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Floating point exception

Discussion in 'Shell Script' started by jereik, Aug 28, 2010.

  1. jereik

    jereik New Member

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    Got this error while trying to compile the code below: "Floating point exception"

    #Create a simulator object
    set ns [new Simulator]

    #Open the nam trace file
    set nf [open out.nam w]
    $ns namtrace-all $nf

    #Define a 'finish' procedure
    proc finish {} {
    global ns nf
    $ns flush-trace
    #Close the trace file
    close $nf
    #Execute nam on the trace file
    exec nam out.nam &
    exit 0
    }

    #Create two nodes
    set n0 [$ns node]
    set n1 [$ns node]
    set n2 [$ns node]
    set n3 [$ns node]

    #Create a duplex link between the nodes
    $ns duplex-link $n0 $n2 1Mb 10ms DropTail
    $ns duplex-link $n1 $n2 1Mb 10ms DropTail
    $ns duplex-link $n2 $n3 Mb 10ms DropTail

    $ns duplex-link-op $n0 $n2 orient right-down
    $ns duplex-link-op $n1 $n2 orient right-up
    $ns duplex-link-op $n2 $n3 orient right

    #Create a UDP agent and attach it to node n0
    set udp0 [new Agent/UDP]
    $ns attach-agent $n0 $udp0

    # Create a CBR traffic source and attach it to udp0
    set cbr0 [new Application/Traffic/CBR]
    $cbr0 set packetSize_ 500
    $cbr0 set interval_ 0.005
    $cbr0 attach-agent $udp0

    #Create a UDP agent and attach it to node n1
    set udp1 [new Agent/UDP]
    $ns attach-agent $n1 $udp1

    # Create a CBR traffic source and attach it to udp1
    set cbr1 [new Application/Traffic/CBR]
    $cbr1 set packetSize_ 500
    $cbr1 set interval_ 0.005
    $cbr1 attach-agent $udp1

    #Create a Null agent (a traffic sink) and attach it to node n1xt
    set null0 [new Agent/Null]
    $ns attach-agent $n3 $null0

    #Connect the traffic source with the traffic sink
    $ns connect $udp0 $null0
    $ns connect $udp1 $null0

    #Schedule events for the CBR agent
    $ns at 0.5 "$cbr0 start"
    $ns at 1.0 "$cbr1 start"
    $ns at 4.0 "$cbr1 stop"
    $ns at 4.5 "$cbr0 stop"

    #Call the finish procedure after 5 seconds of simulation time
    $ns at 5.0 "finish"

    #Run the simulation
    $ns run
    Can any1 help me with the soln pls?

    Jereik
     

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