Chris@16: // Copyright (C) 2006 Douglas Gregor <doug.gregor -at- gmail.com>
Chris@16: 
Chris@16: // Use, modification and distribution is subject to the Boost Software
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: /** @file config.hpp
Chris@16:  *
Chris@16:  *  This header provides MPI configuration details that expose the
Chris@16:  *  capabilities of the underlying MPI implementation, and provides
Chris@16:  *  auto-linking support on Windows.
Chris@16:  */
Chris@16: #ifndef BOOST_MPI_CONFIG_HPP
Chris@16: #define BOOST_MPI_CONFIG_HPP
Chris@16: 
Chris@16: /* Force MPICH not to define SEEK_SET, SEEK_CUR, and SEEK_END, which
Chris@16:    conflict with the versions in <stdio.h> and <cstdio>. */
Chris@16: #define MPICH_IGNORE_CXX_SEEK 1
Chris@16: 
Chris@16: #include <mpi.h>
Chris@16: #include <boost/config.hpp>
Chris@16: 
Chris@16: /** @brief Define this macro to avoid expensice MPI_Pack/Unpack calls on 
Chris@16:  *  homogeneous machines.
Chris@16: */
Chris@16: //#define BOOST_MPI_HOMOGENEOUS
Chris@16: 
Chris@16: // If this is an MPI-2 implementation, define configuration macros for
Chris@16: // the features we are interested in.
Chris@16: #if defined(MPI_VERSION) && MPI_VERSION >= 2
Chris@16: /** @brief Determine if the MPI implementation has support for memory
Chris@16:  *  allocation.
Chris@16:  *
Chris@16:  *  This macro will be defined when the underlying MPI implementation
Chris@16:  *  has support for the MPI-2 memory allocation routines @c
Chris@16:  *  MPI_Alloc_mem and @c MPI_Free_mem. When defined, the @c allocator
Chris@16:  *  class template will provide Standard Library-compliant access to
Chris@16:  *  these memory-allocation routines.
Chris@16:  */
Chris@16: #  define BOOST_MPI_HAS_MEMORY_ALLOCATION
Chris@16: 
Chris@16: /** @brief Determine if the MPI implementation has supports initialization 
Chris@16:  *  without command-line arguments.
Chris@16:  *
Chris@16:  *  This macro will be defined when the underlying implementation
Chris@16:  *  supports initialization of MPI without passing along command-line
Chris@16:  *  arguments, e.g., @c MPI_Init(NULL, NULL). When defined, the @c
Chris@16:  *  environment class will provide a default constructor. This macro is 
Chris@16:  *  always defined for MPI-2 implementations. */
Chris@16: #  define BOOST_MPI_HAS_NOARG_INITIALIZATION
Chris@16: #else
Chris@16: // If this is an MPI-1.x implementation, no arg initialization for
Chris@16: // mpi environement could still be available, but not mandatory.
Chris@16: // Undef this if no arg init is available:
Chris@16: //#  define BOOST_MPI_HAS_NOARG_INITIALIZATION
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(MPIAPI)
Chris@16: #  define BOOST_MPI_CALLING_CONVENTION MPIAPI
Chris@16: #else
Chris@16: /** @brief Specifies the calling convention that will be used for callbacks
Chris@16:  *  from the underlying C MPI. 
Chris@16:  *
Chris@16:  *  This is a Windows-specific macro, which will be used internally to state
Chris@16:  *  the calling convention of any function that is to be used as a callback
Chris@16:  *  from MPI. For example, the internally-defined functions that are used in
Chris@16:  *  a call to @c MPI_Op_create. This macro is likely only to be useful to
Chris@16:  *  users that wish to bypass Boost.MPI, registering their own callbacks in
Chris@16:  *  certain cases, e.g., through @c MPI_Op_create.
Chris@16:  */
Chris@16: #  define BOOST_MPI_CALLING_CONVENTION
Chris@16: #endif
Chris@16: 
Chris@16: #if defined(LAM_MPI)
Chris@16: // Configuration for LAM/MPI
Chris@16: #  define BOOST_MPI_HAS_MEMORY_ALLOCATION
Chris@16: #  define BOOST_MPI_HAS_NOARG_INITIALIZATION
Chris@16: #elif defined(MPICH_NAME)
Chris@16: // Configuration for MPICH
Chris@16: #endif
Chris@16: 
Chris@16: /*****************************************************************************
Chris@16:  *                                                                           *
Chris@16:  *  DLL import/export options                                                *  
Chris@16:  *                                                                           *
Chris@16:  *****************************************************************************/
Chris@16: 
Chris@101: #if (defined(BOOST_MPI_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_MPI_STATIC_LINK)
Chris@16: #  if defined(BOOST_MPI_SOURCE)
Chris@101: #     define BOOST_MPI_DECL BOOST_SYMBOL_EXPORT
Chris@16: #     define BOOST_MPI_BUILD_DLL
Chris@16: #  else
Chris@101: #     define BOOST_MPI_DECL BOOST_SYMBOL_IMPORT
Chris@16: #  endif
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_MPI_DECL
Chris@16: #  define BOOST_MPI_DECL
Chris@16: #endif
Chris@16: 
Chris@16: #if !defined(BOOST_MPI_NO_LIB) && !defined(BOOST_MPI_SOURCE) && !defined(BOOST_ALL_NO_LIB) && defined(__cplusplus)
Chris@16: #  define BOOST_LIB_NAME boost_mpi
Chris@16: #  if defined(BOOST_MPI_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)
Chris@16: #     define BOOST_DYN_LINK
Chris@16: #  endif
Chris@16: #  ifdef BOOST_MPI_DIAG
Chris@16: #     define BOOST_LIB_DIAGNOSTIC
Chris@16: #  endif
Chris@16: #  include <boost/config/auto_link.hpp>
Chris@16: #endif
Chris@16: 
Chris@16: #endif // BOOST_MPI_CONFIG_HPP