[This is preliminary documentation and is subject to change.]

The Environment type exposes the following members.


Determine whether the MPI environment has been finalized.
Returns the rank of the "host" process, if any.
Determine whether the MPI environment has been initialized.
Returns the rank of the process (or processes) that can perform I/O via the normal language facilities. If no such rank exists, the result will be null; if every process can perform I/O, this will return the value anySource.
Determines whether the calling thread is the main MPI thread. Will return true for the thread that called the Environment constructor to initialize MPI. The main thread is particularly important when the threading mode is Funneled, because in that model only the main thread can invoke MPI routines.
Determines whether the Time value is synchronized across all MPI processes (i.e., if Time is a global value).
Returns the maximum allowed tag value for use with MPI's point-to-point operations.
Returns the name of the currently executing processor. This name does not have any specific form, but typically identifies the computere on which the proces is executing.
The level of threading support provided by the MPI library. This value describes whether and how the MPI library can be used in multi-threaded programs. The threading level is requested when the MPI library is initialized in the Environment(array<String>[]()[]%, Threading) constructor.
Returns the time, in seconds, since some arbitrary time in the past. This value is typically used for timing parallel applications.
Returns the resolution of Time, in seconds.

See Also