Methods, apparatus, and products are disclosed for creating and administering communications schedules for data communications among compute nodes in a data communications network of a parallel computer that include: receiving a communications schedule specifying data communications steps in a message passing operation performed by the compute nodes in the data communications network of the parallel computer; parsing the communications schedule to identify the data communications steps; and generating a graphical representation of the communications schedule, including graphing the data communications steps for the message passing operation.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
 This invention was made with Government support under Contract No. B554331 awarded by the Department of Energy. The Government has certain rights in this invention.