Multiple files create/read per process

[zabiziz]

How is it possible to write/create 2048 files of 32k in size each running 16 processes simultaneously, where each process opens and reads a subset of 128 files from this total of 2048 files generated.

Please help me understand how to accomplish this with IOR.

[JulianKunkel]

How about this:
create the files with mdtest phase
$ mpiexec -np 16 mdtest -C -n 2024 -e 32k -w 32k -L -F
read the files with another mdtest phase
$ mpiexec -np 16 mdtest -E -n 128 -e 32k -w 32k -L -F -s 1
Note that these are just the first 128 files.

[zabiziz]

Thank you, Julian!
That was exactly what I needed.