dd_info: Info Functions
In pbdMPI: Programming with Big Data -- Interface to MPI

Description Usage Arguments Details Value Author(s) References Examples

The functions call MPI info functions.

info.create(info = .pbd_env$SPMD.CT$info)
info.set(info = .pbd_env$SPMD.CT$info, key, value)
info.free(info = .pbd_env$SPMD.CT$info)
info.c2f(info = .pbd_env$SPMD.CT$info)

`info`	a info number.
`key`	a character string to be set.
`value`	a character string to be set associate with `key`.

These functions are for internal functions. Potentially, they set info for initialization of master and workers.

An invisible state of MPI call is returned.

Wei-Chen Chen wccsnow@gmail.com, George Ostrouchov, Drew Schmidt, Pragneshkumar Patel, and Hao Yu.

Programming with Big Data in R Website: https://pbdr.org/

## Not run: 
### Save code in a file "demo.r" and run with 2 processors by
### SHELL> mpiexec -np 2 Rscript demo.r

spmd.code <- "
### Initial.
suppressMessages(library(pbdMPI, quietly = TRUE))
init()
.comm.size <- comm.size()
.comm.rank <- comm.rank()

### Examples.
info.create(0L)
info.set(0L, \"file\", \"appschema\")
info.free(0L)

### Finish.
finalize()
"
# execmpi(spmd.code, nranks = 2L)

## End(Not run)