Posts – Andrea Zonca

Deploy a NFS server to share data between JupyterHub users on Jetstream

kubernetes

jetstream

jupyterhub

linux

This is an updated version of my 2023 tutorial on deploying a NFS server to share data between JupyterHub users on Jetstream.

How to request High Performance Computing (HPC) resources

hpc

I am often asked how a scientist located in the US can access supercomputing resources. I decided to write a blog post with an overview of the options, consider that I’m…

PySM 3.4.1 Released

openscience

pysm

python

PySM version 3.4.1 is now available. It can be downloaded from PyPI. The release notes detail new features and improvements.

healpy 1.18.1 released

healpy

python

Just released healpy 1.18.1, this version includes important bug fixes, please test and open issues at https://github.com/healpy/healpy/issues

New Simulations of the Panexp Model Suite for Planck and WMAP

pysm

cmb

Following up on my recent post about PySM models for Galactic emission, I have recently executed three new simulations of the Panexp model suite:

Jetstream2 Usage Monitoring

jetstream2

Monitoring resource usage on cloud platforms is essential for managing allocations effectively. For users of Jetstream2, the Unidata team has developed a useful script to…

Deployment of BinderHub by Project Pythia on Jetstream 2

kubernetes

jetstream2

Project Pythia has recently published a blog post about their deployment of BinderHub on Jetstream 2. This blog post discusses Project Pythia’s efforts to address “Jupyter…

Gateways 2024 - Tutorial on Creating a Serverless Research Data Repository based on Globus

data

Following our work published at PEARC 2024 presenting a Data Portal based on a static website built on top of Globus HTTPS services, we presented a tutorial at Gateways 2024.

New Paper on Arxiv about Models of Galactic Emission in the Microwaves for CMB Experiments

openscience

pysm

python

A new paper has been published on Arxiv discussing models of Galactic emission in the microwaves for Cosmic Microwave Background (CMB) experiments:

Use Jetstream’s DeepSeek R1 as a code assistant on JupyterAI

jetstream

llm

Thanks to Openrouter, there is now a way of using the Jetstream LLM inference system, in particular the powerful Deepseek R1 model, as a code and documentation assistant in…

Authenticate to GitHub in the Browser with the Device Flow

github

Authenticating to GitHub in the browser using the device flow is essential for applications that cannot directly handle OAuth redirects. This method allows users to…

Save Jupyterlite Notebooks to GitHub

github

JupyterLite runs entirely inside the browser, which means it doesn’t have access to the underlying operating system. Its storage is persistent across restarts of the machine…

Using GitHub Releases to keep track of Large Artifacts

github

GitHub Releases provide a way to attach large artifacts, such as binaries or large autogenerated files, without polluting the repository. A release points to a specific…

Italian and chess classes in San Diego

italian

My wife Maura D’Andrea is Principal and Teacher of Italian school of San Diego.

Deploy Kubernetes and JupyterHub on Jetstream with Magnum and Cluster API

kubernetes

jetstream

jupyterhub

UPDATED 2025-04-14: Added echo test
UPDATED 2025-04-12: Set a fixed IP address for the NGINX Ingress controller.

Proposal for of Simons Observatory Data Products Attribution

data

CC BY 4.0 only requiring attribution and not restricting commercial use or remixes.

Run Windows and WSL on Jetstream

jetstream

Need access to a Windows machine? You can leverage Jetstream 2, spin up a Virtual Machine with Windows Server 2022 and access the Windows graphical desktop through your…

Allow users to self-invite to a Google Calendar event

openscience

Google Calendar is the most popular calendar service, and it is widely used in academia, often Scientific Collaborations maintain one or multiple shared calendars to keep…

Deploy a LLM Chat-GPT like service on Jetstream

jetstream

llm

In this tutorial we will deploy a LLM Chat-GPT like service on a GPU node on Jetstream. For experimentation purposes we are using the smaller and cheapest GPU node available…

Kubernetes monitoring with Prometheus and Grafana

kubernetes

jetstream

jupyterhub

In a production Kubernetes deployment it is necessary to make it easier to monitor the status of the cluster effectively. Kubernetes provides Prometheus to gather data from…

Generate script to mount a Manila share

kubernetes

jetstream2

Jetstream 2 makes creating volumes that are shared across instances as easy as creating standard volumes. This is provided by the Manila service, which creates volumes based…

Configure ssh-agent on Linux

linux

I keep Googling this again and again.

Tutorial on Python for HPC at the SDSC Summer Institute 2024

python

hpc

Each August the San Diego Supercomputer Center organizes a week-long summer school that teaches a large number of topics related to Supercomputing and AI to early career…

How to use Anki flashcards to help kids learn spelling

documentation

In the Anki Desktop app on your computer, from the main screen, click on the “Create Deck” button to create a new deck, name it “Spelling::Week1” or similar. This is going…

Generate sample Cosmology data for Cheap and FAIR data portal with PySM

cosmology

healpy

pysm

This notebook generates some figures of Galactic and Extra-Galactic emissions using PySM. Mostly for displaying purposes.