Tootfinder

Almost done with RAM testing, the third box is underway. Still need to Clonezilla it, but figure I can just enjoy a few beers and watch some YT videos.
#homelab

ICE agents ram car to take man into custody in Boyle Heights (Kabc/ABC7)
https://abc7.com/post/federal-agents-involved-boyle-heights-crash-accused-hit-run-lapd-investigating/16724558/
http://www.memeorandum.com/250611/p145#a250611p145

Some information about the upcoming #Fairphone 6 has been leaked. The TL;DR: super modular, 8 GB RAM, 256 GB storage, price 549.99 euros, rumoured for a June 25th launch.
"Fairphone 6: 'Faires' Smartphone with modular design - Price & Picture".

With the 5th #AAS246 presser come the paper https://arxiv.org/abs/2506.07262 (ALMA-JELLY I: High Resolution CO(2-1) Observations of Ongoing Ram Pressure Stripping in NGC 4858 Reveal Asymmetrical Gas Tail Formation and Fallback), the press release https://news.arizona.edu/news/belly-beast-massive-clumps-reveal-star-factories-bygone-era-cosmos (In the belly of the beast: massive clumps reveal star factories from a bygone era of the cosmos) and the papers https://iopscience.iop.org/article/10.3847/1538-4357/ada8a6 (UNCOVERing the Faint End of the z ∼ 7 [O iii] Luminosity Function with JWST's F410M Medium Bandpass Filter) with the press release https://science.nasa.gov/missions/webb/nasas-webb-uncovers-galaxy-population-driving-cosmic-renovation/ and https://arxiv.org/abs/2505.06198 (The "Dark-Matter Dominated" Galaxy Segue 1 Modeled with a Black Hole and no Dark Halo) with the press release https://www.utsa.edu/today/2025/06/story/researchers-offer-alternative-to-dark-matter-model.html

Jellyfish galaxies with the IllustrisTNG simulations -- Supermassive black hole activity in dense environments with ram-pressure stripped satellites
Shalini Kurinchi-Vendhan, Eric Rohr, Annalisa Pillepich, Elad Zinger, Mohammadreza Ayromlou, Gandhali D. Joshi
https://arxiv.org/abs/2506.05474…

Jellyfish galaxies with the IllustrisTNG simulations -- Supermassive black hole activity in dense environments with ram-pressure stripped satellites
Jellyfish galaxies are extreme examples of how galaxies can transform due to dense environmental effects. These satellite galaxies suffer from ram-pressure stripping, leading to the formation of their distinctive gaseous tails. Some recent observational studies find that jellyfish galaxies are more likely to host active galactic nuclei (AGN) compared to central galaxies of the same mass, suggesting a link between ram pressure and supermassive black hole (SMBH) accretion. We use the IllustrisTNG…

Xbox Ally X hands-on: AMD Ryzen AI Z2 Extreme APU, 24GB of RAM, and a 1TB SSD, 1080p games run at 60 FPS with no issues, a slimmed down Windows OS, and more (IGN)
https://www.ign.com/articles/hands-on-with-the-xbox-ally-x-…

Hands-On With the Xbox Ally X, the New Gaming Handheld from Asus and Microsoft - IGN
The Xbox handhelds are coming Holiday 2025 and they're impressive, but many questions still remain.

Energy efficiency of DMAs vs. conventional MIMO: a sensitivity analysis
Pablo Ram\'irez-Espinosa, David Morales-Jim\'enez, Beatriz Soret
https://arxiv.org/abs/2506.09181

Energy efficiency of DMAs vs. conventional MIMO: a sensitivity analysis
Motivated by the stringent and challenging need for `greener communications' in increasingly power-hungry 5G networks, this paper presents a detailed energy efficiency analysis for three different multi-antenna architectures, namely fully-digital arrays, hybrid arrays, and dynamic metasurface antennas (DMAs). By leveraging a circuital model, which captures mutual coupling, insertion losses, propagation through the waveguides in DMAs and other electromagnetic phenomena, we design a transmit Wien…

