D03.02. FMS File Parameter IEXIST

FMS File Parameter IEXIST

Data Type

Integer

Default Value

DESCRIPTION:

This parameter determines whether FMS creates a new file or uses an existing file. The following options are available:

0
Create a new file. This is similar to the FORTRAN directive STATUS='NEW' on the OPEN statement.
1
Use an existing file. Fail with a fine not found error if the file does not exist. This is similar to the FORTRAN directive STATUS='OLD' on the OPEN statement.
2
Use an existing file if it can be found. Otherwise create a new file. This is similar to the FORTRAN directive STATUS='UNKNOWN' on the OPEN statement.

This option allows you to reopen FMS files that have been previously saved with the IFKEEP parameter.

When you reopen a file, you must supply the file attribute list that was used for the file when it was created. If the file was created in a separate job, this list must be written to and reread from a restart file.