DFILEMAKER(1) mpiFileUtils DFILEMAKER(1) NAME dfilemaker - generate random files SYNOPSIS dfilemaker <destination_path> DESCRIPTION dfilemaker creates a number of random directory trees with subdirectories and files of various sizes, that is useful for testing. Directory trees are created under destination_path, which must be a direc- tory. destination_path Directory under which the new directory tree will be created. OPTIONS -d, --depth=*min*-*max* Specify the depth of the file system tree to generate. The depth will be selected at random within the bounds of min and max. The de- fault depth is set to 10 min, 20 max. -f, --fill=*type* Specify the fill pattern of the file. Current options available are: random, true, false, and alternate. random will fill the file using urandom(4). true will fill the file with a 0xFF pattern. false will fill the file with a 0x00 pattern. alternate will fill the file with a 0xAA pattern. The default fill is random. -i, --seed=*integer* Specify the seed to use for random number generation. This can be used to create reproducible test runs. The default is to generate a random seed. -s, --size=*min*-*max* Specify the file sizes to generate. The file size will be chosen at random random within the bounds of min and max. The default file size is set from 1MB to 5MB. -h, --help Print a brief message listing the dfilemaker(1) options and usage. -v, --version Print version information and exit. SEE ALSO The mpiFileUtils source code and all documentation may be downloaded from <https://github.com/hpc/mpifileutils> AUTHOR HPC COPYRIGHT 2022, LLNL/LANL/UT-Battelle/DDN 0.12 Jan 29, 2025 DFILEMAKER(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | AUTHOR | COPYRIGHT
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