GridDB on arm64 - database

At this moment(12.10.22) griddb is available on some processors based on arm64 in MC like Rock Pi 4B?
Im trying to using guide from here https://griddb.net/en/blog/griddb-on-arm-time-series-database-for-your-raspberry-pi/ step by step, but get some errors from ./configure and make.
Ty for answer

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concorde with Apple Silicon M1

I am trying to install concorde linked with QSOPT following these instructions. Regarding QSOPT, I dowloaded files from section Intel MacOS 10.6 (64-Bit). But, as I have Apple M1 chip, it does not work. I think that the problem is in the arm64 architecture in terms of QS, however with other more commercial software for Intel processor, I do not face any issue thanks to Rosetta.
The error I am facing when I run
./configure --host=darwin --with-qsopt=fullpath/QS
is
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [concorde] Error 1
Cross-posted on Stack Exchange - Operation Research
Thanks to the support of Bill Cook, it is now available a version of qsopt.a for the M1 Apple Chip on the QSOPT download page. This perfectly worked for me by run
./configure --host=darwin --with-qsopt=fullpath/QS

Installing Tensorflow Lite with CMake

I am trying to install Tensorflow Lite on Raspberry Pi Zero W. I followed the steps from the official website (https://www.tensorflow.org/lite/guide/build_cmake_arm). But I get the following error message:
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: /home/pi/toolchains/arm-rpi-linux-gnueabihf/x64-gcc-6.5.0/arm-rpi-linux-gnueabihf/bin/arm-rpi-linux-gnueabihf-gcc
-- Check for working C compiler: /home/pi/toolchains/arm-rpi-linux-gnueabihf/x64-gcc-6.5.0/arm-rpi-linux-gnueabihf/bin/arm-rpi-linux-gnueabihf-gcc -- broken
CMake Error at /usr/share/cmake-3.16/Modules/CMakeTestCCompiler.cmake:60 (message):
The C compiler
"/home/pi/toolchains/arm-rpi-linux-gnueabihf/x64-gcc-6.5.0/arm-rpi-linux-gnueabihf/bin/arm-rpi-linux-gnueabihf-gcc"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/pi/Project/cmake-3.16.0/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_ed1a3/fast && /usr/bin/make -f CMakeFiles/cmTC_ed1a3.dir/build.make CMakeFiles/cmTC_ed1a3.dir/build
make[1]: Entering directory '/home/pi/Project/cmake-3.16.0/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_ed1a3.dir/testCCompiler.c.o
/home/pi/toolchains/arm-rpi-linux-gnueabihf/x64-gcc-6.5.0/arm-rpi-linux-gnueabihf/bin/arm-rpi-linux-gnueabihf-gcc -march=armv6 -mfpu=vfp -funsafe-math-optimizations -o CMakeFiles/cmTC_ed1a3.dir/testCCompiler.c.o -c /home/pi/Project/cmake-3.16.0/CMakeFiles/CMakeTmp/testCCompiler.c
/home/pi/toolchains/arm-rpi-linux-gnueabihf/x64-gcc-6.5.0/arm-rpi-linux-gnueabihf/bin/arm-rpi-linux-gnueabihf-gcc: 1: /home/pi/toolchains/arm-rpi-linux-gnueabihf/x64-gcc-6.5.0/arm-rpi-linux-gnueabihf/bin/arm-rpi-linux-gnueabihf-gcc: Syntax error: ")" unexpected
make[1]: *** [CMakeFiles/cmTC_ed1a3.dir/build.make:66: CMakeFiles/cmTC_ed1a3.dir/testCCompiler.c.o] Error 2
make[1]: Leaving directory '/home/pi/Project/cmake-3.16.0/CMakeFiles/CMakeTmp'
make: *** [Makefile:121: cmTC_ed1a3/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:44 (project)
Configuring incomplete, errors occurred!
See also "/home/pi/Project/cmake-3.16.0/CMakeFiles/CMakeOutput.log".
See also "/home/pi/Project/cmake-3.16.0/CMakeFiles/CMakeError.log".
Does anyone know how to fix the problem?
I ran into the same problem like you!
The instructions given at https://www.tensorflow.org/lite/guide/build_cmake_arm?hl=en are not intended to be executed on the Raspberry Pi (at least the last ones).
Let me share, what I'll figured out.
Short answer:
you're trying to run a cross-compile of TensorFlow Lite for an ARM made for x86 platform on an ARM system (your Raspberry Pi). What you're trying to do actually needs to be done on an x86 platform.
(on the top of the tutorial page is a hint: "following instructions have been tested on Ubuntu 16.04.3 64-bit PC (AMD64)" which reveals that the commands have been run on x86)
Some details:
The message ‘Syntax error: "(" unexpected’ probably comes from a shell. Why is a shell trying to execute your binary? Because the kernel tried and gave up. Why did the kernel fail to run the program? Because the executable is not in a supported format -> meant to be run on x86 but was executed on ARM.
https://unix.stackexchange.com/questions/336436/syntax-error-unexpected-when-execute-a-compiled-c-program
With older TensorFlow versions it was possible to compile TF lite on the Raspberry Pi itself via the
./tensorflow-2.4.1/tensorflow/lite/tools/make/download_dependencies.sh /and build_aarch64_lib.sh scripts.
However, this scripts got removed in version 2.8 (or even with an earlier version before). See note in the Readme of the Git: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/lite/tools/make/README.md
Using Python for inference
Unfortunately I have no real solution how to compile / built TensorFlow Lite on the Raspberry itself. I personally ended up using Python (only needed inference) and followed this Tutorial:
https://qengineering.eu/install-tensorflow-2.7-on-raspberry-64-os.html

