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Add default constructor to environment class

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[SVN r36384]
This commit is contained in:
Douglas Gregor
2006-12-14 13:53:12 +00:00
parent 37f6a57567
commit ee308ec168
5 changed files with 45 additions and 1 deletions
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11
include/boost/mpi/config.hpp
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@@ -27,11 +27,22 @@
* these memory-allocation routines.
*/
# define BOOST_MPI_HAS_MEMORY_ALLOCATION
/** @brief Determine if the MPI implementation has supports initialization
* without command-line arguments.
*
* This macro will be defined when the underlying implementation
* supports initialization of MPI without passing along command-line
* arguments, e.g., @c MPI_Init(NULL, NULL). When defined, the @c
* environment class will provide a default constructor. This macro is
* always defined for MPI-2 implementations. */
# define BOOST_MPI_HAS_NOARG_INITIALIZATION
#endif
#if defined(LAM_MPI)
// Configuration for LAM/MPI
# define BOOST_MPI_HAS_MEMORY_ALLOCATION
# define BOOST_MPI_HAS_NOARG_INITIALIZATION
#elif defined(MPICH_NAME)
// Configuration for MPICH
#endif

18
include/boost/mpi/environment.hpp
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@@ -16,6 +16,7 @@
#include <boost/noncopyable.hpp>
#include <boost/optional.hpp>
#include <string>
#include <boost/parallel/mpi/config.hpp>
namespace boost { namespace parallel { namespace mpi {
@@ -46,6 +47,23 @@ namespace boost { namespace parallel { namespace mpi {
*/
class environment : noncopyable {
public:
#ifdef BOOST_MPI_HAS_NOARG_INITIALIZATION
/** Initialize the MPI environment.
*
* If the MPI environment has not already been initialized,
* initializes MPI with a call to @c MPI_Init. Since this
* constructor does not take command-line arguments (@c argc and @c
* argv), it is only available when the underlying MPI
* implementation supports calling @c MPI_Init with @c NULL
* arguments, indicated by the macro @c
* BOOST_MPI_HAS_NOARG_INITIALIZATION.
*
* @param abort_on_exception When true, this object will abort the
* program if it is destructed due to an uncaught exception.
*/
explicit environment(bool abort_on_exception = true);
#endif
/** Initialize the MPI environment.
*
* If the MPI environment has not already been initialized,