# This is a comment which is completely ignored.
# A line beginning #pragma text... defines an lqns pragma (see lqns \
# man page or type lqns ?
# The last line has a continuation (\)

# Ecommerce system

# control variables may be optionally defined here. These expressions
#   set the default values
# $convergence_limit = .00001  #(real)
# $iteration_limit = 100       #(integer)
# $print_interval = 1	     #(integer)
# $coefficient_of_variation = 0.9	# (real) (should be named under_relaxation)

# execution control
# $solver = lqns (analytic)  OR parasrvn (simulation) OR petrisrvn
# (petri-net, needs GreatSPN2.0 tool from Genoa)
# options for simulation: 
# parasrvn -A time/block, %-accuracy-at-95%-confidence, transient-time-to-skip
# e.g. parasrvn -A 1000,1,50
# $hosts = suntan, sunset, sunspot, sunrise.... hosts to run
#   experiments round-robin (you maust have auto rlogin)

# Parameter settings $name = value OR $name = v1, v2, v3... 
# OR $name =  v1 v2 v3  OR $name = start-value:end-value , step-value. 
# Values are numeric.

#values are betwee 0.1 and 3 times the parameters given in a base model 

$case = [1:100,10]
$case, $nusers = floor(100*(0.1 + 2.9*rand()))
$case, $userThink = 1000*(0.1 + 2.9*rand())
$case, $dem_order = 25*(0.1 + 2.9*rand())
$case, $req_browse_read = 7.3*(0.1 + 2.9*rand())
$case, $order_rate = 0.09*(0.1 + 2.9*rand())
$browse_rate = 1 - $order_rate


# The rest of the file has exactly the same syntax as the orginal
# lqns/srvn model file syntax except that the values of the named parameters
# defined above may be used in place of hard-coded values.

G "..." 0.01 100 1 0.9 -1

# Processor Information: No of processors
P 0
# Processor parameters, ending with optional observation of throughput
#            of form:   %u $obs-name 
#p ProcessorName SchedDiscipline [multiplicity, default = 1]
#	Discipline = f fifo|r random|p premptive|
#			h hol or non-pre-empt|s proc-sharing
#	multiplicity = m value (multiprocessor)|i (infinite)
p PUsers f i  
p PImgDisk f 
p PWebServer s
#p PImgDisk f
p PStore s m 3
p PDBs s
p PFileServer s
# End of Processor Information
-1

# Task Information: No of Tasks
T 0
# Task parameters, with optional observation controls at end of line
#  of form: %u0 $varname..... total task utilization
#           %u2 $varname..... phase 2 utilization (any phase after u)
#           %f  $varname..... throughput
#           %pu $varname..... processor utilization of the task
#t TaskName RefFlag EntryList -1 Processor [multiplicity]
#	RefFlag = r (reference or user)|n (other)
#	multiplicity = m value (multiprocessor)|i (infinite)
t TUsers r EUserBeh -1 PUsers m $nusers 
t TWebServer n EAccess -1 PWebServer m 150
t TImgDisk n ERdImg -1 PImgDisk
t TStoreApp n EBrowse EOrder -1 PStore m 90
t TCart n EBuy -1 PStore m 10
t TInvDB n EInvRd EInvUpd -1 PDBs m 7
t TCustDB n ECustRd ECustUpd -1 PDBs
t TFS n EFRd EFWrite -1 PFileServer m 10
# End of Task Information
-1

#Entry Information: No. of Entries
E 0
# Entry parameters, with observation controls at end of line
# of form %<key><phase> $obs-name
# ParameterToken EntryName Phase1value Phase2 Phase3 -1
# Tokens and Value Definitions are:
# a External arrival rate of requests
#	%w $varname..... waiting time of requests at the entry.
# s HostServiceRequests for EntryName
#	%u0 $varname..... total utilization of the entry
#	%u2 $varname..... utiliation of phase 2 (any phase)
#	%f  $varname..... throughput of the entry
#	%pu $varname..... processor utilization of the entry
#	%s2 $varname..... total phase 2 service time of the entry (any phase)
#	%v  $varname..... coefficient of variation of the service time
#of phase 2 (or any phase in place of 2)
#	%fb $varname..... throughput bound calculated by lqns
#	%pw $varname..... processor waiting for execution in this entry
# c HostServiceCoeeficientofVariation
# f PhaseTypeFlag (0 for stochastic, 1 for deterministic no of calls)
# These lines go Token FromEntry ToEntry Phase1Value Phase2 Phase3 -1
# Tokens and Value definitions are:
# F ProbForwarding (forward to this entry rather than replying)
# z AsynchronousCalls (or no. of sned-no-reply messages)
# o Fanout (for replicated servers)
# i FanIn (for replicated servers)
# y SynchronousCalls (no. of rendezvous)
#	%w2 $varname.... waiting for service by a message sent to ToEntry
s EUserBeh $userThink -1 %fb $MaxUserThru
s EAccess 2 -1
s ERdImg 1 -1
s EBrowse 15 -1
s EOrder $dem_order -1
s EBuy 30 -1
s EInvRd 2 -1
s EInvUpd 1 10 -1
s ECustRd 3 -1
s ECustUpd 1 5 -1
s EFRd 3 -1
s EFWrite 1 3 -1
y EUserBeh EAccess 1 -1
y EAccess ERdImg 15 -1
y EAccess EBrowse $browse_rate -1
y EAccess EOrder $order_rate -1
y EBrowse EInvRd $req_browse_read -1
y EOrder EBuy 1 -1
y EBuy EInvRd 3 -1
y EBuy EInvUpd 1 -1
y EInvRd EFRd 1.8 -1
y EInvUpd EFRd 1 -1
y EInvUpd EFWrite 0 2.5 -1
y ECustRd EFRd 4 -1
y ECustUpd EFRd 1 -1
y ECustUpd EFWrite 0 2 -1
z EBuy ECustUpd 1 -1
#End of Entry Information
-1


# The next section provides the observation information to be reported.
# It is a list of parameter names and observation varicable names,
# and expressions in these variables, with names for the expressions
# for which values will be printed in tabular format or plotted.
# $0 = variable defines a variable to be printed first and to be used
# as the independent variable for plots. 
# Plotting is a command line option -F gnu, (for gnuplot) or -F mat
# (for matlab)

R 0
$0 = $case
$nusers
$userThink
$dem_order
$order_rate
$req_browse_read
$MaxUserThru
$MinURT = $nusers/$MaxUserThru - $userThink
-1