Darshan install notes (Aurora)

1. Runtime install (DAOS + HDF5 + PnetCDF)

Commands:
  module use /soft/modulefiles
  module load daos
  module load cmake
  module load hdf5
  module load parallel-netcdf

  git clone https://github.com/darshan-hpc/darshan.git
  cd darshan
  ./prepare.sh

  ./configure \
    --enable-daos-mod \
    --enable-hdf5-mod \
    --with-hdf5=/opt/aurora/25.190.0/spack/unified/0.10.1/install/linux-sles15-x86_64/oneapi-2025.2.0/hdf5-1.14.6-zkruqq7 \
    --enable-pnetcdf-mod \
    --with-pnetcdf=/opt/aurora/25.190.0/spack/unified/0.10.1/install/linux-sles15-x86_64/oneapi-2025.2.0/parallel-netcdf-1.12.3-qfkwxue \
    --with-log-path=/lus/flare/projects/Aurora_deployment/kaushik/darshan-software/logs \
    --with-jobid-env=PBS_JOBID \
    --prefix=/lus/flare/projects/Aurora_deployment/kaushik/darshan-software/install \
    'CFLAGS=-O2 -g -Wall' \
    CC=mpicc

  make install

Note:
  HDF5 and PnetCDF paths come from:
    module show hdf5
    module show parallel-netcdf

Optional permission step used in original notes:
  chmod -R 755 /lus/flare/projects/Aurora_deployment/kaushik/darshan-software/

Check config:
  /lus/flare/projects/Aurora_deployment/kaushik/darshan-software/install/bin/darshan-config --log-path

Create log directory hierarchy once:
  cd /lus/flare/projects/Aurora_deployment/kaushik/darshan-software/install/bin
  ./darshan-mk-log.pl

2. Set custom logfile (optional)

  export DARSHAN_LOGFILE=<full-path-to-darshan-logfile>

3. Quick runtime tests

Non-MPI:
  LD_PRELOAD=/path/to/libdarshan.so DARSHAN_ENABLE_NONMPI=1 cat /some/file

MPI:
  LD_PRELOAD=/path/to/libdarshan.so mpiexec ...

Example:
  touch hello.txt
  LD_PRELOAD=/lus/flare/projects/Aurora_deployment/kaushik/darshan-software/install/lib/libdarshan.so DARSHAN_ENABLE_NONMPI=1 cat hello.txt
  ls /lus/flare/projects/Aurora_deployment/kaushik/darshan-software/logs/2025/11/14/

4. darshan-util / PyDarshan tools install

  rm -rf /lus/flare/projects/Aurora_deployment/kaushik/darshan-software/darshan/
  git clone https://github.com/darshan-hpc/darshan.git
  cd darshan
  git submodule update --init
  ./prepare.sh

  cd darshan-util
  ./configure \
    --disable-darshan-runtime \
    --prefix=/lus/flare/projects/Aurora_deployment/kaushik/darshan-software/darshan-util-install \
    --enable-apmpi-mod \
    --enable-apxc-mod \
    CFLAGS='-g -O0 -Wall'

  make
  make install

List installed tools:
  ls /lus/flare/projects/Aurora_deployment/kaushik/darshan-software/darshan-util-install/bin/

5. Full preload chain

  LD_PRELOAD=/lus/flare/projects/Aurora_deployment/kaushik/darshan-software/install/lib/libdarshan.so:\
  /opt/aurora/25.190.0/spack/unified/0.10.1/install/linux-sles15-x86_64/oneapi-2025.2.0/hdf5-1.14.6-zkruqq7/lib/libhdf5.so:\
  /opt/aurora/25.190.0/spack/unified/0.10.1/install/linux-sles15-x86_64/oneapi-2025.2.0/parallel-netcdf-1.12.3-qfkwxue/lib/libpnetcdf.so:\
  /usr/lib64/libpil4dfs.so