JD Russo @quasifrodo@qoto.org

@Dtl Have you tried anything like WD40 or good old PB blaster? Letting it soak in one of those might loosen that up

@magnus919 @theprint This is badass, thank you! I love stuff like this. I’ve been working on getting all my random Linux smart devices working together to do useful stuff, this is exactly in that vein.

@theprint @magnus919 Need, or want?

For what you described, even a laptop is fine. But, nothing wrong with wanting moar power!

I run all my core services on a laptop. Minecraft, Valheim, Plex, *arrs etc. The only thing that gives it any trouble at all is transcoding 4K Dolby vision content, because the GPU is too old to use for acceleration.

I fire my rack server up for fun, but between noise/power draw it’s totally unnecessary. More bays is really the only win

@mala Thank you!! This was the finished project 😁

@tinysapien Thank you! I really agree about how people like being talked to as, well, people.

It kinda feels like a microcosm of the shift in tech office culture from business attire to hoodies and jeans. We’re all just humans trying to do a good job at what we like! No need to introduce arbitrary distracting barriers to that.

@tinysapien I’m digging the validation from this. I always have a small joke or meme somewhere in my slides, just because that’s who I am and I think it keeps it more engaging and accessible. Nothing big or distracting, just a quick relevant laugh. But I’ve spent a *lot* of time before talks staring at those, trying to decide if it’s unprofessional or something.

@mala What is it with DIY hardware projects and looking like bombs?

Pictures is the first prototype of my custom thermostat

@theprint It’s pretty wild what you can do with a few hundred bucks and some enterprise hardware! Highly recommend just going for it. I had the same progression from a Pi, to a cluster of Pis, to a laptop, to a rack mount.

@tad @magnus919 @theprint Yeah... Just picked up a 1U server, and I'm blown away (no pun intended) by that fan noise!

Today's accomplishment: I have an analysis pipeline with a few parallelizable steps. I typically run my analysis in parallel on my desktop, but I've both been needing more oomph and have been running out of drive space nonstop.

My #homeserver (40 cores/80 threads with quad E4870s) is running ZFS on a RAID0 array, currently just with two 10k SAS drives. By mounting this as an NFS share on my desktop, I can put all my generated simulation data directly on that larger filesystem.

Additionally, my server is running #proxmox, and has a "science" container. I can also mount that NFS share in the science container, giving it direct access to my simulation data, and run it as a #Ray cluster head node. Now, I can do simulations on my desktop, run the single-core tasks on that machine, and farm out the parallel analysis to workers on the server, putting all 80 cores to work!

#hpc #science #clusters #scaling #docker

@gaymanifold Thanks for asking :D I do Markov state modeling where you take your simulation data, discretize it, and then construct a transition matrix. Very similar to Markov chains

Lots of room for flexibility in the discretization -- usually looks like some sort of featurization + dimensionality reduction, then clustering in that latent space.

Once you have the transition matrix, you can do things like estimate rate constants by computing fluxes into certain states, or estimate splitting probabilities/committors

Time for an #introduction! I'm a PhD candidate in #computational #biophysics working on Markov analysis of molecular dynamics #simulations. I also work on weighted ensemble enhanced sampling, and am a core maintainer of the WESTPA project. I do a lot of work with #HPC and #supercomputing clusters as well.

I'm really passionate about bringing best practices from the software development world into computational research!

I love playing with software, and I like playing with #selfhosting a number of services on my #homelab servers, from . Current setup is a Thinkpad laptop that runs the essential services, and a Supermicro quad-socket server with 4x E7-4870s for the fun stuff.

Also really into DIY, including #3Dprinting, #smarthome stuff and #homeassistant -- I spent a couple months designing and building a smart thermostat with a wireless remote thermometer from scratch because my WFH desk was close to a window and got too cold.

#science #computationalchemistry #simulation #selfhost #DIY #linux #supercomputers #technology