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build swift velociraptor on COSMA

Last edited by John Helly

This guide describes how to build SWIFT with the structure finding code called VELOCIraptor.

  1. Download SWIFT and VELOCIraptor
git clone git@gitlab.cosma.dur.ac.uk:swift/swiftsim.git
git clone https://github.com/pelahi/VELOCIraptor-STF.git
  1. Build VELOCIraptor

This shows how to compile velociraptor with optimization on Cosma. Load modules:

module purge
module load intel_comp/2018 intel_mpi/2018
module load parallel_hdf5/1.10.3 gsl/2.4
module load cmake

Create the build directory

cd VELOCIraptor-STF
mkdir build
cd build

Configure with cmake and then compile

cmake .. \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_CXX_FLAGS_RELEASE="-O3 -ipo -xAVX -DNDEBUG" \
    -DCMAKE_C_FLAGS_RELEASE="-O3 -ipo -xAVX -DNDEBUG" \
    -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
    -DCMAKE_C_COMPILER=icc \
    -DCMAKE_CXX_COMPILER=icpc \
    -DVR_USE_SWIFT_INTERFACE=ON
make
  • Make sure that the python module is unloaded on COSMA5 as it causes problems when linking VELOCIraptor with SWIFT
  1. Build SWIFT
module purge
module load intel_comp/2018 intel_mpi/2018 fftw/3.3.7
module load parallel_hdf5/1.10.3 gsl/2.4 parmetis/4.0.3
module load gsl/2.4

./autogen.sh
./configure CC=icc CXX=icpc CFLAGS=-qopt-zmm-usage=high LDFLAGS="-cxxlib" \
    --enable-ipo \
    --with-hdf5 \
    --with-fftw \
    --with-parmetis \
    --with-gsl \
    --with-tbbmalloc \
    --with-velociraptor=`pwd`/../VELOCIraptor-STF/build/src

Note: make sure that the same compiler, mpi, gsl and hdf5 modules are loaded that were used to build the VELOCIraptor library. VELOCIraptor is now compatible with parallel hdf5 because it only uses the C API.

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