Table of Contents

Introduction

Package management of the analysis software that LCLS maintains for users is being transitions to conda, from RPM's. This software includes psana (the software LCLS develops for working with experiment data), hdf5, openmpi, and many python packages such as numpy, scipy, ipython and scikit-beam. Advantages of this transition include

• easier for LCLS to integrate and update new software for users
• easier for offsite users to install psana

User Documentation

Users need to do the following

• use bash as your shell, not tcsh or csh (conda doesn't support csh)
• run the command: source /reg/g/psdm/etc/ana_env.sh as usual (explained in the psana python setup example)
• run the command: source conda_setup

 Sourcing the conda_setup script does a few things

• modifies certain linux environment variables that can affect conda
• identifies the most recent conda environment built for the LCLS Data analysis group
• activates that conda environment

At this point your linux prompt should change to something that starts with the name of the conda environment. For example,

(ana-1.0.7)

Python 3

The LCLS Data Analysis group will maintain conda environments with python 3. To activate the latest python 3 environment, pass the --py3 flag to conda_setup. That is run

source conda_setup --py3

Note - psana has not been ported to python 3.

Notes

• source conda_setup -h for full help on the script
• after sourcing conda_setup, you can execute the undo_conda command to restore your environment
• you can Psana Developers

Test Release

Adding a Package

Relinfo

Administration

 The conda based psana is in beta and ready for people to try. Do do so, please see

 Conda based Psana in LCLS central install

Not recommended, and out of date, but here are notes on maintaining your own miniconda install that psana:

Adding Conda Packages to Self Managed Installation - for use outside LCLS or managing your own conda stack at LCLS
 

Internal Notes

There are a lot of JIRA issues that come off of this main ticket:

...