MPI_Register_datarep
Register functions for user-defined data representations
Synopsis
int MPI_Register_datarep(char *name,
MPI_Datarep_conversion_function *read_conv_fn,
MPI_Datarep_conversion_function *write_conv_fn,
MPI_Datarep_extent_function *extent_fn,
void *state)
Input Parameters
- name
- data representation name (string)
- read_conv_fn
- function invoked to convert from file representation to
native representation (function)
- write_conv_fn
- function invoked to convert from native representation to
file representation (function)
- extent_fn
- function invoked to get the exted of a datatype as represented
in the file (function)
- extra_state
- pointer to extra state that is passed to each of the
three functions
Notes
This function allows the user to provide routines to convert data from
an external representation, used within a file, and the native representation,
used within the CPU. There is one predefined data representation,
external32. Please consult the MPI-2 standard for details on this
function.
Location:register_datarep.c