Error Handling

On success, S3L_thread_comm_setup returns S3L_SUCCESS.

S3L_thread_comm_setup performs generic checking of the validity of the arrays it accepts as arguments. If an array argument contains an invalid or corrupted value, the function terminates and an error code indicating which value of the array handle was invalid is returned. See Appendix A of this manual for a detailed list of these error codes.

In addition, the following conditions will cause the function to terminate and return the associated error code:

• S3L_ERR_ARG_NULL - The comm argument is a NULL pointer (C/C++) or 0 (F77/F90)

• S3L_ERR_COMM_INVAL - The comm argument is not congruent to MPI_COMM_WORLD.

• S3L_ERR_THREAD_UNSAFE - The application program is using libraries that are not thread-safe.