Get Configures Used at Compiling Time {pbdMPI}

Functions to Get MPI and/or pbdMPI Configures Used at Compiling Time

Description

These functions are designed to get MPI and/or pbdMPI configures that were usually needed at the time of pbdMPI installation. In particular, to configure, link, and compile with 'libmpi*.so' or so.

Usage

get.conf(arg, arch = '', package = "pbdMPI", return = FALSE)
get.lib(arg, arch, package = "pbdPROF")
get.sysenv(flag)

Arguments

arg

an argument to be searched in the configuration file

arch

system architecture

package

pakge name

return

to return (or print if FALSE) the search results or not

flag

a system flag that is typically used in windows environment set.

Details

get.conf() and get.lib() are typically used by 'pbd*/configure.ac', 'pbd*/src/Makevars.in', and/or 'pbd*/src/Makevar.win' to find the default configurations from 'pbd*/etc${R_ARCH}/Makconf'.

get.sysenv() is only called by 'pbdMPI/src/Makevars.win' to obtain possible MPI dynamic/static library from the environment variable 'MPI_ROOT' preset by users.

Value

Typically, there are no return values, but the values are cat() to scrrn or stdin.

Author(s)

Wei-Chen Chen [e-mail], George Ostrouchov, Drew Schmidt, Pragneshkumar Patel, and Hao Yu.

References

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

Examples

## Not run: 
library(pbdMPI)
if(Sys.info()["sysname"] != "Windows"){
  get.conf("MPI_INCLUDE_PATH"); cat("\n")
  get.conf("MPI_LIBPATH"); cat("\n")
  get.conf("MPI_LIBNAME"); cat("\n")
  get.conf("MPI_LIBS"); cat("\n")
} else{
  get.conf("MPI_INCLUDE", "/i386"); cat("\n")
  get.conf("MPI_LIB", "/i386"); cat("\n")

  get.conf("MPI_INCLUDE", "/x64"); cat("\n")
  get.conf("MPI_LIB", "/x64"); cat("\n")
}

## End(Not run)