1 | #!/usr/bin/env python |
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2 | # Test of MPI module 'pypar' for Python |
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3 | # |
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4 | # Run as |
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5 | # python pypartest.py |
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6 | # or |
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7 | # mpirun -np 2 pypartest.py |
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8 | # (perhaps try number of processors more than 2) |
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9 | # |
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10 | # To verify bandwidth of your architecture please run pytiming (and ctiming) |
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11 | # |
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12 | # OMN, GPC FEB 2002 |
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13 | |
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14 | import os, sys |
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15 | print 'PATH:', os.getenv('PATH') |
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16 | print 'PYTHONPATH:', os.getenv('PYTHONPATH') |
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17 | print 'Version:', sys.version |
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18 | try: |
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19 | import Numeric |
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20 | except Exception, e: |
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21 | msg = 'Module Numeric must be present to run pypar: %s' %e |
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22 | raise msg |
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23 | |
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24 | |
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25 | print "Importing pypar" |
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26 | import pypar |
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27 | methods = dir(pypar) |
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28 | assert 'Abort' in methods |
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29 | assert 'Finalize' in methods |
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30 | assert 'Get_processor_name' in methods |
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31 | assert 'Wtime' in methods |
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32 | assert 'rank' in methods |
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33 | assert 'raw_receive' in methods |
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34 | assert 'raw_send' in methods |
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35 | assert 'receive' in methods |
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36 | assert 'send' in methods |
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37 | assert 'bcast' in methods |
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38 | assert 'size' in methods |
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39 | |
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40 | print "Module pypar imported OK" |
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41 | #pypar.Barrier() |
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42 | |
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43 | |
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44 | myid = pypar.rank() |
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45 | numproc = pypar.size() |
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46 | node = pypar.Get_processor_name() |
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47 | |
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48 | print "I am processor %d of %d on node %s" %(myid, numproc, node) |
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49 | pypar.Barrier() |
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50 | |
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51 | |
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52 | if numproc > 1: |
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53 | # Test simple raw communication (arrays, strings and general) |
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54 | # |
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55 | N = 17 #Number of elements |
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56 | |
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57 | if myid == 0: |
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58 | # Integer arrays |
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59 | # |
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60 | A = Numeric.array(range(N)) |
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61 | B = Numeric.zeros(N) |
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62 | pypar.raw_send(A,1) |
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63 | pypar.raw_receive(B,numproc-1) |
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64 | |
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65 | assert Numeric.allclose(A, B) |
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66 | print "Raw communication of numeric integer arrays OK" |
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67 | |
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68 | # Real arrays |
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69 | # |
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70 | A = Numeric.array(range(N)).astype('f') |
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71 | B = Numeric.zeros(N).astype('f') |
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72 | pypar.raw_send(A,1) |
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73 | pypar.raw_receive(B,numproc-1) |
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74 | |
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75 | assert Numeric.allclose(A, B) |
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76 | print "Raw communication of numeric real arrays OK" |
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77 | |
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78 | # Strings (< 256 characters) |
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79 | # |
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80 | A = "and now to something completely different !" |
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81 | B = " "*len(A) |
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82 | pypar.raw_send(A,1) |
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83 | pypar.raw_receive(B,numproc-1) |
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84 | |
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85 | assert A == B |
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86 | print "Raw communication of strings OK" |
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87 | |
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88 | # A more general structure |
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89 | # |
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90 | A = ['ABC', (1,2,3.14), {8: 'Monty'}, Numeric.array([13.45, 1.2])] |
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91 | B = [' ', (0,0,0.0), {0: ' '}, Numeric.zeros(2).astype('f')] |
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92 | pypar.raw_send(A,1) |
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93 | B = pypar.raw_receive(B,numproc-1) |
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94 | |
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95 | assert A == B |
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96 | print "Raw communication of general structures OK" |
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97 | |
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98 | else: |
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99 | # Integers |
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100 | # |
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101 | X = Numeric.zeros(N) |
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102 | pypar.raw_receive(X, myid-1) |
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103 | pypar.raw_send(X, (myid+1)%numproc) |
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104 | |
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105 | # Floats |
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106 | # |
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107 | X = Numeric.zeros(N).astype('f') |
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108 | pypar.raw_receive(X, myid-1) |
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109 | pypar.raw_send(X, (myid+1)%numproc) |
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110 | |
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111 | # Strings |
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112 | # |
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113 | X = " "*256 |
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114 | pypar.raw_receive(X, myid-1) |
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115 | pypar.raw_send(X.strip(), (myid+1)%numproc) |
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116 | |
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117 | # General |
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118 | # |
