Constants¶
MPL defines the following global constants:
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int mpl::proc_null = MPI_PROC_NULL¶
Special value that can be used instead of a rank wherever a source or a destination argument is required in a call to indicate that the communication shall have no effect.
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int mpl::undefined = MPI_UNDEFINED¶
Special value that is used to indicate an invalid return value or function parameter in some functions.
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int mpl::root = MPI_ROOT¶
Special value to indicate the root process in some inter-communicator collective operations.
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void *mpl::absolute = MPI_BOTTOM¶
Special constant to indicate the start of the address range of message buffers.
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int mpl::bsend_overhead = MPI_BSEND_OVERHEAD¶
Special constant representing an upper bound on the additional space consumed when buffering messages.
See also
communicator::bsend