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Top Forums Shell Programming and Scripting BASH: floating point exception Post 302226832 by mapleleaves on Wednesday 20th of August 2008 03:44:43 AM
Old 08-20-2008
Thank you, cfajohnson!

To fix the problem, I

1. add the current directory to the PATH (see the script)
PATH=$PATH":$PWD"
export PATH

2. delete the "./" in the lines
# ./$commandstr
$commandstr

# ./combine tests_inputs.txt > $cbfilename
combine tests_inputs.txt > $cbfilename


3. rename the lp_solve as lpsolve

# lp_solve -time -sp secure.lp 1> $lpfilename 2>&1
lpsolve -time -sp secure.lp 1> $lpfilename 2>&1


The error "BASH: floating point exception " are outputed at the lines of
case 2 and 3.

And AutoRandom, lp_solve, lpsolve, combine are executable files compiled by myself.


The full error message:

+ ./lp_solve -time -sp secure.lp
./ExpScriptOld: line 55: 7304 Floating point exception./lp_solve -time -sp secure.lp >$lpfilename 2>&1

What is '@'?
@ is typed by myself. Sorry, just means AT.


The script is pasted here:
++++++++++++++++++++++++++++++++++++++++++++
Code:
#!/bin/bash -xv 
#This script is written for collecting time cost of lp_solve and a pruning algorithm.
#input: group_number, MAX_group_number, servicenumberforecahgroup,MAX_sn,task number,MAX_tn



# 3 loops
for ((gni=$1 ; gni<=$2 ;gni=gni+1))
do
        for ((sni=$3;sni<=$4;sni=sni+1))
        do
                for ((tni=$5;tni<=$6;tni=tni+1))
                do
                        #init commandstr
                        unset commandstr filestr
                        commandstr="AutoRandom $gni"

                        for ((ci=1;ci<=$gni;ci=ci+1))
                        do
                                commandstr="$commandstr $sni"

                        done
                        commandstr="$commandstr $tni"
                        
                        #call AutoRandom,output secure.lp, tests_inputs.txt
                        ./$commandstr
                       
                          
                        #init file name

                        unset lpfilename cbfilename
                        filestr="G_"$gni"S_"$sni"T_"$tni
                        lpfilename=lp$filestr
                        cbfilename=combine$filestr

                        echo $lpfilename $cbfilename
                        #call combine
                        ./combine tests_inputs.txt > $cbfilename
                        #grep the time cost
                      lptotalcost=` more $lpfilename | grep "solving" | sed 's/^.*(//g' | sed 's/s.*)$//g'`
                      lpParsingcost=` more $lpfilename | grep "Parsing" | sed 's/^.*input://g' | sed 's/s.*)$//g'`

                      cbtimecostL=`more $cbfilename | grep "^the.*linear" | sed 's/^.*takes//g' | sed 's/ milisecond$//g'`
                      cbtimecostA=`more $cbfilename | grep "advanced" | sed 's/^.*takes//g' | sed 's/ miliseconds$//g'`
                      

                     outputline="$filestr The cost time for LP_Parsing, LP_Total, L_Combine and A_Combine are: $lpParsingcost, $lptotalcost, $
cbtimecostL, $cbtimecostA"
                     echo $outputline >>  Data.txt


                done
        done
done

++++++++++++++++++++++++++++++++++++++++++++

[quote=cfajohnson;302225783]
What is in that script?

What line causes that error?

What is the full error message?
What is '@'?
None of the steps you describe would fix that error, unless having the additional directory in your PATH caused the script to call a different version of a command.

Last edited by mapleleaves; 08-22-2008 at 09:23 AM..
 

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