Created
November 7, 2015 19:28
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gensort Partition Generator
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# -*- coding: UTF-8 -*- | |
import argparse | |
import os | |
import shlex | |
import subprocess | |
import sys | |
def main(argv): | |
chunks = 0 | |
block_size = 1000000 | |
command = "" | |
path = os.path.dirname(os.path.abspath(__file__)) | |
if sys.platform.startswith('win'): | |
command = os.path.join(path, "gensort.exe") + " -a -b%d %d partition%d" | |
elif sys.platform.startswith('linux'): | |
command = os.path.join(path, "gensort") + " -a -b%d %d partition%d" | |
parser = argparse.ArgumentParser(description='Generates partitions') | |
parser.add_argument('chunks', type=int, help='# of chunks') | |
parser.add_argument('-b', '--block', type=int, help='Block size (default:1000000)', default=block_size) | |
args = parser.parse_args() | |
chunks = args.chunks | |
block_size = args.block | |
print '%d chunks, block size %d' % (chunks, block_size) | |
for i in range(0, chunks): | |
cmd = command % (i * block_size, block_size, i + 1) | |
if sys.platform.startswith('win'): | |
cmd = cmd.encode('string_escape').replace("\\", r"\\") | |
print cmd | |
args = shlex.split(cmd) | |
p = subprocess.Popen(args, stdout=subprocess.PIPE, | |
stderr=subprocess.STDOUT, shell=False) | |
for line in p.stdout.readlines(): | |
print line, | |
retval = p.wait() | |
if __name__ == "__main__": | |
main(sys.argv) |
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