System Options under z/OS

MEMSIZE= System Option: z/OS

Specifies the limit on the total amount of memory that can be used by a SAS session.

Default:	varies, see the following Details section
Valid in:	configuration file, SAS invocation
Category:	System Administration: MEMORY
PROC OPTIONS GROUP=	MEMORY
z/OS specifics:	all

Syntax
Details
See Also

Syntax

MEMSIZE=n | n K | n M | n G | hexX | MIN | MAX

n | n K | n M | n G

specifies total memory size in bytes (0-2,147,483,647), kilobytes (0-2,097,151), megabytes (0-2047), or gigabytes (0-2). You can specify decimal values for the number of kilobytes, megabytes, or gigabytes. For example, to specify 33,554,432 bytes, you can use 32M, 32768K, or 33554432.

hexX

specifies the memory size as a hexadecimal value. You must specify the value beginning with a number (0-9), followed by hexadecimal characters (0-9, A-F), and then followed by an X. For example, the value 2000000x sets the memory size to 32M and a value of 4000000x sets the memory size to 64M.

MIN

causes SAS to calculate the value of MEMSIZE= using the formula in the following Details section.

MAX

causes SAS to calculate the value of MEMSIZE= using the formula in the following Details section.

Details

SAS always calculates the value of the MEMSIZE option. The user-specified value is no longer used. The calculated value is the amount of available REGION space (both above and below the line) minus the value of the MEMLEAVE option. You can display the value of the MEMSIZE option to determine the calculated value.