def GetProdU():
pdq.Init("")
pdq.streams = pdq.CreateClosed("Production", pdq.TERM, 20.0, 20.0)
pdq.nodes = pdq.CreateNode("CPU", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("DK1", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("DK2", pdq.CEN, pdq.FCFS)
pdq.SetDemand("CPU", "Production", 0.30)
pdq.SetDemand("DK1", "Production", 0.08)
pdq.SetDemand("DK2", "Production", 0.10)
pdq.Solve(pdq.APPROX)
return (pdq.GetUtilization("CPU", "Production", pdq.TERM))
def multiserver(m, stime):
work = "reqs"
node = "bus"
x = 0.0
for i in range(1, CPUS + 1):
if (i <= m):
pdq.Init("multibus")
streams = pdq.CreateClosed(work, pdq.TERM, i, 0.0)
nodes = pdq.CreateNode(node, pdq.CEN, pdq.ISRV)
pdq.SetDemand(node, work, stime)
pdq.Solve(pdq.EXACT)
x = pdq.GetThruput(pdq.TERM, work)
sm_x[i] = x
else:
sm_x[i] = x
def mem_model(n, m):
x = 0.0
for i in range(1, n + 2):
if (i <= m):
pdq.Init("")
pdq.nodes = pdq.CreateNode("CPU", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("DK1", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("DK2", pdq.CEN, pdq.FCFS)
pdq.streams = pdq.CreateClosed("work", pdq.TERM, i, 0.0)
pdq.SetDemand("CPU", "work", 3.0)
pdq.SetDemand("DK1", "work", 4.0)
pdq.SetDemand("DK2", "work", 2.0)
pdq.Solve(pdq.EXACT)
x = pdq.GetThruput(pdq.TERM, "work")
sm_x.append(x)
else:
sm_x.append(x) # last computed value
# Create parallel centers
for k in range(Nifp):
name = "IFP%d" % k
nodes = pdq.CreateNode(name, pdq.CEN, pdq.FCFS)
for k in range(Namp):
name = "AMP%d" % k
nodes = pdq.CreateNode(name, pdq.CEN, pdq.FCFS)
for k in range(Ndsu):
name = "DSU%d" % k
nodes = pdq.CreateNode(name, pdq.CEN, pdq.FCFS)
streams = pdq.CreateClosed("query", pdq.TERM, importrs, think)
# pdq.SetGraph("query", 100) - unsupported call
for k in range(Nifp):
name = "IFP%d" % k
pdq.SetDemand(name, "query", Sifp / Nifp)
for k in range(Namp):
name = "AMP%d" % k
pdq.SetDemand(name, "query", Samp / Namp)
for k in range(Ndsu):
name = "DSU%d" % k
pdq.SetDemand(name, "query", Sdsu / Ndsu)
#---------------------------------------------------------------------
if (PRIORITY):
Ucpu_prod = GetProdU()
msg = priOn
else:
msg = noPri
#---------------------------------------------------------------------
pdq.Init(msg)
#---- Workloads ------------------------------------------------------
pdq.streams = pdq.CreateClosed("Production", pdq.TERM, 20.0, 20.0)
pdq.streams = pdq.CreateClosed("Developmnt", pdq.TERM, 15.0, 15.0)
#---- Nodes ----------------------------------------------------------
pdq.nodes = pdq.CreateNode("CPU", pdq.CEN, pdq.FCFS)
if (PRIORITY):
pdq.nodes = pdq.CreateNode("shadCPU", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("DK1", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("DK2", pdq.CEN, pdq.FCFS)
#---- Service demands at each node -----------------------------------
pdq.SetDemand("CPU", "Production", 0.30)
pop = 3.0
think = 0.1
#---- Initialize the model -------------------------------------------
# Give model a name and initialize internal PDQ variables
pdq.Init("Closed Queue")
#print "**** %s ****:" % (solve_as == pdq.EXACT ? "EXACT" : "APPROX")
#--- Define the workload and circuit type ----------------------------
pdq.streams = pdq.CreateClosed("w1", pdq.TERM, 1.0 * pop, think)
#--- Define the queueing center --------------------------------------
pdq.nodes = pdq.CreateNode("node", pdq.CEN, pdq.FCFS)
#---- Define service demand ------------------------------------------
pdq.SetDemand("node", "w1", 0.10)
pdq.Solve(pdq.APPROX)
pdq.Report()
import pdq
#---------------------------------------------------------------------
# Based on multiclass-test.c
#
# Test Exact.c lib
#
# From A.Allen Example 6.3.4, p.413
#---------------------------------------------------------------------
pdq.Init("Multiclass Test")
#---- Define the workload and circuit type ---------------------------
pdq.streams = pdq.CreateClosed("term1", pdq.TERM, 5.0, 20.0)
pdq.streams = pdq.CreateClosed("term2", pdq.TERM, 15.0, 30.0)
pdq.streams = pdq.CreateClosed("batch", pdq.BATCH, 5.0, 0.0)
#---- Define the queueing center -------------------------------------
pdq.nodes = pdq.CreateNode("node1", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("node2", pdq.CEN, pdq.FCFS)
pdq.nodes = pdq.CreateNode("node3", pdq.CEN, pdq.FCFS)
#---- Define service demand ------------------------------------------
pdq.SetDemand("node1", "term1", 0.50)
pdq.SetDemand("node1", "term2", 0.04)
pdq.SetDemand("node1", "batch", 0.06)
#----- Create per CPU cache queueing centers -------------------------
for i in range(MAXCPU):
cname = "%s%d" % (L2C, i)
nodes = pdq.CreateNode(cname, pdq.CEN, pdq.FCFS)
#----- Create CPU nodes, workloads, and demands ----------------------
(no, Wrwht) = intwt(Nrwht)
print "no %d %f Nrwht %d, Wrwht %d" % (no, no, Nrwht, Wrwht)
for i in range(no):
wname = "%s%d" % (RWHT, i)
streams = pdq.CreateClosed(wname, pdq.TERM, Nrwht, Zrwht)
cname = "%s%d" % (L2C, i)
pdq.SetDemand(cname, wname, 1.0)
pdq.SetDemand(BUS, wname, 0.0) # no bus activity
print "i %2d cname %10s nodes %2d streams %d" % (i, cname, nodes,
streams)
(no, Wrdop) = intwt(Nrdop)
print "no %d Nrdop %d, Wrdop %d" % (no, Nrdop, Wrdop)
for i in range(no):
wname = "%s%d" % (RDOP, i)
##### Model specific variables #######################################
#pop = 200.0
pop = 100.0
think = 300.0
servt = 0.63
##### Initialize the model giving it a name ##########################
pdq.Init("Time Share Computer")
pdq.SetComment("This is just a simple M/M/1 queue.")
##### Define the workload and circuit type ###########################
pdq.streams = pdq.CreateClosed("compile", pdq.TERM, pop, think)
##### Define the queueing center #####################################
pdq.nodes = pdq.CreateNode("CPU", pdq.CEN, pdq.FCFS)
##### Define service demand ##########################################
pdq.SetDemand("CPU", "compile", servt)
##### Solve the model ################################################
pdq.Solve(pdq.EXACT)
pdq.Report()
