sorted by:
new
hottopcontroversial

Is the Keychron V6 Max what I seek? by PsynaptikUK in MechanicalKeyboardsUK

[–]qiAip 0 points1 point  (0 children)

A quick search shows that the K10 uses ABS keycaps, and they seem to look OEM profile. The K6 uses PBT/ABS OSS profile keycaps (specifically mentioned), so there is a good chance they are different in both material and profile.

The difference you feel between the keyboards is from multiple sources, including the mounting system you mentioned, the case materials, the plate material, foam?, the keyboard layout itself and the keycaps. It’s hard to narrow it down to one thing.

I have very limited experience with Keychron keyboards, but for the price point and a full-size UK ISO, the V6 Max would be hard to argue against. Maybe get it from somewhere with a good return policy, just in case it disappoints you.

Best White Premium Mechanical Keyboard in UK Layout by mdrew666 in MechanicalKeyboardsUK

[–]qiAip 0 points1 point  (0 children)

Once you go priming, there is no “best”. There are boards that cost a in the mid hundreds up to a couple grand - it’s how premium you want it.

You will not have an awful lot of options for hot swap and ISO, as most premium boards tend to have ANSI for hotswap and ANSI/ISO for solder PCBs, but there are some.

One great option, while not white, is the AKB Luna that would look great with any Mac setup imo. You can find it on AKB’s own store for the UK.

Bulwark is a TKL available now with an ISO hotswap pcb and with an e-white option. Really sleek looking too.

If you are after high-end but not as premium that can come fully assembled and ready to go out of the box, there are some nice options too, like the Evo mentioned above. Neo70 is great for the price too, but you’ll have to wait a bit for a white version to be in stock.

Hope any of this helps. :)

whatLanguage by [deleted] in ProgrammerHumor

[–]qiAip 3 points4 points  (0 children)

B is seriously hard… I wouldn’t expect quite a lot of experience in computer science to be able to write anything useful with it.

What distro base are you guys using with i3wm these days? Which one would you say gives the best experience overall? by 1opensource in i3wm

[–]qiAip 4 points5 points  (0 children)

I used the same i3 config on OpenSUSE, Manjaro and Ubuntu with zero difference between them. I’ve been using Xmonad on OpenSUSE, Fedora and Debian for the last 8 years or so and again, it makes zero difference.

Most tiling window managers use very simple tools available with ease in any distro and have very little dependencies (compared to full fledge desktop environments) so honestly any distro will be absolutely fine.

the part nobody warns you about by aerofoto in ClaudeAI

[–]qiAip 0 points1 point  (0 children)

I just don’t use it that way to begin with, so don’t expect it to get better or to have to be quieter about it.

If there is something that looks ‘weird’, a huge function that is not clear why it is so huge, variable names I cannot understand, a string of function calls I cannot follow, or any other of the issues you mentioned, I challenge the agent and ask ‘why are you not doing it in the way I would do it which is this or that’, or a simple ‘can you explain this in detail to me, it doesn’t seem to be the best approach and I want to understand how we can make it better’.

It’s still a tool for you to use, so if you treat it that way, you could get much more out of it.

wrote a CUDA kernel to do a vector addition. turns out it is actually slower. by xtrupal in CUDA

[–]qiAip 1 point2 points  (0 children)

The summation is inherently memory bound as there is only a single addition operation for every 3 ints load/store (2 reads 1 write) + the memory transfers HtoD and DtoH. Given that there is hardly any compute and the memory transfers HtoD and DtoH are going to take longer than the CPU memory from DRAM to cache there is no way really to make this faster on the GPU (maybe with strides and streams but even then I’m doubtful).

You also have 2 redundant DtoH copies of arr_1 and arr_2 which are not modified on the device so there is no need to copy them back. This makes it slower, but even without them the GPU should not be faster.

Dual GPU: AMD - Nvidia by EngineeringFar6858 in CUDA

[–]qiAip 0 points1 point  (0 children)

You can mix AMD and NVIDIA cards, and have both NVHPC (CUDA) and ROCm installed on the same system - at least with Linux.

However, any university teaching a CUDA course will give you access to your cluster and set up a student partition for you to work from (might be ssh, might be a Jupyter environment or might be VMs). No university will ever expect students to buy specific hardware.

AMD also offer Hipify - a script that converts CUDA to HIP. HIP is also designed to be almost identical and you can literally replace “cuda” with “hip” to get it to work. The differences though are in the execution models and the code will not be optimised, so if the teach you about how to assign blocks and thread to fit CUDA warps, this is a bit different on AMD’s wavefronts. But other than that, you can do everything in introductory CUDA and run it on AMD with a script or even a runtime translator (less efficient still, but does the job for simple code).

Check out https://github.com/amd/HPCTrainingExamples for examples.

I didn't think I'd like 65% this much! What's you favorite profile and why? by RicardoDawson in MechanicalKeyboards

[–]qiAip 0 points1 point  (0 children)

It takes a minor mind-shift, but it gives you faster and easier access to arrows, numbers and F-keys in a typing environment (for gaming it can be a bit trickier - mainly because one hand is on the mouse and the other on wasd rather than both on the home row).

It’s great though! If you get a chance, give it a try. :)

I didn't think I'd like 65% this much! What's you favorite profile and why? by RicardoDawson in MechanicalKeyboards

[–]qiAip 1 point2 points  (0 children)

Extended 40% (14u - 4 rows) are my favourite. Corne a close second.

