1 #!/usr/bin/env python 2 3 import sys 4 import random 5 6 class TimingScriptGenerator: 7 """Used to generate a bash script which will invoke the toy and time it""" 8 def __init__(self, scriptname, outputname): 9 self.timeFile = outputname 10 self.shfile = open(scriptname, 'w') 11 self.shfile.write("echo \"\" > %s\n" % self.timeFile) 12 13 def writeTimingCall(self, filename, numFuncs, funcsCalled, totalCalls): 14 """Echo some comments and invoke both versions of toy""" 15 rootname = filename 16 if '.' in filename: 17 rootname = filename[:filename.rfind('.')] 18 self.shfile.write("echo \"%s: Calls %d of %d functions, %d total\" >> %s\n" % (filename, funcsCalled, numFuncs, totalCalls, self.timeFile)) 19 self.shfile.write("echo \"\" >> %s\n" % self.timeFile) 20 self.shfile.write("echo \"With MCJIT\" >> %s\n" % self.timeFile) 21 self.shfile.write("/usr/bin/time -f \"Command %C\\n\\tuser time: %U s\\n\\tsytem time: %S s\\n\\tmax set: %M kb\"") 22 self.shfile.write(" -o %s -a " % self.timeFile) 23 self.shfile.write("./toy-mcjit < %s > %s-mcjit.out 2> %s-mcjit.err\n" % (filename, rootname, rootname)) 24 self.shfile.write("echo \"\" >> %s\n" % self.timeFile) 25 self.shfile.write("echo \"With JIT\" >> %s\n" % self.timeFile) 26 self.shfile.write("/usr/bin/time -f \"Command %C\\n\\tuser time: %U s\\n\\tsytem time: %S s\\n\\tmax set: %M kb\"") 27 self.shfile.write(" -o %s -a " % self.timeFile) 28 self.shfile.write("./toy-jit < %s > %s-jit.out 2> %s-jit.err\n" % (filename, rootname, rootname)) 29 self.shfile.write("echo \"\" >> %s\n" % self.timeFile) 30 self.shfile.write("echo \"\" >> %s\n" % self.timeFile) 31 32 class KScriptGenerator: 33 """Used to generate random Kaleidoscope code""" 34 def __init__(self, filename): 35 self.kfile = open(filename, 'w') 36 self.nextFuncNum = 1 37 self.lastFuncNum = None 38 self.callWeighting = 0.1 39 # A mapping of calls within functions with no duplicates 40 self.calledFunctionTable = {} 41 # A list of function calls which will actually be executed 42 self.calledFunctions = [] 43 # A comprehensive mapping of calls within functions 44 # used for computing the total number of calls 45 self.comprehensiveCalledFunctionTable = {} 46 self.totalCallsExecuted = 0 47 48 def updateTotalCallCount(self, callee): 49 # Count this call 50 self.totalCallsExecuted += 1 51 # Then count all the functions it calls 52 if callee in self.comprehensiveCalledFunctionTable: 53 for child in self.comprehensiveCalledFunctionTable[callee]: 54 self.updateTotalCallCount(child) 55 56 def updateFunctionCallMap(self, caller, callee): 57 """Maintains a map of functions that are called from other functions""" 58 if not caller in self.calledFunctionTable: 59 self.calledFunctionTable[caller] = [] 60 if not callee in self.calledFunctionTable[caller]: 61 self.calledFunctionTable[caller].append(callee) 62 if not caller in self.comprehensiveCalledFunctionTable: 63 self.comprehensiveCalledFunctionTable[caller] = [] 64 self.comprehensiveCalledFunctionTable[caller].append(callee) 65 66 def updateCalledFunctionList(self, callee): 67 """Maintains a list of functions that will actually be called""" 68 # Update the total call count 69 self.updateTotalCallCount(callee) 70 # If this function is already in the list, don't do anything else 71 if callee in self.calledFunctions: 72 return 73 # Add this function to the list of those that will be called. 74 self.calledFunctions.append(callee) 75 # If this function calls other functions, add them too 76 if callee in self.calledFunctionTable: 77 for subCallee in self.calledFunctionTable[callee]: 78 self.updateCalledFunctionList(subCallee) 79 80 def setCallWeighting(self, weight): 81 """ Sets the probably of generating a function call""" 82 self.callWeighting = weight 83 84 def writeln(self, line): 85 self.kfile.write(line + '\n') 86 87 def writeComment(self, comment): 88 self.writeln('# ' + comment) 89 90 def writeEmptyLine(self): 91 self.writeln("") 92 93 def writePredefinedFunctions(self): 94 self.writeComment("Define ':' for sequencing: as a low-precedence operator that ignores operands") 95 self.writeComment("and just returns the RHS.") 96 self.writeln("def binary : 1 (x y) y;") 97 self.writeEmptyLine() 98 self.writeComment("Helper functions defined within toy") 99 self.writeln("extern putchard(x);") 100 self.writeln("extern printd(d);") 101 self.writeln("extern printlf();") 102 self.writeEmptyLine() 103 self.writeComment("Print the result of a function call") 104 self.writeln("def printresult(N Result)") 105 self.writeln(" # 'result('") 106 self.writeln(" putchard(114) : putchard(101) : putchard(115) : putchard(117) : putchard(108) : putchard(116) : putchard(40) :") 107 self.writeln(" printd(N) :"); 108 self.writeln(" # ') = '") 109 self.writeln(" putchard(41) : putchard(32) : putchard(61) : putchard(32) :") 110 self.writeln(" printd(Result) :"); 