Error Messages

Sun MPI error messages use a standard format:

[x y z] Error in function_name: errclass_string:intern(a):description:unixerrstring

where

• [x y z] is the process communication identifier, and:

  • x is the job id (or jid).

  • y is the name of the communicator if a name exists; otherwise it is the address of the opaque object.

  • z is the rank of the process.

    The process communication identifier is present in every error message.

• function_name is the name of the associated MPI function. It is present in every error message.

• errclass_string is the string associated with the MPI error class. It is present in every error message.

• intern is an internal function. It is optional.

• a is a system call, if one is the cause of the error. It is optional.

• description is a description of the error. It is optional.

• unixerrstring is the UNIX error string that describes system call a. It is optional.