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Last modified: 10 October 2019

URL: https://cxc.cfa.harvard.edu/ciao/download/systemreq.html

System Requirements


CIAO is supported on a number of operating systems, which are listed on the Platform Support page. Certain system requirements are necessary to successfully install and run CIAO.

Installation requirements

The suggested route for CIAO installation is by the ciao-install script, available from the download page. This script requires bash to run it, and either curl or wget to download the binary packages. The gzip tool is required to uncompress the binary packages, and tar to unpack them.

Memory and Disk Space

Chandra data files are large, which implies that certain processing and analysis operations will work more efficiently when they have access to large amounts of RAM. We recommend a minimum of 4Gb main memory. A full CIAO installation, including the background calibration files will require ~15Gb of disk space. The disk space for individual observations varies from a few megabyte to several gigabytes depending on the target as well as the exposure time and instrument configuration.


Linux

Pre-built binaries for CIAO 4.12 are built for Linnux on CentOS 6.9 machines. These are expected to be compatible with most recent Linux distributions, but may not work with old versions.

X11R6

X11, the X window system.


Apple macOS

Pre-built binaries for CIAO 4.12 for macOS were built on macOS 10.12 (Sierra), and are compatible with newer versions through macOS 10.14 (Mojave).

X11

X11 was included as an optional package in earlier versions of OSX; however, it currently must be installed separately from the XQuartz website. Users must be using XQuartz version 2.7.11 or newer.

Xcode

CIAO requires users have the Apple's Xcode tools installed on OSX/macOS. These tools are needed during the installation process to configure the programs to run on users machine.


X11 System Libraries

CIAO requires several X11 related system libraries to be installed. These are usually already installed on most end-user Linux machines; however, they are frequently omitted when running on "headless" clusters and Apple users need to install XQuartz separately.

Users are responsible for installing them via the package manager (e.g. yum, fink).

The names may differ slightly but here are the known packages:

Doing an ldd on our executables and libraries will produce a list something like the following list of system libaries that will either be located in /lib or /usr/lib.

libncurses.so.5	libXt.so.6 	 libgnutls.so.13
libm.so.6	libSM.so.6 	 libkrb5support.so.0 
libdl.so.2	libICE.so.6 	 libkeyutils.so.1
libstdc++.so.6	libXrandr.so.2	 libresolv.so.2
libgcc_s.so.1	libXrender.so.1	 libgcrypt.so.11
libc.so.6	libXinerama.so.1 libgpg-error.so.0
ld-linux.so.2	libXau.so.6	 libnsl.so.1
libX11.so.6	libXdmcp.so.6	 libsepol.so.1
            	libdl.so.2	 libz.so.1
          	libselinux.so.1	 librt.so.1
libXmu.so.6	libcrypt.so.1	 libpthread.so.0