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ironArray SLU
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Compress Better, Compute Larger, Share Faster
Stop downloading. Start computing.

Everything changes on November 18, 2025.

#Cat2Cloud is coming.
November 12, 2025 at 9:13 AM
Reposted by ironArray SLU
Our Blosc2 tutorial for @euroscipy.bsky.social 2025 is up! Learn how compression boosts tensor data handling, sharing & computing.

www.youtube.com/watch?v=BdpT... #DataScience #BigData #HPC #OpenSource
18.08.2025 Compress, Compute, and Conquer: Python-Blosc2 for Efficient Data Analysis
YouTube video by EuroSciPy
www.youtube.com
November 7, 2025 at 11:38 AM
Blosc2 is making its way towards becoming a general array library for data that is in memory, on disk or remote. This will be extremely useful to add flexibility to our cat2cloud SaaS service: ironarray.io/cat2cloud 🚀 🎉
📢🚨Blosc2 3.11.0 Released! 🚨 📢

Blosc2 is part of the NumPy array library ecosystem: numpy.org

In v3.11, Blosc2 has become even more flexible; all functions can accept basically any array object:

𝚋𝚕𝚘𝚜𝚌𝟸.𝚖𝚊𝚝𝚖𝚞𝚕(𝙰, 𝙱)

for 𝙰, 𝙱 PyTorch, Jax, Tensorflow, Zarr... arrays!

#Compute
#Tensor
#PyTorch
November 3, 2025 at 9:29 AM
Reposted by ironArray SLU
💊 IronPill 1💊
Blosc2 calculates Fourier approximations:
⚡5x faster than NumPy
👣 fraction of the memory footprint
🐍 one-line syntax 𝚜𝚞𝚖(𝚊 * 𝚌𝚘𝚜(𝚝) + 𝚋 * 𝚜𝚒𝚗(𝚝), 𝚊𝚡𝚒𝚜=𝟷)

Full notebook: github.com/Blosc/python...

(inspiration: towardsdatascience.com/numexpr-the-...)

#Blosc2
#Data
#SignalProcessing
October 20, 2025 at 12:06 PM
Reposted by ironArray SLU
📢Blosc2 3.10.2 Released! 📢

Lazy evaluation for ALL Blosc2 functions in version 3.10!

Blosc2 powers:
- Zarr/HDF5 computations (see image and blosc.org/posts/tensor...)
- Server compuation via Cat2Cloud (demo site here cat2.cloud/demo/)!

#Zarr
#HDF5
#Python
October 15, 2025 at 11:58 AM
Reposted by ironArray SLU
🚨Blosc2 3.9.1🚨

Blosc2 as a mature computation engine >>>

• Array API standard compliance - 70 new functions
• Fast linalg: tensordot 12x 𝐅𝐀𝐒𝐓𝐄𝐑 than NumPy for large arrays !
• Fast calc: Funcs like hypot 10x 𝐅𝐀𝐒𝐓𝐄𝐑 than NumPy!

Blog: ironarray.io/blog/array-api

#Python
#linalg
#computation
October 1, 2025 at 9:20 AM
Reposted by ironArray SLU
It's surprising how often the powerful SIMD capabilities of modern processors are overlooked. Harnessing them is key to unlocking next-level performance.
🚀 Boost your Python computations on NumPy arrays with @blosc.jit! Let Blosc2's compute engine accelerate your code without changing containers. ⚡

For ultimate speed, native Blosc2 containers are still king. 🏎️

Code: gist.github.com/FrancescAlte...

#Python #DataScience #NumPy #Performance #Blosc
September 22, 2025 at 12:20 PM
Struggling to get performant code from LLMs? 🤔

We can help! 💪 We've spent countless hours profiling and micro-benchmarking Blosc2 for you. A thing that LLMs cannot do (yet).

Ready to dive in? 🚀
🔹 EuroSciPy Talk: www.blosc.org/docs/2025-Eu...
🔹 Tutorial: github.com/Blosc/EuroSc...

