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#!/bin/sh
#* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *#
#* *#
#* This file is part of the class library *#
#* SoPlex --- the Sequential object-oriented simPlex. *#
#* *#
#* Copyright (c) 1996-2025 Zuse Institute Berlin (ZIB) *#
#* *#
#* Licensed under the Apache License, Version 2.0 (the "License"); *#
#* you may not use this file except in compliance with the License. *#
#* You may obtain a copy of the License at *#
#* *#
#* http://www.apache.org/licenses/LICENSE-2.0 *#
#* *#
#* Unless required by applicable law or agreed to in writing, software *#
#* distributed under the License is distributed on an "AS IS" BASIS, *#
#* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *#
#* See the License for the specific language governing permissions and *#
#* limitations under the License. *#
#* *#
#* You should have received a copy of the Apache-2.0 license *#
#* along with SoPlex; see the file LICENSE. If not email soplex@zib.de. *#
#* *#
#* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *#
#
# Shell script for generating .solu file from a .test file using CPLEX and perplex.
#
# .test file may be generated by editing the output of the following command:
# ls -1 --color=never --indicator-style=none -d LP/kennington/*
#
if [ $# -ne 1 ]
then
echo "usage: ${0} <instance-file>"
exit 0
fi
INSTANCE_LIST="${1}"
PERPLEX_LOG="${INSTANCE_LIST}.perplex"
CPLEX_LOG="${INSTANCE_LIST}.cplex"
BASIS_DIR=basis
ERROR=0
# Checks for sanity.
if (test -z $(which cplex 2> /dev/null))
then
echo "CPLEX not found"
ERROR=1
fi
if (test -z $(which perplex 2> /dev/null))
then
echo "perplex not found"
ERROR=1
fi
if !(test -e "${INSTANCE_LIST}")
then
echo "file ${INSTANCE_LIST} not found"
ERROR=1
fi
if (test "${ERROR}" -gt 0)
then
exit 1
fi
#
# Main part.
#
rm -f "${PERPLEX_LOG}" "${CPLEX_LOG}"
mkdir -p basis
# CPLEX and perplex loop
for file in $(cat "${INSTANCE_LIST}");
do
# Setup CPLEX batch file depending on file format.
format_known=1
case "${file}" in
*.mps) # MPS format
ext="mps"
;;
*.mps.gz) # gzipped MPS format
ext="mps.gz"
;;
*.lp) # LP format
ext="lp"
;;
*.lp.gz) # gzipped LP format
ext="lp.gz"
;;
*) # unknown format
format_known=0
;;
esac
if [ "${format_known}" -gt 0 ]; then
base=$(basename "${file}" ".${ext}")
# Solve using CPLEX.
cplex <<-EOF
set logfile ${CPLEX_LOG}
set simplex tol feas 1e-9
set simplex tol opt 1e-9
r ${file}
change problem lp
opt
w work.bas
quit
EOF
# Name the .bas file correctly, run perplex and write everything to
# logfile for later evaluation.
echo "@01 ${file} ===========" >> "${PERPLEX_LOG}"
if [ -e work.bas ]; then
echo "work.bas -> ${base}.bas.gz"
mv -f work.bas "${BASIS_DIR}/${base}.bas"
rm -f "${BASIS_DIR}/${base}.bas.gz"
gzip "${BASIS_DIR}/${base}.bas"
if ( test "${ext}" == "lp" ) || ( test "${ext}" == "lp.gz" )
then
cplex <<-EOF
r "${file}"
w "${base}.mps.gz"
quit
EOF
file="${base}.mps.gz"
fi
perplex "${file}" "${BASIS_DIR}/${base}.bas.gz" | tee -a "${PERPLEX_LOG}"
if ( test "${ext}" == "lp" ) || ( test "${ext}" == "lp.gz" )
then
rm -f "${file}"
fi
else
echo "some error in CPLEX run" >> "${PERPLEX_LOG}"
fi
fi
done
# Evaluate perplex log via awk script.
base=$(basename "${INSTANCE_LIST}" .test)
awk -f make_solu_file.awk "${INSTANCE_LIST}.cplex" "${INSTANCE_LIST}.perplex" | tee "${base}.solu"
exit
|