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119 | X = [' ', (0,0,0.0), {0: ' '}, Numeric.zeros(2).astype('f')] |
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120 | X = pypar.raw_receive(X, myid-1) |
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121 | pypar.raw_send(X, (myid+1)%numproc) |
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122 | |
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123 | |
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124 | # Test easy communication - without buffers (arrays, strings and general) |
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125 | # |
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126 | N = 17 #Number of elements |
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127 | |
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128 | if myid == 0: |
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129 | # Integer arrays |
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130 | # |
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131 | A = Numeric.array(range(N)) |
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132 | |
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133 | pypar.send(A,1) |
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134 | B = pypar.receive(numproc-1) |
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135 | |
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136 | |
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137 | assert Numeric.allclose(A, B) |
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138 | print "Simplified communication of numeric integer arrays OK" |
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139 | |
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140 | # Real arrays |
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141 | # |
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142 | A = Numeric.array(range(N)).astype('f') |
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143 | pypar.send(A,1) |
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144 | B=pypar.receive(numproc-1) |
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145 | |
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146 | assert Numeric.allclose(A, B) |
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147 | print "Simplified communication of numeric real arrays OK" |
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148 | |
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149 | # Strings |
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150 | # |
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151 | A = "and now to something completely different !" |
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152 | pypar.send(A,1) |
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153 | B=pypar.receive(numproc-1) |
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154 | |
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155 | assert A == B |
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156 | print "Simplified communication of strings OK" |
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157 | |
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158 | # A more general structure |
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159 | # |
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160 | A = ['ABC', (1,2,3.14), {8: 'Monty'}, Numeric.array([13.45, 1.2])] |
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161 | pypar.send(A,1) |
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162 | B = pypar.receive(numproc-1) |
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163 | |
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164 | assert A == B |
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165 | print "Simplified communication of general structures OK" |
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166 | |
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167 | else: |
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168 | # Integers |
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169 | # |
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170 | X=pypar.receive(myid-1) |
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171 | pypar.send(X, (myid+1)%numproc) |
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172 | |
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173 | # Floats |
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174 | # |
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175 | X=pypar.receive(myid-1) |
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176 | pypar.send(X, (myid+1)%numproc) |
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177 | |
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178 | # Strings |
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179 | # |
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180 | X=pypar.receive(myid-1) |
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181 | pypar.send(X, (myid+1)%numproc) |
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182 | |
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183 | # General |
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184 | # |
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185 | X = pypar.receive(myid-1) |
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186 | pypar.send(X, (myid+1)%numproc) |
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187 | |
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188 | |
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189 | # Test broadcast - with buffers (arrays, strings and general) |
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190 | # |
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191 | N = 17 #Number of elements |
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192 | |
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193 | testString = 'test' + str(myid) |
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194 | print testString |
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195 | pypar.bcast(testString, 0) |
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196 | assert testString == 'test0' |
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197 | |
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198 | testString = 'test' + str(myid) |
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199 | pypar.bcast(testString, numproc-1) |
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200 | assert testString == 'test' + str(numproc-1) |
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201 | |
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202 | if myid == 0: |
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203 | print "Broadcast communication of strings OK" |
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204 | |
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205 | testArray = myid * Numeric.array(range(N)) |
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206 | pypar.bcast(testArray, 1) |
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207 | assert Numeric.allclose(testArray, 1 * testArray) |
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208 | |
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209 | if myid == 0: |
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210 | print "Broadcast communication of numeric integer array OK" |
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211 | |
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212 | |
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213 | testArray = myid * Numeric.array(range(N)).astype('f') |
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214 | pypar.bcast(testArray, 1) |
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215 | assert Numeric.allclose(testArray, 1 * testArray) |
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216 | |
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217 | if myid == 0: |
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218 | print "Broadcast communication of numeric real array OK" |
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219 | |
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220 | testGeneral = ['ABC', myid, (1,2,3), {8: 'Monty'}, Numeric.array([13.45, 1.2])] |
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221 | |
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222 | testGeneral = pypar.bcast(testGeneral, 1) |
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223 | |
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224 | assert testGeneral == ['ABC', 1, (1,2,3), {8: 'Monty'}, Numeric.array([13.45, 1.2])] |
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225 | |
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226 | if myid == 0: |
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227 | print "Broadcast communication of general structures OK" |
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228 | |
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229 | |
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230 | |
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231 | |
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232 | |
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233 | |
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234 | |
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