Understanding the Performance and Power of LLM Inferencing on Edge Accelerators
Mayank Arya, Yogesh Simmhan
https://arxiv.org/abs/2506.09554 https://

Understanding the Performance and Power of LLM Inferencing on Edge Accelerators
Large Language Models (LLMs) have demonstrated exceptional benefits to a wide range of domains, for tasks as diverse as code generation and robot navigation. While LLMs are usually served from cloud data centers, mission-critical and privacy-sensitive applications may require local hosting of open LLM models. Given the large GPU memory footprint needed for LLMs, edge accelerators such as Nvidia Jetson Orin AGX with 64GB of shared GPU-CPU RAM are a compelling choice. However, the feasibility and…

I now officially have all the RAM...now just waiting for the boxes to toss the RAM into.
#homelab

Improved error bounds for Koopman operator and reconstructed trajectories approximations with kernel-based methods
Diego Olgu\'in, Axel Osses, H\'ector Ram\'irez
https://arxiv.org/abs/2506.09266

Improved error bounds for Koopman operator and reconstructed trajectories approximations with kernel-based methods
In this article, we propose a new error bound for Koopman operator approximation using Kernel Extended Dynamic Mode Decomposition. The new estimate is $O(N^{-1/2})$, with a constant related to the probability of success of the bound, given by Hoeffding's inequality, similar to other methodologies, such as Philipp et al. Furthermore, we propose a \textit{lifting back} operator to obtain trajectories generated by embedding the initial state and iterating a linear system in a higher dimension. Thi…

ALMA-JELLY I: High Resolution CO(2-1) Observations of Ongoing Ram Pressure Stripping in NGC 4858 Reveal Asymmetrical Gas Tail Formation and Fallback
Harrison J. Souchereau, Jeffrey D. P. Kenney, Pavel Jachym, Ming Sun, William J. Cramer, Masafumi Yagi, Alessandro Boselli, Elias Brinks, Francoise Combes, Luca Cortese, Boris Deshev, Matteo Fossati, Romana Grossova, Rongxin Luo, Jan Palous, Tom C. Scott

ALMA-JELLY I: High Resolution CO(2-1) Observations of Ongoing Ram Pressure Stripping in NGC 4858 Reveal Asymmetrical Gas Tail Formation and Fallback
We present new CO(2-1) observations (resolution $\sim1" = 460$pc) of the Coma cluster jellyfish galaxy NGC 4858 obtained from the ALMA-JELLY large program. Analyzing this data alongside complimentary Subaru H$α$ and HST (F600LP / F350LP) observations, we find numerous structural and kinematic features indicative of the effects from strong, inclined ram pressure, including an asymmetric inner gas tail. We estimate a highly-inclined disk-wind angle of $ϕ_{DW} = 75^{+10}_{-27}$. By subtracting a…

Anomalous localization of light in one-dimensional L\'evy photonic lattices
Alejandro Ram\'irez-Ya\~nez, Thomas Gorin, Rodrigo A. Vicencio, V\'ictor A. Gopar
https://arxiv.org/abs/2506.09210

Anomalous localization of light in one-dimensional Lévy photonic lattices
Localization of coherent propagating waves has been extensively studied over the years, primarily in homogeneous random media. However, significantly less attention has been given to wave localization in inhomogeneous systems, where the standard picture of Anderson localization does not apply, as we demonstrate here. We fabricate photonic lattices with inhomogeneous disorder, modeled by heavy-tailed $α$-stable distributions, and measure the output light intensity profiles. We demonstrate that …

The first MS-A2 node is up and it only took the entire day. After fixing a ton of networking issues across the homelab I've got all the VMs running on the new node. The old nodes have been decomissioned which kinda marks a milestone. Still need to get the other two new nodes into the cluster, but should be fairly straightforward and can wait until tomorrow.
#homelab

Thermodynamics of dyonic black holes in non-linear electrodynamics
Lewis Croney, Ruth Gregory, Carlos J. Ram\'irez-Valdez
https://arxiv.org/abs/2506.06437

