7l armv7l GNU/Linux

OS버전에 대한 정보

$ cat /etc/issue
Ubuntu 16.04.6 LTS \n \l

논리 코어 수 확인

$ grep -c processor /proc/cpuinfo
4

libstdc++6 라이브러리 업데이트

오류 메시지 `GLIBCXX_3.4.22' not found

libstdc++.so.6 라이브러리가 지원하는 버전 확인

$ strings /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBCXX_3.4.18
GLIBCXX_3.4.19
GLIBCXX_3.4.20
GLIBCXX_3.4.21
GLIBCXX_DEBUG_MESSAGE_LENGTH

libstdc++6 업데이트

$ sudo apt-get install software-properties-common
$ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get upgrade libstdc++6

libstdc++.so.6 라이브러리가 지원하는 버전 확인

$ strings /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBCXX_3.4.18
GLIBCXX_3.4.19
GLIBCXX_3.4.20
GLIBCXX_3.4.21
GLIBCXX_3.4.22
GLIBCXX_3.4.23
GLIBCXX_3.4.24
GLIBCXX_3.4.25
GLIBCXX_3.4.26
GLIBCXX_3.4.27
GLIBCXX_3.4.28
GLIBCXX_DEBUG_MESSAGE_LENGTH

TensorFlow C, C++ 라이브러리 설치

TensorFlow 라이브러리 다운로드

$ wget http://1.229.109.140:3562/tensorflow/tensorflow-2.1.0.armv6l/libtensorflow.tar.gz

TensorFlow 라이브러리 설치

$ sudo tar -C /usr/local -xzf libtensorflow.tar.gz

Linker 설정

$ sudo ldconfig

예제 hello.c

#include <stdio.h>
#include <tensorflow/c/c_api.h>

int main() {
  printf("TensorFlow C library version %s\n", TF_Version());
  return 0;
}

예제 컴파일

$ gcc hello.c -ltensorflow -o hello

예제 실행

$ ./hello
TensorFlow C library version 2.1.0