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optomas

u/optomas

r/LocalLLaMA•

Rejoice, GPU poor brethren. RTX 3060 12BG, llama-cpp, Model: DeepSeek-R1-Distill-Qwen-14B-Q4_K_M.gguf

Question | Help

The purpose of this post is twofold. To give hope to those with older video cards, and to solicit further optimizations from the larger community. Here's the script:

cat qwen.sh 
#!/bin/bash

# Configuration Variables
# ---------------------
MODEL_PATH="../models/DeepSeek-R1-Distill-Qwen-14B-Q4_K_M.gguf"     # Path to your GGUF model file
LLAMA_SERVER_PATH="./build/bin/llama-server" # Path to your llama-server executable
N_GPU_LAYERS=99 # Number of layers to offload to GPU (use 99 to offload as much as possible)
N_CTX=14384 # Context window size (tokens). Adjust based on VRAM and model needs.
PORT=NNNNN # Port for the llama-server API

# --- Perform
08
r/electricians•

Looking for other ways to deal with the pressures of this job.

We must be perfect. A loose connection is a fire. Inadequate conductor ampacity is a fire. Incorrect overload protection and fusing is a fire or a burnt up motor. A loose ground is equipment becoming energized if a motor lead contacts the frame. Wire nut falls off and your buddy is next in the box, doesn't see the exposed copper.

How do you people deal with it? We are human, we make mistakes. What steps do you take to mitigate those mistakes?

55
r/dwarffortress•

Postmortem analysis of fun. Novice spoilers ahead, but I figure you need as much help as me, so read away.

The dwarf swordsdwarf corpse strikes the mayor in the head with her ({bismuth bronze shield}) and the injured part is crushed! An artery has been opened by the attack!

So ... zombie attack. Had everything sealed up. Unfortunately no water inside. Everybody is dying of thirst. Make a small hole in the bottom of the lake, set it as a water source, and the drunken idiots swarm outside to the above ground water source. Ooops.

... If the dwarves can swim out ... ARGH! Recall everybody and destroy the stair down. Not happening. Wall off the stair! Yep, the undead can swim down alright. They are through the lake and into the corridor. Wall almost done!

Here's Jonnhy! Wall has

3221
r/MechanicalEngineering•

Encountered an expansion bearing on the drive side of a fan last night. Is this an exception to the rule, or is it wrong?

System is subject to 500° F. Spin is 1730 rpm.

  • 100 hp motor.
  • 5 slot sheaves, taper locked, 8 foot center distance, belt drive.
  • 3 3/16 inch keyed shaft.
  • 4 bolt flange bearings.
  • 6 foot fan.

Usually there is a fixed bearing on the drive side of the shaft, which allows no axial movement. This keeps the sheaves aligned. The fan side is usually an expansion bearing. As things heat up, the shaft needs to grow without binding the bearings. An expansion bearing does allow for axial movement.

So the fan pushes a bit deeper into the fan housing, and everything is happy.

tldr; We encountered an expansion bearing on the drive side. I want to know if this is common practice for high

22
r/Audi•

So I found the turbo on my new to me 2005 audi tt. Oh. My. God.

So I bought a 2005 audi tt. Just the 1.8l fwd, not even a quattro. Been very happy with the car, it does what I want. Something to run while I work on my truck. Basically a golf with a nicer interior and exterior, right?

No. Good Lord, No. The test drive was mundane, I didn't want to hurt the old man I got it from. Checked the brakes, handling, and visibility, mostly. Stepped on the gas a little bit. Good four banger acceleration, nothing special. A volkswagon. My wife has one. I like it.

Coming home from work tonight, let the vehicle warm up a bit. Dicked around with the clock, set the date. Took off for home. Midnight or so, nobody else out here. Turned onto a long stre

7329
r/AskEngineers•

Looking for a good textbook on steam generation.

I have a hand out called "The Basics of Steam Generation," by Sebastian Teir. It's horrible. I suspect much has been lost in the translation from Finnish.

I would like to have a deeper understanding of steam generation. Does anyone have something better than Wikipedia?

1613
r/askmath•

Rules for negative coefficients in denominator?

I have searched khanacademy, google, wikipedia, and here. Unable to find set of rules for when to get rid of negative denominators and when to leave them negative.

-5ef+7eg+5e-6 = f+6

Solve for e.

I get:

e = -f-12 / 5f-7g-5

The correct answer is:

e = f+12 / -5f+7g+5

Thought if the first coefficient in the denominator is negative, then swap out the signs. That rule does not work in the above problem ...

In searching for an answer, I also came across the fact that this simplification will not really matter in higher level math. It's OK, I want to have a solid foundation. Can't break the rules if you do not know them, right?

tldr; Incorrectly guessed at simplification rule. Poin

04