Thermodynamics of dyonic black holes in non-linear electrodynamics
We investigate dyonic black holes in a weak field expansion of non-linear electrodynamics. The breadth of parameter space permits a rich thermodynamic structure, additional turning points and intricate phase phenomena. Energy conditions are employed to ensure the physical viability of solutions. Analytic special cases illustrate novel properties of black holes in non-linear electrodynamics, including modified extremal limit behaviour. Numerical solutions offer the most elaborate thermodynamic l…

For the past month, I have been flitting about from one project to another as my ADHD sees fit. Today, that MO has to end if I'm ever going to complete this #homelab setup.
So, in order, I have to:
* Back up all my LXC's
* Install RAM in a Mac mini
* Reinstall ProxMox with #ZFS

I recently bought a Mac mini M4 Pro with 64 GB RAM. I am not disappointed. #macmini

Stellt euch mal vor, man ergänzt 8bit Chiptunes mit Stromgitarren und Double-Basedrum. Konsequenterweise nennt man sich als Musiker dann MASTER BOOT RECORD und die Songs heißen BIOS, RAM oder HDD. Enjoy: https://masterbootrecord.bandcamp.com/album/hardwarez

My JS Krups is resisting netbooting. I see it doing a DHCP discover, and I see Kea responding with an offer, but then it just sends another Discover. Hmph. I can get to the serial console and doing boot net from there doesn't help; none of the keyboard shortcuts for network diag etc seem to work (except the one that displays the help for it...). So I took the flash SIM out and now it boots to Net rather than flash by default; alas with the same DHCP behaviour. Time to try isc-dhcp.…

Faut-il encore configurer du swap en 2025, même sur des serveurs avec beaucoup de RAM ?
J'ai découvert le paramètre kernel "swappiness"
#TIL

Modeling the Impact of Misinformation Dynamics on Antimicrobial Resistance
Laurance Fakih, Andrei Halanay
https://arxiv.org/abs/2505.21540 https://

Modeling the Impact of Misinformation Dynamics on Antimicrobial Resistance
Antimicrobial Resistance (RAM) poses a significant threat to global public health, making important medicines less useful. While the medical and biological reasons behind RAM are well studied, we still don't know enough about how false health information affects people's actions, which can speed up RAM. This study presents a new mathematical model to investigate the complex interplay between the spread of misinformation and the dynamics of RAM. We adapt a multi-strain fake news model, including…

Initial default PCB layout for the switch engine board.
Surprisingly simple, the UltraRAM means I should be able to keep the entire switch's buffering on chip and not need any external RAM. So most of the HP I/Os are completely unused.

So, might've gotten a few things in the mail today...MUHAHAHA. The Minisforum MS-A2s have arrived and I've started getting the RAM upgraded and tested.
#homelab #minirack

Toward Khintchine's theorem with a moving target: extra divergence or finitely centered target
Gilbert Michaud, Felipe A. Ram\'irez
https://arxiv.org/abs/2506.04187

Toward Khintchine's theorem with a moving target: extra divergence or finitely centered target
Sz{ü}sz's inhomogeneous version (1958) of Khintchine's theorem (1924) gives conditions on $ψ:\mathbb{N}\to\mathbb{R}_{\geq 0}$ under which for almost every real number $α$ there exist infinitely many rationals $p/q$ such that \begin{equation*} \lvertα- \frac{p+γ}{q}\rvert < \frac{ψ(q)}{q}, \end{equation*} where $γ\in\mathbb{R}$ is some fixed inhomogeneous parameter. It is often interpreted as a statement about visits of $qα\,(\bmod 1)$ to a shrinking target centered around $γ\,(\bmod…

Adobe launches a Photoshop app for Android in beta for devices running Android 11 or later with 6GB of RAM, including core desktop features like layering (Aisha Malik/TechCrunch)
https://techcrunch.com/2025/06/03/adobe-launches-beta-…

Adobe launches beta version of its Photoshop app on Android | TechCrunch
The app offers a similar set of editing tools as the desktop version, including layering and masking, but is optimized for mobile screens.

