NAMD, recipient of a 2002 Gordon Bell Award, a 2012 Sidney Fernbach Award, and a 2020 Gordon Bell Prize, is a parallel molecular dynamics code designed for high-performance simulation of large biomolecular systems. Based on Charm++ parallel objects, NAMD scales to hundreds of cores for typical simulations and beyond 500,000 cores for the largest simulations. NAMD uses the popular molecular graphics program VMD for simulation setup and trajectory analysis, but is also file-compatible with AMBER, CHARMM, and X-PLOR. NAMD is distributed free of charge with source code. You can build NAMD yourself or download binaries for a wide variety of platforms. Our tutorials show you how to use NAMD and VMD for biomolecular modeling.

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Breaking News

NAMD and VMD are part of the team winning the 2020 ACM Gordon Bell Special Prize for high performance computing-based COVID-19 research, for the paper AI-Driven Multiscale Simulations Illuminate Mechanisms of SARS-CoV-2 Spike Dynamics, presented at Supercomputing 2020, Nov 18, 2020. ACM Gordon Bell Special Prize

University of Illinois has established a oneAPI academic Center of Excellence, using oneAPI to bring its cross-architecture single programming model to NAMD in order to address exascale computing challenges of COVID-19.

NAMD is able to achieve 9x throughput with version 3.0alpha running on NVIDIA A100 GPUs. Details available on the NVIDIA developer blog.

The new NAMD reference paper has been published online. The paper provides an overview of the many features available in NAMD, its scalability on CPU and GPU platforms on system sizes of up to a billion atoms, and the recent performance enhancements for GPU accelerators.

Other Spotlights 

Spotlight: NAMD 2.12 Delivers Qwik, Quantum, and Cloud (April 2017)

NAMD Goes Quantum

image size: 507.7KB
made with VMD

The 2.12 release of the molecular dynamics program NAMD provides major enhancements in performance, flexibility, and accuracy, complementing the greatly enhanced usability provided by the QwikMD GUI released in VMD 1.9.3. NVIDIA GPU-accelerated simulations with NAMD 2.12 are up to three times as fast as 2.11, particularly for implicit solvent simulations and single-node simulations of smaller systems. NAMD 2.12 is also optimized for the new Intel Xeon Phi KNL processors found in Argonne Theta, NERSC Cori, and TACC Stampede 2. NAMD 2.12 builds on the asynchronous multi-copy scripting capabilities introduced in NAMD 2.11 with the ability to modify and reload the molecular structure, enabling development of grand canonical and constant pH ensemble methods, as well as an optional Python interface for advanced on-the-fly analysis. Finally, NAMD 2.12 provides a complete, no-recompilation-needed interface for hybrid QM/MM with both the semi-empirical code MOPAC and the ab initio/DFT code ORCA. More on new features in the 2.12 release of NAMD can be found here. NAMD is available free-of-charge as source code, precompiled binaries, pre-installed at supercomputer centers, and now jointly with VMD as one-click interactive molecular modeling on the Amazon cloud.

Overview

Why NAMD? (in pictures)
How to Cite NAMD
Features and Capabilities
Performance Benchmarks
Publications and Citations
Credits and Development Team

Availability

Read the License
Download NAMD Binaries (also VMD)
Build from Source Code - Git access now available
Run at NCSA, SDSC, NICS, or Texas

Training

NAMD Developer Workshop in Urbana (August 19-20, 2019)
PRACE School on HPC for Life Sciences (June 10-13, 2019)
"Hands-On" Workshop in Pittsburgh (May 13-17, 2019)
Charm++ Workshop in Urbana (May 1-2, 2019)
Enhanced Sampling and Free-Energy Workshop (Sept 10-14, 2018)
NAMD Developer Workshop in Urbana (June 11-12, 2018)
"Hands-On" Workshop in Pittsburgh (May 21-25, 2018)
"Hands-On" QM/MM Simulation Workshop (April 5-7, 2018)
Older "Hands-On" Workshops

Support

Having Problems with NAMD?

NAMD Wiki (Recent Changes)
  
NAMD-L Mailing List (Archive)
  
Tutorial-L Mailing List (Archive)
  

Mailing List Issues for Yahoo.com Addresses

Announcements

NAMD 2.14 Release (Aug 2020)
NAMD 2.14 New Features
NAMD 2.13 Release (Nov 2018)
NAMD 2.13 New Features
One-click NAMD/VMD in the cloud
QM/MM Interface to MOPAC and ORCA
QwikMD GUI Released in VMD 1.9.3
Previous Announcements

Documentation

NAMD 2.14 User's Guide
   
  (also 5.1M HTML or 5.5M PDF)
NAMD 2.14 Release Notes
Running Charm++ Programs (including NAMD)
Running GPU-Accelerated NAMD (from NVIDIA)
Introductory NAMD Tutorials
All NAMD & VMD Tutorials
  

Related Codes, Scripts, and Examples
NAMD Wiki (Recent Changes)
Older Documentation

News

NAMD and VMD share in COVID-19 Gordon Bell Special Prize
NAMD reference paper published online
Coronavirus Simulations by U. Delaware Team
Coronavirus Simulations on Frontera Supercomputer
Breakthrough Flu Simulations
Oak Ridge Exascale Readiness Program
Prepping for Next-Generation Cray at NERSC
Supercomputing HIV-1 Replication
How GPUs help in the fight against staph infections
Computational Microscope Gets Subatomic Resolution
Opening New Frontiers in the Battle Against HIV/AIDS
HIV Capsid Interacting with Environment
Assembling Life's Molecular Motor
Older News Items