The following is a list of MPI size limits. This list includes system limits on the size of various MPI elements and the relevant environment variable or tunable parameter.
|Number of Tasks||MP_EAGER_LIMIT|
|1 to 16||4096|
|17 to 32||2048|
|33 to 64||1024|
|65 to 128||512|
|129 to 256||256|
|257 to the maximum number of tasks supported by the implementation||128|