In one of the more painful purchases I've done in a bit: just ordered 3 kits of Crucial DDR5 RAM for the MS-A2 servers. This will take them from 32GB -> 96GB which should work out a bit better for Proxmox. Unfortunately, my wallet is crying. If everything goes well, the RAM should get here just before the servers do.
#homelab

Max Entropy Moment Kalman Filter for Polynomial Systems with Arbitrary Noise
Sangli Teng, Harry Zhang, David Jin, Ashkan Jasour, Ram Vasudevan, Maani Ghaffari, Luca Carlone
https://arxiv.org/abs/2506.00838

Max Entropy Moment Kalman Filter for Polynomial Systems with Arbitrary Noise
Designing optimal Bayes filters for nonlinear non-Gaussian systems is a challenging task. The main difficulties are: 1) representing complex beliefs, 2) handling non-Gaussian noise, and 3) marginalizing past states. To address these challenges, we focus on polynomial systems and propose the Max Entropy Moment Kalman Filter (MEM-KF). To address 1), we represent arbitrary beliefs by a Moment-Constrained Max-Entropy Distribution (MED). The MED can asymptotically approximate almost any distribution…

Supporting architecture evaluation for ATAM scenarios with LLMs
Rafael Capilla, J. Andr\'es D\'iaz-Pace, Yamid Ram\'irez, Jennifer P\'erez, Vanessa Rodr\'iguez-Horcajo
https://arxiv.org/abs/2506.00150

Supporting architecture evaluation for ATAM scenarios with LLMs
Architecture evaluation methods have long been used to evaluate software designs. Several evaluation methods have been proposed and used to analyze tradeoffs between different quality attributes. Having competing qualities leads to conflicts for selecting which quality-attribute scenarios are the most suitable ones that an architecture should tackle and for prioritizing the scenarios required by the stakeholders. In this context, architecture evaluation is carried out manually, often involving …

Optimizing Software Defined Battery Systems for Transformer Protection
Sonia Martin, Obidike Nnorom Jr., Philip Levis, Ram Rajagopal
https://arxiv.org/abs/2506.03439

Optimizing Software Defined Battery Systems for Transformer Protection
Residential electric vehicle charging causes large spikes in electricity demand that risk violating neighborhood transformer power limits. Battery energy storage systems reduce these transformer limit violations, but operating them individually is not cost-optimal. Instead of individual optimization, aggregating, or sharing, these batteries leads to cost-optimal performance, but homeowners must relinquish battery control. This paper leverages virtualization to propose battery sharing optimizati…

Long-Term Optical Follow Up of S231206cc: Multi-Model Constraints on BBH Merger Emission in AGN Disks
P. Darc, C. R. Bom, C. D. Kilpatrick, A. Souza Santos, B. Fraga, J. C. Rodr\'iguez-Ram\'irez, D. A. Coulter, C. Mendes de Oliveira, A. Kanaan, T. Ribeiro, W. Schoenell, E. A. D. Lacerda
https://arxiv.org/abs/2506.02224…

Long-Term Optical Follow Up of S231206cc: Multi-Model Constraints on BBH Merger Emission in AGN Disks
The majority of gravitational wave events detected by the LIGO, Virgo, and KAGRA Collaboration originate from binary black hole (BBH) mergers, for which no confirmed electromagnetic counterparts have been identified to date. However, if such mergers occur within the disk of an active galactic nucleus (AGN), they may generate observable optical flares induced by relativistic jet activity and shock-heated gas. We present results from a long-term optical follow-up of the gravitational wave event S…

I'm setting up a new device for someone who wants to try out Linux. What distro would you recommend?
Some information about the user:
- uses MacOS currently
- wants stuff to work (minimal tinkering after setup)
- quick to boot
The device will probs be quite an old device (~3-5 years old, 8gb RAM though) and is mostly to run OBS. I'll check system requirements when I know the device ofc, just wondering what you people think is a good distro for them.

