BrainX Ecosystem

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Full-Scale Simulation AI Compatibility Differentiable Optimization Powered by JAX

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Packages

brainunit brainstate brainpy.state braincell brainmass brainevent braintrace braintools

Legacy

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Getting Started

Installation
Quickstart

Tutorials

Data structures & operators
Custom operators

How-to Guides

Working with data structures
Building & extending
- Build an event-driven E/I network
- Compile a raw CUDA/C++ kernel

Explanation

What is event-driven computation?
Sparse format trade-offs
Just-in-time connectivity
The custom-kernel architecture
Frequently Asked Questions

Reference

Python API
Custom kernels
Changelog

.rst

FixedPreNumConn

Contents

FixedPreNumConn

FixedPreNumConn#

brainevent.FixedPreNumConn#: alias of FixedNumPerPost

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FixedPreNumConn

By BrainX Ecosystem

© Copyright 2024, brainevent.

Last updated on Jun 07, 2026.

BrainX Ecosystem

An open, differentiable ecosystem for brain simulation. We build the foundations the next decade of computational neuroscience will run on.

Platform

Full-Scale Simulation
AI Compatibility
Differentiable Optimization
Powered by JAX

Documentation

brainunit
brainstate
braincell
brainevent
All 9 packages →

Research

Papers about BrainX
Papers using BrainX
Papers citing BrainX
How to cite →

Community

Contributors
Discussions
Issue tracker
Get involved

© 2026 BrainX Developers · How to cite →

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