Apptainer file for arm64 Linux is incorrect

[edp8489]

Describe the bug

The Apptainer definition file for arm64 Linux is (1) improperly defined and (2) inefficient. As defined, it fails during the call to starter/build.sh because it can't find the specified compilers in the PATH. Issues and solutions are described below.

1. Missing dependencies

• which is provided as a Bash alias in the Rocky image and doesn't behave as expected when called from the build scripts.

• python is not installed, either in the base Rocky image or with the remaining dependencies. By default it is used in the build scripts and not disabled.

2. ARM compilers

• ARM compiler suite and performance libraries are huge downloads (~2 GB). Given the frequent (sometimes 2-3x per week) updates of OpenRadioss, this is a drain on build time.
• Additionally, the container definition does not clean up the downloaded and expanded files after installation, leaving a large (~4 GB) footprint in the image that is not necessary.

Example build error

...

+ cd /opt/OpenRadioss/starter
+ ./build_script.sh -arch=linuxa64 -nt=80
 
 Build OpenRadioss Starter 
 --------------------------
 Build Arguments :
 arch =                 :  linuxa64
 precision =            :  dp
 debug =                :  0
 static_link =          :  0
 
 Executable name        :  starter_linuxa64
 
 #threads for Makefile :  80
 
 
./build_script.sh: line 251: which: command not found
./build_script.sh: line 252: which: command not found
./build_script.sh: line 253: which: command not found
./build_script.sh: line 254: which: command not found

...

-- Build files have been written to: /opt/OpenRadioss/engine/cbuild_engine_linuxa64
[  0%] Generating CMakeFiles/includes_engine_linuxa64/engine_message_description.inc
[  0%] Generating CMakeFiles/includes_engine_linuxa64/__foo.inc, CMakeFiles/includes_engine_linuxa64/build_info.inc
make[2]: python: No such file or directory
make[2]: *** [CMakeFiles/engine_linuxa64.dir/build.make:74: CMakeFiles/includes_engine_linuxa64/engine_message_description.inc] Error 127
make[2]: *** Waiting for unfinished jobs....
make[2]: python: No such file or directory
make[2]: *** [CMakeFiles/engine_linuxa64.dir/build.make:78: CMakeFiles/includes_engine_linuxa64/__foo.inc] Error 127
make[1]: *** [CMakeFiles/Makefile2:82: CMakeFiles/engine_linuxa64.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

Solution

1. Fix dependency and build issues

• which and python3 added to list of packages installed via final dnf command.

• A symlink pointing /usr/local/bin/python --> /usr/local/bin/python3 is added.

2. Clean up definition files

• A separate definition file arm_buildEnv.def is provided to download and install all prerequisites into a base image. This will only occur once.
  • The following options are added to the wget command:
    • --show-progress so user doesn't think progress has stalled when downloading the Arm compiler suite.
    • -c --read-timeout=15 to restart download after 15 seconds of inactivity and continue from the partially-downloaded file.
  • rm ... commands are added to clean up the Arm compiler and performance library intermediate files (*.tar downloads and unpacked *.sh installers) left behind after installation is complete.
• openradioss_arm.def definition file is now bootstrapped from the local build environment image (arm_buildEnv.sif) and ONLY downloads the OpenRadioss source. Libraries are static-linked so binaries can be copied to an archive and distributed externally.
• A build script build_arm.sh is provided that will first check if the build environment image exists and create it if necessary.
• Definition files are moved to Apptainer\arm\ directory.