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Author: Veselin Kolev

Enhanced SSH Security: HSM and PIV Device Authentication for Discoverer and Discoverer+ Login Nodes

Enhanced SSH Security: HSM and PIV Device Authentication for Discoverer and Discoverer+ Login Nodes

We’re excited to announce comprehensive documentation for enabling HSM and PIV device SSH authentication for Discoverer and Discoverer+ login nodes. Our new guide enables users to leverage their existing state and EU-issued HSM and PIV devices (smart cards) for SSH authentication on Discoverer login nodes. Instead of generating new SSH keys, users can now use the cryptographic tokens they already possess from state and EU-recognized PKI certificate authorities for secure access to our computing infrastructure. Moreover, this way, the SSH…

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Presenting Discoverer abilities to forecast weather during the COP29 conference

Presenting Discoverer abilities to forecast weather during the COP29 conference

The abilities of the Discoverer Petascale Supercomputer to predict the climate changes through a high-resolution weather forecasts, were demonstrated at the annual UN Climate Change Conference in Baku (November 24, 2024). It is our commitment to accelerate the green transition. Here’s a video of the presentation:

Python 3.13.0 built with LLVM 19 and full LTO

Python 3.13.0 built with LLVM 19 and full LTO

Finally! We managed to compile the code of Python 3.13.0 using LLVM 19, with full link-time optimization (LTO): The installation passes all 44 standard optimization tests: Using random seed: 4347316840:00:00 load avg: 1.72 Run 44 tests sequentially in a single process0:00:00 load avg: 1.72 [ 1/44] test_array0:00:00 load avg: 1.72 [ 2/44] test_base640:00:00 load avg: 1.72 [ 3/44] test_binascii0:00:00 load avg: 1.72 [ 4/44] test_binop0:00:00 load avg: 1.72 [ 5/44] test_bisect0:00:00 load avg: 1.72 [ 6/44] test_bytes0:00:03 load avg: 1.67…

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Towards full adoption of LLVM: building a productive SQLite3 library installation required by TensorFlow

Towards full adoption of LLVM: building a productive SQLite3 library installation required by TensorFlow

Nowadays, the management of TensorFlow models using the SQLite3 library is becoming more and more demanded. It has become a standard practice for applicants for HPC resources to insist on accessing an optimized installation of the SQLite3 library, and avoid the one provided by the Linux distribution or delivered by Conda. Until one becomes involved in dealing with the constant changing of large sets of models, that might seem like an exaggeration or overstatement. It should be noted that the…

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Discoverer is advancing its commitment towards the full adoption of the LLVM compiler infrastructure

Discoverer is advancing its commitment towards the full adoption of the LLVM compiler infrastructure

The new version of the LLVM Compiler Infrastructure, 19, is available in the software repository. That version includes numerous improvements and fixes. We uphold our commitment to maintain openness and transparency in our way of doing system and software engineering, which entails consistently publishing our build recipes. In the case of LLVM 19, those recipes are publicly available here: https://gitlab.discoverer.bg/vkolev/recipes/-/tree/main/llvm/19 Adopting the LLVM 19 puts a new milestone in our computation model. We can start confidently moving the entire executables…

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[Computed on Discoverer] Calculation and visualization of protein conformations generation in implicit solvent

[Computed on Discoverer] Calculation and visualization of protein conformations generation in implicit solvent

We have numerous results we would like to share with you. One instance is the computation that demonstrates the conformation changes that make the protein to fold and unfold. The proper analysis of those changes help to measure the free energy of different processes related to the protein chain transformations. Our protein model representation depicts the side chains of each residue by utilizing a coarse grain force field, as illustrated in the video slides. By doing this, we significantly reduce…

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