111 self.writeln(" printlf();") 112 self.writeEmptyLine() 113 114 def writeRandomOperation(self, LValue, LHS, RHS): 115 shouldCallFunc = (self.lastFuncNum > 2 and random.random() < self.callWeighting) 116 if shouldCallFunc: 117 funcToCall = random.randrange(1, self.lastFuncNum - 1) 118 self.updateFunctionCallMap(self.lastFuncNum, funcToCall) 119 self.writeln(" %s = func%d(%s, %s) :" % (LValue, funcToCall, LHS, RHS)) 120 else: 121 possibleOperations = ["+", "-", "*", "/"] 122 operation = random.choice(possibleOperations) 123 if operation == "-": 124 # Don't let our intermediate value become zero 125 # This is complicated by the fact that '<' is our only comparison operator 126 self.writeln(" if %s < %s then" % (LHS, RHS)) 127 self.writeln(" %s = %s %s %s" % (LValue, LHS, operation, RHS)) 128 self.writeln(" else if %s < %s then" % (RHS, LHS)) 129 self.writeln(" %s = %s %s %s" % (LValue, LHS, operation, RHS)) 130 self.writeln(" else") 131 self.writeln(" %s = %s %s %f :" % (LValue, LHS, operation, random.uniform(1, 100))) 132 else: 133 self.writeln(" %s = %s %s %s :" % (LValue, LHS, operation, RHS)) 134 135 def getNextFuncNum(self): 136 result = self.nextFuncNum 137 self.nextFuncNum += 1 138 self.lastFuncNum = result 139 return result 140 141 def writeFunction(self, elements): 142 funcNum = self.getNextFuncNum() 143 self.writeComment("Auto-generated function number %d" % funcNum) 144 self.writeln("def func%d(X Y)" % funcNum) 145 self.writeln(" var temp1 = X,") 146 self.writeln(" temp2 = Y,") 147 self.writeln(" temp3 in") 148 # Initialize the variable names to be rotated 149 first = "temp3" 150 second = "temp1" 151 third = "temp2" 152 # Write some random operations 153 for i in range(elements): 154 self.writeRandomOperation(first, second, third) 155 # Rotate the variables 156 temp = first 157 first = second 158 second = third 159 third = temp 160 self.writeln(" " + third + ";") 161 self.writeEmptyLine() 162 163 def writeFunctionCall(self): 164 self.writeComment("Call the last function") 165 arg1 = random.uniform(1, 100) 166 arg2 = random.uniform(1, 100) 167 self.writeln("printresult(%d, func%d(%f, %f) )" % (self.lastFuncNum, self.lastFuncNum, arg1, arg2)) 168 self.writeEmptyLine() 169 self.updateCalledFunctionList(self.lastFuncNum) 170 171 def writeFinalFunctionCounts(self): 172 self.writeComment("Called %d of %d functions" % (len(self.calledFunctions), self.lastFuncNum)) 173 174 def generateKScript(filename, numFuncs, elementsPerFunc, funcsBetweenExec, callWeighting, timingScript): 175 """ Generate a random Kaleidoscope script based on the given parameters """ 176 print "Generating " + filename 177 print(" %d functions, %d elements per function, %d functions between execution" % 178 (numFuncs, elementsPerFunc, funcsBetweenExec)) 179 print(" Call weighting = %f" % callWeighting) 180 script = KScriptGenerator(filename) 181 script.setCallWeighting(callWeighting) 182 script.writeComment("===========================================================================") 183 script.writeComment("Auto-generated script") 184 script.writeComment(" %d functions, %d elements per function, %d functions between execution" 185 % (numFuncs, elementsPerFunc, funcsBetweenExec)) 186 script.writeComment(" call weighting = %f" % callWeighting) 187 script.writeComment("===========================================================================") 188 script.writeEmptyLine() 189 script.writePredefinedFunctions() 190 funcsSinceLastExec = 0 191 for i in range(numFuncs): 192 script.writeFunction(elementsPerFunc) 193 funcsSinceLastExec += 1 194 if funcsSinceLastExec == funcsBetweenExec: 195 script.writeFunctionCall() 196 funcsSinceLastExec = 0 197 # Always end with a function call 198 if funcsSinceLastExec > 0: 199 script.writeFunctionCall() 200 script.writeEmptyLine() 201 script.writeFinalFunctionCounts() 202 funcsCalled = len(script.calledFunctions) 203 print " Called %d of %d functions, %d total" % (funcsCalled, numFuncs, script.totalCallsExecuted) 204 timingScript.writeTimingCall(filename, numFuncs, funcsCalled, script.totalCallsExecuted) 205 206 # Execution begins here 207 random.seed() 208 209 timingScript = TimingScriptGenerator("time-toy.sh", "timing-data.txt") 210 211 dataSets = [(5000, 3, 50, 0.50), (5000, 10, 100, 0.10), (5000, 10, 5, 0.10), (5000, 10, 1, 0.0), 212 (1000, 3, 10, 0.50), (1000, 10, 100, 0.10), (1000, 10, 5, 0.10), (1000, 10, 1, 0.0), 213 ( 200, 3, 2, 0.50), ( 200, 10, 40, 0.10), ( 200, 10, 2, 0.10), ( 200, 10, 1, 0.0)] 214 215 # Generate the code 216 for (numFuncs, elementsPerFunc, funcsBetweenExec, callWeighting) in dataSets: 217 filename = "test-%d-%d-%d-%d.k" % (numFuncs, elementsPerFunc, funcsBetweenExec, int(callWeighting * 100)) 218 generateKScript(filename, numFuncs, elementsPerFunc, funcsBetweenExec, callWeighting, timingScript) 219 print "All done!" 220