#HPC #Blosc2
September 8, 2025 at 12:11 PM
Reposted by ironArray SLU
🚀 We're thrilled to announce *TreeStore*, a new class in Python-Blosc2! Endow your datasets with a hierarchical structure! ⚡️

📝 We've blogged about it:
www.blosc.org/posts/new-tr...

It's in beta, and available in Python-Blosc2 v3.7.2. Enjoy!

#Python #Blosc2 #TreeStore #DataScience #OpenSource
August 20, 2025 at 6:07 AM
📣 #Caterva2 2025.8.7 is out! 🚀

We did a major refactoring for a simpler, more robust system, with client APIs unaffected. ✅

The highlight is the new cat2agent 🤖, a CLI client to watch a directory and auto-sync it with a Caterva2 server.

Release notes: github.com/ironArray/Ca...

#OpenSource
August 7, 2025 at 10:01 AM
Tired of trial-and-error with #Blosc2 compression?

You can do better with #Btune! 🚀

Btune can be trained to automatically find the best parameters for your specific datasets and use case.

Learn more about optimizing your compression workflow: ironarray.io/btune

#DataCompression #Optimization
July 16, 2025 at 12:24 PM
Thanks to the advanced double partitioning techniques in #Blosc2, our #Caterva2 package can serve small slices of big datasets (3.8 GB) through internet in less than the blink of an eye.

Try it out by yourself! 👉 cat2.cloud/demo/roots/@...

Share Data Faster!

#BigData #RemoteAccess #Performance
July 9, 2025 at 3:20 PM
📣 Final call! 📣

Join us tomorrow, June 26th at 14:15 UTC, for our live webinar: A Gentle Introduction to Cat2Cloud

Discover how you can: 📤 Upload 📊 Visualize 💻 Compute 🤝 Share ...your data right in the cloud, in the most efficient way possible! ☁️✨
www.linkedin.com/feed/update/...
See you there!
🚀 Exciting Webinar Announcement! | Francesc Alted
🚀 Exciting Webinar Announcement! 🚀 We're thrilled to invite you to our upcoming webinar: **"A Gentle Introduction to cat2.cloud"** Hosted by ironArray 📅 **Date:** 2025-06-26 🕑 **Time:*...
www.linkedin.com
June 25, 2025 at 11:35 AM
In this chapter, our Luke Shaw explains how filters work in Caterva2, a free software that you can run on your own laptop (or server, if you are more serious about large datasets). It works for either #Blosc2 or #HDF5 datasets.

Have it a try!

#WebGUI #DataAnalysis #LargeData
Caterva2 also supports filtering 🗃️data with fields, via the web client 🌐 or programmatically from Python code 🐍- even the most advanced queries are possible!
This makes it ideal for structured datasets for Data Science 🧪. See 👀 what Caterva2 can do !-> ironarray.io/caterva2.
#DataScience #Python
June 18, 2025 at 9:29 AM
🚀 Excited to share more about Caterva2, your ultimate gateway to #Blosc2 / #HDF5 repositories! 🚀

#Caterva2 is designed to revolutionize how you interact with large datasets. Want to see it in action? 🤔 See our new video showcasing Caterva2's main functionalities! 🎬

ironarray.io/caterva2

Enjoy!
June 6, 2025 at 5:04 PM
✨ Ever wondered how to effortlessly apply lazy expressions to tomographic HDF5 datasets and visualize them instantly in Cat2Cloud? 🤯

🎬 Discover how Python 🐍 magic and our user-friendly web interface simplify the process.

👇 Watch the full video to see the magic unfold: ironarray.io/cat2cloud
May 29, 2025 at 5:09 PM
Reposted by ironArray SLU
We're making HDF5, the standard for scientific data 📊, faster ⚡ and more versatile 🛠️. By integrating Blosc2 with HDF5, our Caterva2 platform allows you to natively serve ☁️, share 🤝, visualize 👀, and compute 💻 your HDF5 datasets with greater efficiency and ease.

