1 | #!/bin/env python |
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2 | |
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3 | '''Testlet to run the QuadratureParallelInterleaved test.''' |
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4 | |
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5 | import os |
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6 | import time |
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7 | import test_utils as util |
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8 | |
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9 | Processor_Numbers = [1, 2, 4, 8, 16] |
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10 | |
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11 | name = 'Running quadrature parallel interleaved test' |
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12 | |
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13 | def test(logfile): |
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14 | result = True |
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15 | |
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16 | (cluster, domain) = util.get_hostname() |
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17 | |
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18 | # get python to run |
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19 | python_env_var = os.getenv('PYTHON') |
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20 | |
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21 | # compile C code |
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22 | util.log_print_nl(logfile, 'Compiling quadrature_parallel_interleaved.c:') |
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23 | obj_file = 'quadrature_parallel_interleaved' |
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24 | cmd = ('mpicc quadrature_parallel_interleaved.c -lm -o %s' % obj_file) |
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25 | util.log_print_nl(logfile, cmd) |
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26 | (_, fd) = os.popen4(cmd) |
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27 | output = fd.read() |
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28 | status = fd.close() |
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29 | if status: |
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30 | util.log_print_nl(logfile, 'ERRORS COMPILING') |
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31 | util.log_print(logfile, output) |
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32 | return False |
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33 | |
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34 | util.log_print_nl(logfile) |
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35 | |
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36 | # run the tests |
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37 | results = [] |
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38 | machines_file = os.path.join('~', '.machines_%s' % cluster) |
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39 | single_processor_time = None |
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40 | for num_procs in Processor_Numbers: |
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41 | cmd = ('mpirun -nolocal -np %2d -hostfile %s %s' |
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42 | % (num_procs, machines_file, obj_file)) |
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43 | util.log_print(logfile, cmd + ' ...') |
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44 | (_, fd) = os.popen4(cmd) |
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45 | output = fd.readlines() |
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46 | status = fd.close() |
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47 | if status: |
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48 | util.log_print_nl(logfile, 'ERRORS') |
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49 | util.log_print(logfile, '\n'.join(output)) |
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50 | return False |
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51 | |
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52 | for line in output: |
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53 | if line.startswith('Time'): |
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54 | (_, elapsed_time) = line.split(' = ', 1) |
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55 | elapsed_time = elapsed_time.strip() |
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56 | (elapsed_time, _) = elapsed_time.split(' ', 1) |
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57 | elapsed_time = float(elapsed_time) |
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58 | |
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59 | if elapsed_time is None: |
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60 | util.log_print_nl(logfile, 'ERRORS') |
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61 | util.log_print(logfile, '\n'.join(output)) |
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62 | return False |
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63 | |
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64 | results.append((num_procs, elapsed_time)) |
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65 | util.log_print_nl(logfile, 'took %.1fs' % elapsed_time) |
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66 | |
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67 | # interpret the results |
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68 | util.log_print(logfile, '\nResults of quadrature interleaved parallel test on %s\n' % cluster) |
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69 | util.log_print(logfile, '%s\t%s\t%s\t%s\n' % ('#procs', 'time', 'speedup', 'parallel efficiency')) |
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70 | |
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71 | single_processor_time = None |
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72 | for (num_processors, elapsed_time) in results: |
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73 | num_processors = int(num_processors) |
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74 | if num_processors == 1: |
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75 | single_processor_time = elapsed_time |
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76 | |
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77 | speedup = single_processor_time / elapsed_time |
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78 | parallel_efficiency = speedup / num_processors |
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79 | |
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80 | util.log_print(logfile, '%d\t%.2f\t%.2f\t%.2f\n' |
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81 | % (num_processors, elapsed_time, speedup, parallel_efficiency)) |
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82 | |
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83 | os.remove(obj_file) |
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84 | |
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85 | return result |
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86 | |
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87 | |
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88 | if __name__ == '__main__': |
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89 | import sys |
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90 | |
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91 | logfile = 'test.log' |
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92 | if len(sys.argv) > 1: |
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93 | logfile = sys.argv[1] |
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94 | |
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95 | try: |
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96 | os.remove(logfile) |
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97 | except: |
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98 | pass |
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99 | |
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100 | if not test(logfile): |
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101 | sys.exit(10) |
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102 | |
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103 | sys.exit(0) |
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