Characterization of latency and jitter in TSN emulation
\'Alex Gracia, Jos\'e Luis Briz, H\'ector Blanco-Alcaine, Juan Segarra, Alitzel G. Torres-Mac\'ias, Antonio Ram\'irez-Trevi\~no
https://arxiv.org/abs/2506.02133

Characterization of latency and jitter in TSN emulation
This research focuses on timestamping methods for profiling network traffic in software-based environments. Accurate timestamping is crucial for evaluating network performance, particularly in Time-Sensitive Networking (TSN). We explore and compare four timestamping techniques within a TSN emulation context, though its findings extend to other network scenarios. The study leverages the Mininet emulator to model TSN networks, defining hosts, bridges, links, and traffic streams. It characterizes …

Phase-based analysis and control of low Reynolds number aeroelastic flows
Chathura R. Sumanasiri, Tulsi Ram Sahu, Aditya G. Nair
https://arxiv.org/abs/2506.00306

Phase-based analysis and control of low Reynolds number aeroelastic flows
Flutter in lightweight airfoils under unsteady flows presents a critical challenge in aeroelastic stability and control. This study uncovers phase-localized mechanisms that drive the onset and suppression of flutter in a freely pitching airfoil at low Reynolds number. By introducing targeted impulsive stiffness perturbations, we identify critical phases that trigger instability. Using phase-sensitivity functions, energy-transfer metrics, and dynamic mode decomposition, we show that flutter aris…

The amazing thing is that it’s an extremely low resource server.
Ubuntu with 1C and 1GB ram only!
#Insurgency #SteamGame #GameServer

MAEBE: Multi-Agent Emergent Behavior Framework
Sinem Erisken (Independent Researcher), Timothy Gothard (Independent Researcher), Martin Leitgab (Independent Researcher), Ram Potham (Independent Researcher)
https://arxiv.org/abs/2506.03053

MAEBE: Multi-Agent Emergent Behavior Framework
Traditional AI safety evaluations on isolated LLMs are insufficient as multi-agent AI ensembles become prevalent, introducing novel emergent risks. This paper introduces the Multi-Agent Emergent Behavior Evaluation (MAEBE) framework to systematically assess such risks. Using MAEBE with the Greatest Good Benchmark (and a novel double-inversion question technique), we demonstrate that: (1) LLM moral preferences, particularly for Instrumental Harm, are surprisingly brittle and shift significantly …

My aging #Ubiquiti Edgerouter-X is failing. So, I spent 3 hours yesterday trying to set up a new #Unifi Gateway Max without success. I'm returning it.
I decided to just get a #miniPC with dua…

Endlich die neue 1 TB SSD in das alte Thinkpad-Notebook eingebaut und #Lubuntu neu installiert. Läuft jetzt merklich schneller. Zuvor hatte ich schon den RAM von 4 auf 16 GB aufgerüstet.

Multi-cloud crushing -- the collective survival of cold clouds in galactic outflows
Benedikt S. Seidl, Max Gronke, Ryan Jeffrey Farber, Klaus Dolag
https://arxiv.org/abs/2506.05448

Multi-cloud crushing -- the collective survival of cold clouds in galactic outflows
The ram-pressure acceleration of cold gas by hot outflows plays a crucial role in the dynamics of multiphase galactic winds. Recent numerical studies incorporating radiative cooling have identified a size threshold for idealized cold clouds to survive within high-velocity outflows. This study extends the investigation to a more complex morphology of cold gas as observed in the interstellar medium. We conduct three-dimensional hydrodynamic simulations of ensembles of individual spherical clouds …

A Gibbs Sampler for Efficient Bayesian Inference in Sign-Identified SVARs
Jonas E. Arias, Juan F. Rubio-Ram\'irez, Minchul Shin
https://arxiv.org/abs/2505.23542

