LEAVE=

LEAVE=

Specifies the bytes of memory to leave unallocated

Default: 0

Valid in: configuration file, SAS invocation, OPTIONS statement, OPTIONS window

CMS specifics: all

Syntax
Details
See Also

Syntax

LEAVE=MIN | MAX | n | nK | nM | nG | hexX

MIN: specifies the minimum number of bytes (0)
MAX: specifies the maximum number of bytes (2,147,483,647)
n: specifies an integer number of bytes
nK: specifies a number of kilobytes (1 kilobyte = 1,024 bytes)
nM: specifies a number of megabytes (1 megabyte = 1,048,576 bytes)
nG: specifies a number of gigabytes (1 gigabyte = 1,073,741,824 bytes)
hexX: specifies a number of bytes in hexadecimal notation

Details

The LEAVE= system option prevents SAS from allocating a portion of your USER memory region, which is reserved for concurrent execution of external programs and for operating environment cleanup in the event of an abnormal termination of SAS. External programs could include a sort package, an X command, or a REXX exec invoked from the SAS interface to REXX, for example.

If the value of MEMSIZE= is greater than your entire memory allocation, and if LEAVE=0, SAS can allocate the entire region, leaving no room to execute concurrent programs. Specifying a nonzero value for LEAVE= ensures that the specified amount of memory will always be reserved, regardless of the size of your memory allocation or the value of MEMSIZE=.

The amount of memory reserved with LEAVE= depends on the amount of memory required to run concurrent external programs.

See Also

MEMSIZE=

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Default:	0
Valid in:	configuration file, SAS invocation, OPTIONS statement, OPTIONS window
CMS specifics:	all