Model Package for Bluesky Instrument Minimal Installation

Model of a Bluesky Data Acquisition Instrument in console, notebook, & queueserver.

Installation

Clone the repository

git clone git@github.com:BCDA-APS/bs_model_instrument.git
cd bs_model_instrument

Set up the development environment.

export ENV_NAME=bs_model_env
conda create -y -n $ENV_NAME python=3.11 pyepics
conda activate $ENV_NAME
pip install -e ."[all]"

IPython console

To start the bluesky instrument session in a ipython execute the below command in a terminal

ipython

Inside the ipython console execute

from instrument.startup import *

Jupyter notebook

Start JupyterLab, a Jupyter notebook server, or a notebook, VSCode.

Start the data acquisition:

from instrument.startup import *

Sim Plan Demo

To run some simulated plans that ensure the installation worked as expected please run the below inside an ipython session or a jupyter notebook after starting the data acquisition

RE(sim_print_plan())
RE(sim_count_plan())
RE(sim_rel_scan_plan())

See this example.

Configuration files

The files that can be configured to adhere to your preferences are:

• configs/iconfig.yml - configuration for data collection
• configs/logging.yml - configuration for session logging to console and/or files
• qs/qs-config.yml - contains all configuration of the QS host process. See the documentation for more details of the configuration.

queueserver

The queueserver has a host process that manages a RunEngine. Client sessions will interact with that host process.

Run a queueserver host process

Use the queueserver host management script to start the QS host process. The below option stops the server (if it is running) and then starts it. This is the usual way to (re)start the QS host process. Using the below command the process runs in the background.

./qs/qs_host.sh restart

Run a queueserver client GUI

To run the gui client for the queueserver you can use the below command inside the terminal

queue-monitor &

Shell script explained

A shell script is used to start the QS host process. Below are all the command options, and what they do.

(bstest) $ ./qs/qs_host.sh help
Usage: qs_host.sh {start|stop|restart|status|checkup|console|run} [NAME]

    COMMANDS
        console   attach to process console if process is running in screen
        checkup   check that process is running, restart if not
        restart   restart process
        run       run process in console (not screen)
        start     start process
        status    report if process is running
        stop      stop process

    OPTIONAL TERMS
        NAME      name of process (default: bluesky_queueserver-)

Alternatively, run the QS host's startup comand directly within the qs/ subdirectory.

cd ./qs
start-re-manager --config=./qs-config.yml

Testing

Use this command to run the test suite locally:

pytest -vvv --lf ./src

Warnings

For the Bluesky Queueserver.

The QS host process writes files into the qs directory. This directory can be relocated. However, it should not be moved into the instrument package since that might be installed into a read-only directory.