Slides:
www.blosc.org/docs/2025-Eu...
May 27, 2025 at 4:46 PM
🚀 Meet Cat2Cloud: High-Speed Throughput for AI/ML and HPC Workloads ⚡️💾

Managing large datasets shouldn't mean navigating complex architectures or unpredictable fees. Visit ironarray.io/cat2cloud to explore how Cat2Cloud can transform your data management experience.

#DataManagement #CloudComputing
May 15, 2025 at 11:26 AM
Python-Blosc2 3.3.3 is live! ✨ Bug fixes, smoother string lazy expressions, and Windows mmap improvements thanks to the latest C-Blosc2.

Upgrade now: pip install blosc2 --update

Learn more: github.com/Blosc/python...

#Python #Blosc2 #DataScience
Releases · Blosc/python-blosc2
A high-performance library for compressed ndarrays, with a flexible computational engine - Blosc/python-blosc2
github.com
May 14, 2025 at 4:12 PM
🗣️ Exciting news! We're introducing a new way to work with large datasets in the ☁️, inspired by spreadsheets 📊.
Imagine an expression that automatically updates its value whenever the underlying data changes – that's what we've brought to cloud-based data analysis.

Join our beta program and enjoy! 😀
Cat2Cloud Video 5!
We connect the Single Source of Truth (SSoT) concept to lazy expressions and Cat2Cloud's powerful append.
We also see how to seamlessly switch between notebooks and the web client.
Full video : ironarray.wistia.com/medias/4uept...
Find out more: ironarray.io/cat2cloud
May 9, 2025 at 11:03 AM
Your data does not need to be scattered throughout the world. See how you can use Blosc2/Caterva2 for centralize its storage, computing and sharing needs at easy!

Compress Better, Compute Bigger, Share Faster
📣 New video tutorial 🎥✨

🧮 The basics of an NDArray object in Blosc2
⚡ Lazy expressions for efficient computation
🌍 Caterva2: Access your data through network

🎬 Watch it: www.youtube.com/watch?v=aR-i...

Don't miss out—learn, explore, and level up your data skills! 🚀
#DataScience #Compression
Francesc Alted - Mastering Large NDArray Handling with Blosc2 and Caterva2 | PyData Global 2024
YouTube video by PyData
www.youtube.com
April 15, 2025 at 7:46 PM
🗣️ After 15 years delivering Blosc/Blosc2, we are glad to announce the beta program for Cat2Cloud:🤟

- 🗜️ Access to the best compression algorithms available
- 🔄 Share complex data securely and effortlessly
- ⚡ Perform advanced computations directly in the cloud

...and more!

ironarray.io/cat2cloud
April 2, 2025 at 4:06 PM
Happy to sponsor such an excellent work!
Is it possible to compute with arrays that are 100x larger than memory and still achieve good performance? 🤯

With the new compute engine in Python-Blosc2, you can! 😊 Check out our blog post for more details: ironarray.io/blog/compute...

Compress Better, Compute Bigger!
March 12, 2025 at 1:25 PM
Reposted by ironArray SLU
📢 We are happy to announce the release of Python-Blosc2 3.2.0!

This release introduces the new blosc2.matmul() function. We have written a nice blog: www.blosc.org/posts/optimi...

Lastly, we are excited to introduce WASM32 wheels for the first time. More info at: github.com/Blosc/python...

Enjoy!
Optimizing chunks for matrix multiplication in Blosc2
Exploring how to optimize chunk sizes in Blosc2 to improve performance in matrix multiplication.
www.blosc.org
March 12, 2025 at 1:17 PM
Happy to be sponsoring such an extremely useful project! Cheers! 🥂
Blosc compression helped fighting memory bottlenecks for 15 years now! 🎂
See how Dask + Zarr benefits from it. But vertical integration between compression and the compute engine in newest Python-Blosc2 makes a big difference in terms of speed ⚡ and scalability 🤟

#Compress better, #Compute bigger!
February 25, 2025 at 5:07 PM