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sedacs

Scalable Ecosystem, Driver, and Analyzer for Complex Chemistry Simulations (SEDACS) enables massively parallel atomistic simulations that can seamlessly integrate with a diverse range of available and emerging quantum chemistry codes at different levels of theory.

Supporting ab initio, semiempirical quantum mechanics (SEQM),and coarse-grained flexible charge equilibration (ChEQ) models, this is a unified framework to simulate and analyze the MD of complex chemical systems and materials.

SEDACS also enables the anlysis of trajectories using novel graph-based ML schemes and quantum-response information to capture and visualize hidden, non-local quantum features that cannot be seen from the geometry alone.

Finally, SEDACS provides advanced mixed-precision electronic structure solver library that uses AI-hardware accelerators.

Our target customer is a Computational Chemist domain expert working on complex materials systems or developing new quantum capabilities that can easily be deployed at scale.

We hence provide transparent implementations that closely follow a “white-board” physics and mathematics presentation. The threshold to understand and work with this codebase for a domain expert is purposely kept low.

Installation

In Mac conda environment with MPS acceleration

conda create -n sedacs  pytorch::pytorch torchvision torchaudio openmpi mpi4py scipy jupyter nb_conda_kernels python=3.10 -c pytorch

In Linux conda environment with CUDA acceleration

conda create -n sedacs pytorch torchvision torchaudio pytorch-cuda=11.8 openmpi mpi4py scipy jupyter nb_conda_kernels python=3.10 -c pytorch -c nvidia

Folder structure

The current codebase has the following folder structure:

.
├── docs
├── driver
├── gpu
├── latte
├── mods
├── proxya
└── test

proxya

Proxya code as explained in the proposal. This proxy code should perform up to a full SCF optimization of the density matrix. It is written in three different languages: Python, Fortran, and C.

gpu

This is an implementation of the GPU/AI-solver library.

latte

This is a code that generates "Latte" Hamiltonians from input coordinates files (xyz or pdb) and constructs the density matrix.

mods

Auxiliary Python modules. These modules will be used as building blocks to develop SEDACS.

driver

Scripts to exercise the code.

License O# (O4732)

This program is open source under the BSD-3 License.

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O4732 SEDACS Scalable Ecosystem, Driver, and Analyzer for Complex Chemistry Simulations

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