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@3outeille
3outeille / pipeline_parallel.py
Last active December 2, 2024 16:32
Self contained example of how pipeline parallel works (AFAB and 1F1B) in 200 LOC
#VERBOSE=0 torchrun --nproc_per_node 3 self_contained_pp_LOC.py
import os, random, numpy as np, torch, torch.nn as nn, torch.distributed as dist, torch.nn.functional as F
from torch.optim import AdamW
from torch.utils.data import DataLoader, DistributedSampler
from datasets import load_dataset
from transformers import AutoConfig, AutoModelForCausalLM, AutoTokenizer
STEP, local_rank, world_size, verbose = 0, int(os.environ["LOCAL_RANK"]), int(os.environ["WORLD_SIZE"]), os.environ.get("VERBOSE", "0") == "1"
def set_all_seed(seed):
@karpathy
karpathy / stablediffusionwalk.py
Last active December 3, 2024 07:45
hacky stablediffusion code for generating videos
"""
stable diffusion dreaming
creates hypnotic moving videos by smoothly walking randomly through the sample space
example way to run this script:
$ python stablediffusionwalk.py --prompt "blueberry spaghetti" --name blueberry
to stitch together the images, e.g.:
$ ffmpeg -r 10 -f image2 -s 512x512 -i blueberry/frame%06d.jpg -vcodec libx264 -crf 10 -pix_fmt yuv420p blueberry.mp4
@tylerneylon
tylerneylon / mnist.py
Last active December 22, 2024 20:15
A function to load numpy arrays from the MNIST data files.
""" A function that can read MNIST's idx file format into numpy arrays.
The MNIST data files can be downloaded from here:
http://yann.lecun.com/exdb/mnist/
This relies on the fact that the MNIST dataset consistently uses
unsigned char types with their data segments.
"""