---
title: IPPL
keywords: IPPL software, compile
summary: "Independent Parallel Particle Layer (IPPL) is a performance portable C++ library for Particle-Mesh methods"
sidebar: merlin7_sidebar
toc: false
permalink: /merlin7/ippl.html
---

## IPPL

Independent Parallel Particle Layer (IPPL) is a performance portable C++ library for Particle-Mesh methods. IPPL makes use of Kokkos (https://github.com/kokkos/kokkos), HeFFTe (https://github.com/icl-utk-edu/heffte), and MPI (Message Passing Interface) to deliver a portable, massively parallel toolkit for particle-mesh methods. IPPL supports simulations in one to six dimensions, mixed precision, and asynchronous execution in different execution spaces (e.g. CPUs and GPUs).

## Licensing Terms and Conditions

GNU GPLv3

## How to run on Merlin7 
### A100 nodes
[![Pipeline](https://gitea.psi.ch/HPCE/spack-psi/actions/workflows/ippl_gpu_merlin7.yml/badge.svg?branch=main)](https://gitea.psi.ch/HPCE/spack-psi)
```bash
module use Spack unstable
module load gcc/13.2.0 openmpi/4.1.6-57rc-A100-gpu                 
module load boost/1.82.0-e7gp fftw/3.3.10 gnutls/3.8.3 googletest/1.14.0 gsl/2.8 h5hut/2.0.0rc7 openblas/0.3.26-omp cmake/3.31.6-oe7u

cd <path to IPPL source directory>
mkdir build_gpu
cd build_gpu

cmake -DCMAKE_BUILD_TYPE=Release -DKokkos_ARCH_AMPERE80=ON -DCMAKE_CXX_STANDARD=20 -DIPPL_ENABLE_FFT=ON -DIPPL_ENABLE_TESTS=ON -DUSE_ALTERNATIVE_VARIANT=ON -DIPPL_ENABLE_SOLVERS=ON -DIPPL_ENABLE_ALPINE=True -DIPPL_PLATFORMS=cuda ..
make [-jN]
```

### GH nodes
[![Pipeline](https://gitea.psi.ch/HPCE/spack-psi/actions/workflows/ippl_gh_merlin7.yml/badge.svg?branch=main)](https://gitea.psi.ch/HPCE/spack-psi)

```bash
salloc --partition=gh-daily --clusters=gmerlin7 --time=08:00:00 --ntasks=4 --nodes=1 --gpus=1 --mem=40000 $SHELL
ssh <allocated_gpu>

module use Spack unstable
module load gcc/13.2.0 openmpi/5.0.3-3lmi-GH200-gpu  
module load boost/1.82.0-3ns6 fftw/3.3.10 gnutls/3.8.3 googletest/1.14.0 gsl/2.7.1 h5hut/2.0.0rc7 openblas/0.3.26 cmake/3.31.4-u2nm  

cd <path to IPPL source directory>
mkdir build_gh
cd build_gh

cmake -DCMAKE_BUILD_TYPE=Release -DKokkos_ARCH_HOPPER90=ON -DCMAKE_CXX_STANDARD=20 -DIPPL_ENABLE_FFT=ON -DIPPL_ENABLE_TESTS=ON -DUSE_ALTERNATIVE_VARIANT=ON -DIPPL_ENABLE_SOLVERS=ON -DIPPL_ENABLE_ALPINE=True -DIPPL_PLATFORMS=cuda ..
make [-jN]
```