monograd 0.1.1

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monograd

Something between PyTorch and tinygrad

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Monograd supports

• Tensor library and API
• Reverse-mode autograd differentiation with a dynamic graph (DAG)
• JIT GPU Kernel compiler
• nn / optim / datasets for training

It is a lightweight, define-by-run deep learning framework built from scratch. Designed to be readable and hackable. It's a very small framework aimed at simplicity that can train real networks to high accuracy.

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Making a simple neural net in monograd:

from monograd.tensor import Tensor
from monograd.nn import Module, Linear, optim

class MyNet(Module):
    def __init__(self):
        self.l1 = Linear(784, 128)
        self.l2 = Linear(128, 10)

    def forward(self, x):
        x = self.l1(x).relu()
        x = self.l2(x)
        return x

model = MyNet()
optim = optim.SGD(model.parameters(), lr=0.01)
# Training is the same as pytorch

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monograd vs Pytorch

from monograd.tensor import Tensor

y = Tensor([[2.0,0,-2.0]], requires_grad=True)
z = y.matmul(x).sum()
z.backward()

print(x.grad) # dz/dx
print(y.grad) # dz/dy

Same thing but in PyTorch

import torch

y = torch.tensor([[2.0,0,-2.0]], requires_grad=True)
z = y.matmul(x).sum()
z.backward()

print(x.grad.tolist())  # dz/dx
print(y.grad.tolist())  # dz/dy

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Turns out you can build 95% of real world networks with monograd's available framework

Available Optimizers

• SGD(Stochastic Gradient Descent) with momentum
• Adam(Adaptive Momet Estimation)

Available Network Layers

• Linear
• Conv2D
• MaxPool2D

Available OPs

• ADD
• SUM
• SUB
• MUL
• Transpose
• ReLu
• LeakyReLu
• Reshape
• LOG
• EXP

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Running tests

chmod +x test-all.sh
./test-all.sh # will run all available tests

Run MNIST! (running on Conv2D and MaxPool2D)

PYTHONPATH=. python3 examples/mnist.py

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Roadmap

• Conv2d (CPU)
• MaxPool2D (CPU)
• general refactoring with tinygrad-like file struct(nn, datasets)
• GPU Support (CUDA/HIP)
• GPU kernel code gen (JIT)

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Installation & Dependencies

Only dependency is numpy!

git clone https://github.com/yourusername/monograd.git
cd monograd
pip install numpy