A Gibbs Sampler for Efficient Bayesian Inference in Sign-Identified SVARs
We develop a new algorithm for inference based on SVARs identified with sign restrictions. The key insight of our algorithm is to break apart from the accept-reject tradition associated with sign-identified SVARs. We show that embedding an elliptical slice sampling within a Gibbs sampler approach can deliver dramatic gains in speed and turn previously infeasible applications into feasible ones. We provide a tractable example to illustrate the power of the elliptical slice sampling applied to si…

From the XMRig benchmarks. https://xmrig.com/benchmark
I wonder why the CPU with 384 threads and 384 GB RAM is doing a little bit better than the CPU with 768 threads and 768GB RAM… oh, for some reason they only ran 384 threads on the fancier CPU.
I wanna see about mining because I have a fr…

Just pulled out the HP Stream 7 for something!
Iydk this thing was always cheap, but at one point Microsoft had a coupon that made it £49!
Atom Z3735, 1gb RAM, 32gb eMMC... it was passable with Windows 8, dog slow with 10.
Linux = ???

Evaluating the impact of the L3 cache size of AMD EPYC CPUs on the performance of CFD applications
Marcin Lawenda, {\L}ukasz Szustak, L\'aszl\'o K\"ornyei, Flavio Cesar Cunha Galeazzo, Pawe{\l} Bratek
https://arxiv.org/abs/2505.17934

Evaluating the impact of the L3 cache size of AMD EPYC CPUs on the performance of CFD applications
In this work, the authors focus on assessing the impact of the AMD EPYC processor architecture on the performance of CFD applications. Several generations of architectures were analyzed, such as Rome, Milan, Milan X, Genoa, Genoa X and Bergamo, characterized by a different number of cores (64-128), L3 cache size (256 - 1152 MB) and RAM type (8-channel DDR4 or 12-channel DDR5). The research was conducted based on the OpenFOAM application using two memory-bound models: motorBike and Urban Air Pol…

Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG 07-07-070
Koshy George, et al.
https://arxiv.org/abs/2505.23342

Euclid: Early Release Observations of ram-pressure stripping in the Perseus cluster. Detection of parsec scale star formation with in the low surface brightness stripped tails of UGC 2665 and MCG +07-07-070
Euclid is delivering optical and near-infrared imaging data over 14,000 deg$^2$ on the sky at spatial resolution and surface brightness levels that can be used to understand the morphological transformation of galaxies within groups and clusters. Using the Early Release Observations (ERO) of the Perseus cluster, we demonstrate the capability offered by Euclid in studying the nature of perturbations for galaxies in clusters. Filamentary structures are observed along the discs of two spiral galax…

Investigation of Martian UV Dayglow Emissions in the Southern Hemisphere during Solar Quiet-time Conditions: Insights from Multi-year MAVEN/IUVS Observations
Aadarsh Raj Sharma, Lot Ram, Sumanta Sarkhel
https://arxiv.org/abs/2505.13977

Investigation of Martian UV Dayglow Emissions in the Southern Hemisphere during Solar Quiet-time Conditions: Insights from Multi-year MAVEN/IUVS Observations
The southern hemisphere of Mars possesses concentrated region of strong crustal magnetic fields (CMF), which generate localized magnetic anomalies that can influence atmospheric dynamics and energy deposition in the Martian thermospheric-ionospheric system. Although their effects on the atmosphere (>200 km) in the southern hemisphere are well documented, however their role in modulating the behavior of atmospheric plasma and neutrals below 200 km are poorly understood. The atmosphere at these a…

So many computers in the e-waste bin today. I grabbed 4 Dells, all 3rd gen i3s with 4 or 8 GB of RAM. Three of them have half-height PCIe dGPUs. One has a HDD but the rest of the HDDs were missing. They probably just forgot to remove one before recycling.
I probably need to get a bunch of cheap SATA SSDs and 2.5"->3.5" drive brackets. Not sure what I'm going to do with all of this though! One will be Guix System. Maybe one for FreeDOS and such.
(I already found t…