Sun S3L Toolkit Functions

Sun S3L includes an extensive set of functions that enable Sun MPI programmers to perform a variety of auxiliary tasks, such as:

• Initializing and exiting from the S3L environment.

• Creating and destroying S3L array handles for defining parallel arrays.

• Creating and destroying S3L process grid handles for defining process grids.

• Performing operations on array elements.

• Extract information about parallel arrays and array subgrids.

• Reading a file into all or part of an S3L parallel array.

• Writing all or part of an S3L parallel array into a file.

• Printing all or part of an S3L parallel array to standard output.

• Converting ScaLAPACK descriptors into S3L array handles and S3L array handles into ScaLAPACK descriptors.

• Creating Sun MPI communicators to allow thread-safe operation of S3L functions.

• Controlling the S3L safety mechanism.