UChicago-Midway2¶

Midway2 is the HPC cluster of the University of Chicago, maintained by UChicago’s RCC.

$ ssh <username>@midway2.rcc.uchicago.edu

Building WEST¶

WEST executables can be compiled using the following script (tested on June 23, 2022):

$ cat build_west.sh
#!/bin/bash

module load intel/19.1.1
module load intelmpi/2019.up7+intel-19.1.1
module load mkl/2020.up1
module load python/cpython-3.8.5

export MPIF90=mpiifort
export F90=ifort
export CC=icc
export SCALAPACK_LIBS="-lmkl_scalapack_lp64 -Wl,--start-group -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -lmkl_blacs_intelmpi_lp64 -Wl,--end-group"

./configure --with-scalapack=intel --enable-openmp
make -j 8 pw

cd West
make conf PYT=python3 PYT_LDFLAGS="`python3-config --ldflags --embed`"
sed -i 's/-L.*config-3.8-x86_64-linux-gnu //' west_make.inc
make -j 8 all

To use the script do:

$ bash build_west.sh

Running WEST Jobs¶

The following is an example executable script run_west.sh to run the wstat.x WEST executable on two nodes of Midway2 with 32 MPI ranks per node. The <project_name> and <account_name> must be replaced with an active project allocation.

$ cat run_west.sh
#!/bin/bash
#SBATCH --time=00:20:00
#SBATCH --partition=<partition_name>
#SBATCH --account=<account_name>
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=48
#SBATCH --cpus-per-task=1

module load intel/19.1.1
module load intelmpi/2019.up7+intel-19.1.1
module load mkl/2020.up1
module load python/cpython-3.8.5

export I_MPI_PMI_LIBRARY=/software/slurm-current-$DISTARCH/lib/libpmi.so
export LD_LIBRARY_PATH=/software/python-3.8.5-el7-x86_64/lib:$LD_LIBRARY_PATH
export OMP_NUM_THREADS=1

srun -n 96 -N 2 ./wstat.x -i wstat.in > wstat.out

Job submission is done with the following:

$ sbatch run_west.sh