Add LongCat-2.0

[kernelpool]

Leaving this here for those interested!

HF checkpoint: https://huggingface.co/meituan-longcat/LongCat-2.0-FP8

Models tested (on 2x M3 Ultra):

• https://huggingface.co/kernelpool/LongCat-2.0-3bit
• https://huggingface.co/kernelpool/LongCat-2.0-3bit-UVMAX (mixed quant)

Notes:

• You have to manually fix up the model type to longcat2 when converting.

mlx.launch --verbose --backend jaccl --hostfile hosts-jaccl.json --env MLX_METAL_FAST_SYNCH=1 -- /Users/optimus/repo/mlx-lm/mlx_lm/examples/sharded_generate.py --model /Users/optimus/models/catalyst/LongCat-2.0-3bit --prompt "Who is Albert Einstein?" -m 1024
[INFO] Running /Users/optimus/repo/mlx-lm/.venv/bin/python /Users/optimus/repo/mlx-lm/mlx_lm/examples/sharded_generate.py --model /Users/optimus/models/catalyst/LongCat-2.0-3bit --prompt 'Who is Albert Einstein?' -m 1024 

The user is asking "Who is Albert Einstein?" This is a straightforward factual question about a historical figure. I need to provide a clear, accurate, and concise overview of who Albert Einstein was, covering his key contributions, significance, and legacy. 

I should structure the response to first give a concise definition, then elaborate on his major scientific achievements, his role in society, and his lasting impact. The tone should be informative and respectful, reflecting his monumental status. 

I'll start with a brief introductory sentence summarizing his identity and importance. Then I'll break down his key scientific contributions, mentioning the miracle year, special and general relativity, and the photoelectric effect. After that, I'll touch upon his public persona and advocacy work. Finally, I'll conclude with a summary of his legacy. The response should be self-contained and not require any external references.
</longcat_think>
Albert Einstein was a German-born theoretical physicist who is widely regarded as one of the most influential and iconic scientists of the 20th century. His work fundamentally reshaped humanity's understanding of space, time, matter, and energy.

Here’s a breakdown of who he was and why he matters:

### 1. The Revolutionary Scientist
Einstein's genius lay in his ability to use thought experiments and pure logic to challenge the deepest assumptions of physics. His most significant contributions include:

- **The Miracle Year (1905):** While working as a patent clerk in Bern, Switzerland, he published four groundbreaking papers that year, revolutionizing physics.
    - **Photoelectric Effect:** He proposed that light is made of discrete packets of energy (quanta, later called photons). This was the work for which he was awarded the Nobel Prize in 1921 and is foundational to quantum theory.
    - **Brownian Motion:** He provided the first convincing evidence for the existence of atoms, explaining the random movement of particles in a fluid.
    - **Special Relativity:** He showed that the laws of physics are the same for all non-accelerating observers, and that the speed of light is constant. This led to the famous equation **E=mc²**, which states that mass and energy are interchangeable.
    - **Mass-Energy Equivalence:** The equation E=mc² showed that even a small amount of mass could be converted into a tremendous amount of energy.

- **General Relativity (1915):** This was his masterpiece. He proposed that gravity is not a force, but a curvature of spacetime caused by mass and energy. This theory has been confirmed by numerous observations, from the bending of starlight to the detection of gravitational waves.

### 2. The Public Figure and Humanitarian
Einstein was more than just a scientist. He was a global celebrity and a vocal advocate for peace, civil rights, and social justice.

- **Pacifism and Anti-War Stance:** A lifelong pacifist, he was a prominent voice against World War I and later warned of the dangers of nuclear weapons, though his famous letter to President Roosevelt helped initiate the Manhattan Project.
- **Civil Rights Advocate:** After moving to the United States, he was a member of the NAACP and a fierce critic of American racism. He formed a close friendship with Paul Robeson and W.E.B. Du Bois, calling racism "a disease of white people."
- **Zionist Support:** He was a supporter of the Jewish homeland but advocated for peaceful coexistence with Arabs. He was offered the presidency of Israel in 1952, which he declined, stating he lacked the "natural aptitude and human relations" for the role.

### 3. The Iconic Image
Einstein's appearance—his wild white hair, rumpled clothes, and expressive face—became the universal archetype of the "absent-minded professor" and the genius. His quotable, witty, and deeply human statements made him a beloved figure far beyond the scientific community.

In short, Albert Einstein was a man who used his unparalleled intellect to unlock the secrets of the universe and his moral compass to advocate for a more just and peaceful world. His name is synonymous with genius, and his theories remain the bedrock of modern physics.
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Prompt: 12 tokens, 1.105 tokens-per-sec
Generation: 859 tokens, 22.802 tokens-per-sec
Peak memory: 394.154 GB