Spack Manager Tutorial 02 18 2022

Spack-Manager Tutorial

Agenda:

1. Introduction to Spack-Manager (20 min)

• Brief Overview
• Inspirations and lessons learned from Exawind Builder
• What Developers need to know

2. Snapshot Workflow Tutorial (20 min)

• Eagle Snapshot Workflow Commands:
  1. export SCRATCH=/scratch/${USER}
  2. cd ${SCRATCH}
  3. git clone --recursive https://github.com/psakievich/spack-manager.git
  4. export SPACK_MANAGER=${SCRATCH}/spack-manager && source ${SPACK_MANAGER}/start.sh && spack-start
  5. spack manager create-env --name exawind --spec 'exawind@master+hypre %gcc'
  6. spack env activate -d ${SPACK_MANAGER}/environments/exawind
  7. spack manager develop nalu-wind@master; spack manager develop exawind@master;
  8. spack manager external --list
  9. spack manager external --latest -v gcc
  10. spack concretize -f
  11. spack install
  12. cd ${SPACK_MANAGER}/environments/exawind/nalu-wind
  13. vi unit_tests.C
  14. spack install
  15. spack cd -b nalu-wind
  16. spack build-env nalu-wind ./unittestX

3. Quick-Command Workflow Tutorial (10 min)

• List of commands on ascicigpu
  1. quick-develop -h
  2. quick-develop -d /scratch/psakiev/tutorial -s amr-wind@main+cuda cuda_arch=70
  3. spack install
  4. despacktivate
  5. quick-activate /scratch/psakiev/tutorial
  6. build-env-dive -h
  7. build-env-dive amr-wind
  8. ./amr_wind_unit_test
  9. make
  10. exit
  11. spack cd -e

4. Additional Q&A (10 min)

Other Topics:

• FAQ
• In's and outs of spack manager external
• CMake script
• How to add your own CMake flags
• How to edit spack.yaml
• What are the directories in Spack-Manager

Example CMake Script for Nalu-Wind on Eagle:

#!/bin/bash

COMPILER=gcc
TRILINOS_ROOT_DIR=/projects/exawind/exawind-snapshots/views/${COMPILER}
YAML_ROOT_DIR=/projects/exawind/exawind-snapshots/views/${COMPILER}
HYPRE_ROOT_DIR=/projects/exawind/exawind-snapshots/views/${COMPILER}

module use /projects/exawind/exawind-snapshots/modules
module load mpt exawind-${COMPILER}
which cmake
which mpirun

cmake \
  -DCMAKE_CXX_COMPILER:STRING=mpicxx \
  -DCMAKE_Fortran_COMPILER:STRING=mpif90 \
  -DTrilinos_DIR:PATH=${TRILINOS_ROOT_DIR} \
  -DYAML_DIR:PATH=${YAML_CPP_ROOT_DIR} \
  -DENABLE_HYPRE:BOOL=ON \
  -DHYPRE_DIR:PATH=${HYPRE_ROOT_DIR} \
  -DCMAKE_BUILD_TYPE:STRING=RELEASE \
  -DENABLE_DOCUMENTATION:BOOL=OFF \
  -DENABLE_TESTS:BOOL=ON \
  .. && nice make -j 16