Accessing CASA on the RTDC
Make sure you pick the correct computer & version of python to be compatible with the version of CASA you wish to use.
This table is complied from CASA documentation.
| OS | Python 3.6 | Python 3.7 | Python 3.8 | CASA Pipeline |
| RHEL 6 | <= 6.3 | 6.2 | 6.2 | 5.6 |
| RHEL 8 | >= 6.0 | >= 6.4, < 6.5.6 | >= 6.4 | 6.1+ |
Conda environments are available that provide different versions of python.
You can activate the relevant conda environment with $ conda activate py38
Find the OS of the RTDC computers here.
| OS | Python 3.6 | Python 3.7 | Python 3.8 | Python 3.11 |
| RHEL 6 | py36 | - | default | - |
| RHEL 8 | py36 | py37 | py38 | default |
There are a number of versions of CASA on the RTDC computers. The latest version is aliased to the
casa command in your terminal. RHEL 6 and RHEL 8 machines will have a different default CASA.
To access older versions, the full path must be given or you can create your own alias in ~/.cshrc.
| CASA version | Location |
| 6.6.3† | /py3opt/casa-6.6.3-22-py3.8.el8/bin/casa |
| 6.6.0 | /py3opt/casa-6.6.0-20-py3.8.el7/bin/casa |
| 6.5.4 pipeline | /py3opt/casa-6.5.4-9-pipeline-2023.1.0.124/bin/casa |
| 6.5.3 | /opt/casa-6.5.3-28-py3.8/bin/casa |
| 6.4.0 | /opt/casa-6.4.0-16/bin/casa |
| 6.2.1 pipeline | /opt/casa-6.2.1-7-pipeline-2021.2.0.128/bin/casa |
| 5.8.0* | /opt/casa-release-5.8.0-109.el6/bin/casa |
| 5.7.2 | /opt/casa-release-5.7.2-4.el6/bin/casa |
| 5.8.0 prerelease | /opt/casa-prerelease-5.8.0-5.el6/bin/casa |
| 5.7.0 | /opt/casa-release-5.7.0-134.el6/bin/casa |
| 5.6.1 pipeline | /opt/casa-pipeline-release-5.6.1-8.el6/bin/casa |
| 5.6.0 | /opt/casa-release-5.6.0-60.el6/bin/casa |
| 5.5.0 | /opt/casa-release-5.5.0-149.el6/bin/casa |
| 5.4.1 | /opt/casa-release-5.4.1-32.el6/bin/casa |
| 5.4.0 | /opt/casa-release-5.4.0-70.el6/bin/casa |
| 5.3.0 | /opt/casa-release-5.3.0-143.el6/bin/casa |
| 5.1.2 | /opt/casa-release-5.1.2-4.el6/bin/casa |
| 5.1.1 | /opt/casa-release-5.1.1-5.el6/bin/casa |
| 5.0.0 | /opt/casa-release-5.0.0-218.el6/bin/casa |
| 4.7.2 | /opt/casa-release-4.7.2-el6/bin/casa |
| 4.7.1 | /opt/casa-release-4.7.1-el6/bin/casa |
| 4.7.0 | /opt/casa-release-4.7.0-el6/bin/casa |
| 4.6.0 | /opt/casa-release-4.6.0-el6/bin/casa |
| 4.5.0 | /opt/casa-release-4.5.0-el6/bin/casa |
| 4.4.5 | /opt/casa-release-4.4.5-el6/bin/casa |
| 4.4.0 | /opt/casa-release-4.4.0-el6/bin/casa |
| 4.3.1 | /opt/casa-release-4.3.1-el5/bin/casa |
| 4.3.0 | /opt/casa-release-4.3.0-el5/bin/casa |
| 4.2.2 | /opt/casapy-42.2.30986-1-64b/bin/casa |
| 4.2.1 | /opt/casapy-42.1.29047-001-1-64b/bin/casa |
| 4.2.0 | /opt/casapy-42.0.28322-021-1-64b/bin/casa |
casa on RHEL 6 machines.
† Aliased to CASA on RHEL 8 machines.
On CF Computers
CASA is also available on the CF managed Linux computers:
| CASA version | Location |
| 6.5.1 | /sma/ALMA/casa-651 |
| 5.6.1 | /sma/ALMA/casa-561 |
| 5.4.1 | /sma/ALMA/casa-541 |
| 5.4.0 | /sma/ALMA/casa-540 |
| 5.3.0 | /sma/ALMA/casa-530 |
| 5.1.1 | /sma/ALMA/casa-511 |
| 5.1.0 | /sma/ALMA/casa-510 |
| 4.7.2 | /sma/ALMA/casa-472 |
| 4.7.1 | /sma/ALMA/casa-471 |
| 4.5.3 | /sma/ALMA/casa-453 |
| 4.5.0 | /sma/ALMA/casa-45 |
| 4.4.0 | /sma/ALMA/casa-44 |
| 4.3.0 | /sma/ALMA/casa-43 |
| 4.2.0 | /sma/ALMA/casa-42 |
| 4.1.0 | /sma/ALMA/casa-41 |
| 3.4.0 | /sma/ALMA/casa-34 |
On Hilo Computers
You can find CASA on the Hilo reduction computers at /usr/local/casa-release-4.7.0-1-el6/bin/casa

