Parallel file I/O using the MPI library file I/O with independent file access (any process may access the data without waiting for others).
The following pseudo-code shows the process for writing data.
filename = "file.mpiio"
open_file_with_independent_access(filename)
write_data_to_file(data, filename)
close_file(filename)
The process is reversed when reading data from file, as follows.
filename = "file.mpiio"
open_file_with_independent_access(filename)
read_data_from_file(data, filename)
close_file(filename)