66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
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# python ./data/decompress.py $TORCH_HOME/ILSVRC2012-TAR/ ./data/data/ILSVRC2012
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import os, gc, sys
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from pathlib import Path
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import multiprocessing
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def execute(cmds, idx, num):
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#print ('{:03d} :: {:03d} :: {:03d}'.format(idx, num, len(cmds)))
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for i, cmd in enumerate(cmds):
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if i % num == idx:
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print ('{:03d} :: {:03d} :: {:03d}/{:03d} : {:}'.format(idx, num, i, len(cmds), cmd))
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os.system(cmd)
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def command(prefix, cmd):
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#print ('{:}{:}'.format(prefix, cmd))
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#if execute: os.system(cmd)
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return cmd
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def main(source, destination, num_process):
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assert source.exists(), '{:} does not exist'.format(source)
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assert (source/'train' ).exists(), '{:}/train does not exist'.format(source)
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assert (source/'val.tar').exists(), '{:}/val does not exist'.format(source)
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assert num_process > 0, 'invalid num_process : {:}'.format(num_process)
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source = source.resolve()
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destination = destination.resolve()
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destination.mkdir(parents=True, exist_ok=True)
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os.system('rm -rf {:}'.format(destination))
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destination.mkdir(parents=True, exist_ok=True)
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(destination/'train').mkdir(parents=True, exist_ok=True)
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subdirs = list( (source / 'train').glob('n*') )
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all_commands = []
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assert len(subdirs) == 1000, 'ILSVRC2012 should contain 1000 classes instead of {:}.'.format( len(subdirs) )
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cmd = command('', 'tar -xf {:} -C {:}'.format(source/'val.tar', destination))
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all_commands.append( cmd )
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for idx, subdir in enumerate(subdirs):
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name = subdir.name
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cmd = command('{:03d}/{:03d}-th: '.format(idx, len(subdirs)), 'tar -xf {:} -C {:}'.format(source/'train'/'{:}'.format(name), destination / 'train'))
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all_commands.append( cmd )
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#print ('Collect all commands done : {:} lines'.format( len(all_commands) ))
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for i, cmd in enumerate(all_commands):
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print(cmd)
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# os.system(cmd)
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# print ('{:03d}/{:03d} : {:}'.format(i, len(all_commands), cmd))
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# gc.collect()
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"""
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records = []
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for i in range(num_process):
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process = multiprocessing.Process(target=execute, args=(all_commands, i, num_process))
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process.start()
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records.append(process)
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for process in records:
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process.join()
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"""
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if __name__ == '__main__':
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assert len(sys.argv) == 4, 'invalid argv : {:}'.format(sys.argv)
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source, destination = Path(sys.argv[1]), Path(sys.argv[2])
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num_process = int(sys.argv[3])
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main(source, destination, num_process)
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