#!/bin/bash
#
#PBS -lwalltime=00:10:00
#PBS -lnodes=1:ppn=8
#PBS -W group_list=ithaca
#PBS -q ithaca_q
#PBS -A admn0000
#PBS -j oe
#
#  Start in the directory from which this job was submitted.
#
cd $PBS_O_WORKDIR
#
#  Compile the program with G++
#
#g++ -fopenmp prime_openmp.cpp
#
#  Compile the program with ICPC.
#
icpc -openmp -parallel prime_openmp.cpp
#
mv a.out prime
#
#  Run with 1, 2, 4 and 8 threads.
#
echo "Run with 1 thread."
export OMP_NUM_THREADS=1
./prime > prime_ithaca_output.txt
#
echo "Run with 2 threads."
export OMP_NUM_THREADS=2
./prime >> prime_ithaca_output.txt
#
echo "Run with 4 threads."
export OMP_NUM_THREADS=4
./prime >> prime_ithaca_output.txt
#
echo "Run with 8 threads."
export OMP_NUM_THREADS=8
./prime >> prime_ithaca_output.txt
#
#  Clean up.
#
rm prime
#
echo "Program output written to prime_ithaca_output.txt."