LibFTDI correct compiling / build [ Raspbian ]

INTRODUCTION
Hi everyone, I'm making a project in Raspbian (Raspberry Pi3) using the async streaming feature of the libFTDI library.I first tried to build one of their examples that scans all the ftdi devices inside the Build directory following this guide using cmake and I run perfectly ./find_all getting all the FTDI devices, and that's good.
So I wanted to build a custom libFTDI project in another directory by my own and to compile it by the only compiler tool I know: Gnu C Compiler.
PROBLEM
Well, the compiler shows me no errors when I tried to compile out of the Build directory using a code of mine which has an #include libftdi with gcc -lusb -lftdi AND ./find_all gave me back that there's no device found at all.At this point I toke exactly the same piece of code inside 'find_all.c AND ./find_all STILL gave me back that there's no device found at allObviously before I ran gcc I installed all the libFTDI dependencies via apt-get install, to be more specific:
build-essential
git-core
cmake
doxygen
libusb
libconfude-dev
swig
python-dev
libboost-all-dev
QUESTION
Can anyone help me finding out what's wrong in it?I'd really like to use this wonderful library. I state that I'm a newbie in cmake stuff therefore I guess that even if I'm making a custom project (and not an example) using libFTDI most probably I also have to cmake. I should be grateful if someone explained to me how to cmake/build/gcc this library everywhere I want.
Thanks for the attention payed.

How do I install crystal-lang on rapsberry pi?

When I try to add it to sources as per debian install instructions I get this error. I'm guessing this means that there are no arm packages for it.
Failed to fetch https://dist.crystal-lang.org/apt/dists/crystal/InRelease Unable to find expected entry 'main/binary-armhf/Packages' in Release file (Wrong sources.list entry or malformed file)
I'm guessing I probably need to install it from source. How would I go about doing that with an arm cpu? When I check it out and run make I get the error:
You need to have a crystal executable in your path! Makefile:113:
recipe for target '.build/crystal' failed make: *** [.build/crystal]
Error 1
Any suggestions would be greatly appreciated.
EDIT: There's now a semi-official repository for crystal on raspbian, check it out here: http://public.portalier.com/raspbian
Crystal doesn't build Debian packages for ARM, and you're correct in that you'll need to build from source.
However, the Crystal compiler is written in Crystal. This presents the obvious problem of how to get a compiler to build the compiler. The answer is cross-compilation: building an arm binary on a x86 desktop computer and copying it across.
Here's a quick step-by-step based on my memory of last time I cross-compiled:
Install Crystal on a x86 desktop PC, and check it works.
Install all required libraries on the desktop and Raspberry Pi. You'll need the same LLVM version on the Raspberry Pi and desktop. This is probably the hardest and longest step. You can install llvm 3.9 from debian testing for ARM, see this stackoverflow post for how to install only LLVM from debian testing.
Check out the sources from git on both computers, and run make deps.
Cross-compile the compiler by running this command in the root of the git repository:
./bin/crystal build src/compiler/crystal.cr --cross-compile --target arm-unknown-linux-gnueabihf --release -s -D without_openssl -D without_zlib
This command will create a crystal.o file in your current directory, and also output a linker command (cc crystal.o -o crystal ...).
Copy crystal.o to the raspberry pi, and run the linker command. Be sure to edit the absolute path to llvm_ext.o so that it points to the Crystal checkout on your Raspberry Pi, not the checkout on your desktop. Also make sure that all references to llvm-config in the command are for the correct LLVM version. For example, changing /usr/local/bin/llvm-config to llvm-config-3.9 on Raspbian.
Run the crystal executable in your current directory (./crystal -v) and make sure it works.
Ensure to set CRYSTAL_PATH environment variable is set to lib:/path/to/crystal/source/checkout/src so that the compiler can find the standard library when compiling applications.

Porting to ARM processor - dependancies

Am attempting to port some code to a Debian install on an ARM processor. Am having trouble finding 'libmygcc.a' - is this a compiled file or a library I need to install? I have it on a linux(x86) box but am not clear where it originated.
OpenSSL is next. Sigh.
libmygcc.a is a library for mysql, so you would have to compile mysql for your ARM target

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