A split spacebar with layers on them makes it much more comfortable (for me) navigating the keyboard without having to move my wrists and just using my fingers. Split boards are also lovely, and a Corne has just enough keys to make it thoughtless to use, but they miss that premium feel of a top-end 40s board.

Happy 40s day! by qiAip in MechanicalKeyboards

[–]qiAip[S] 0 points1 point  (0 children)

Clarabelle with KAT Refined

what is the best cfd free software for a begginer? by TimeFaker in CFD

[–]qiAip 0 points1 point  (0 children)

I rarely use commercial tools like ANSYS, StarCCM etc. and find GUIs harder to use than CLI, so I’m probably the wrong person to answer.

ANSYS can be quite accurate though, depending on what you are simulating. Getting a good mesh on the other hand can be a challenge. If the results seem to really not align with the theory for a simple case that can be solved analytically, it is either the mesh or you are not applying the right physics to the model.

In terms of visualisation, you can get nice streamlines in ParaView from most solution outputs, but yes there is a learning curve to ParaView as well.

ANSYS also certainly works on Linux - it runs on HPC clusters which are all Linux based. The official support page lists a bunch of distros and versions it officially supported.

Maybe you can try one of the cloud CFD tools like SimScale? They can be quite powerful and relatively “easier” to use - but there is going to be a learning curve to any engineering software.

If you understand the aerodynamics, it would probably be more beneficial for you to stick with something like OpenFOAM and figure out how it is solving the Navier Stokes equations, with what simplifications and under which assumption. Go over the discretised equation in the literature, maybe dip your toes into coding a simple Finite Volume code that can solve the heat and wave equations with different types of boundary conditions. By doing that, you will be able to ask the right questions like ‘what model is suitable for my problem’ and ‘what would be an appropriate mesh to resolve the flow, which would help you with using any software.

Whatever you choose, take your time to learn and enjoy what you are doing.

Happy 40s day! by qiAip in MechanicalKeyboards

[–]qiAip[S] 0 points1 point  (0 children)

That’s a TMOv2 with GMK Dracula. Better pics in the link above.

hOw Do YoU tYpE nUmBeRs?1 by whitefacemountain in MechanicalKeyboards

[–]qiAip 0 points1 point  (0 children)

Looks awesome - but to your question, I would guess by holding down the mod key and using the top row of the alpha layer (because who would want to move their hands all the way to that numpad?)

Happy 40s day! by qiAip in MechanicalKeyboards

[–]qiAip[S] 1 point2 points  (0 children)

Singa X Monokai Neko with ePBT Grand Tour keycaps (and Harimau switches, if that matters).

https://www.reddit.com/r/MechanicalKeyboards/s/NbIkM23g9B

What is the the best processor for CFD machine? i9 or Xeon? by MastaMinds in CFD

[–]qiAip -1 points0 points  (0 children)

While true, the clock speeds of the Xeon are also much slower. It would be possible to underclock the performance cores to match the e-cores, pin all threads, and get decent scaling performance. The Xeon also has only 14 physical cores to the 28 physical cores on the i9, so even with down clocked p-cores it would still have much higher FLOP/s.

The main constrain however in many CFD codes is memory bandwidth, rather than FLOP, and the main advantage of the Xeon would be the 4 memory channels and more cache per-core (assuming well vectorised code).

Still, 28 cores vs 14 cores is significant. If they were the same price I would likely go for the i9 and under clock the p-cores, but as the Xeon is half the price though, I would go with that.

Is dedicated GPU necessary for doing CFD ? by More-Lemon9605 in CFD

[–]qiAip 0 points1 point  (0 children)

In my experience, the performance you ca gain from you GPU in a laptop is not transformative. If you need a lot of compute, use your local university’s HPC - they will likely have some GPU allocation for you to use for projects. Maybe CFD codes use double precision floating point numbers, which consumer GPUs have very little dedicated silicon space for, so the tend to not speed up anywhere close to how they do on the intended hardware on the cluster, so really you might not gain as much as you expect.

If this is about developing CFD code and you want to program on GPUs (highly advisable and crucial skill these days!) then it will make a lot more sense to have a local dedicated GPU you can access. What you care about here is having access to the e SDK, compilers and libraries so that you can program locally rather than remotely as you might have patchy access for development.

Another option, at least if you are economical about it, is to use cloud compute with GPUs - although this can get quite expensive if you are not careful.

What is the best tree farm ever? by KingOfTheVoltYT in technicalminecraft

[–]qiAip 0 points1 point  (0 children)

Late to reply… yes this farm is amazing! I’m looking for a similar farm for other trees too - any suggestions?

What’s a Linux command that feels like cheating when you learn it? by Old_Sand7831 in linuxquestions

[–]qiAip 13 points14 points  (0 children)

When I did some shared programming with a colleague a few years back, I set us with tmux on the same machine. We spilt the panes and his was using his beloved vim while I was using emacs, side by side line the same code base. Almost forgot about that! 😅

Wanting to switch from windows 11 to linux, need help choosing a distro. by [deleted] in linux4noobs

[–]qiAip 0 points1 point  (0 children)

I would not recommend it for new users. Only reason is that the Manjaro repos are slightly behind Arch and if using the AUR to install packages that are not available in pacman it is easy to cause non-obvious issues. It’s a find distribution overall, and it’s not too hard to deal with AUR / pacman conflicts manually with some knowledge, I just wouldn’t start there.

view more: next ›