Data Type

Integer

Units

REAL*8 (8-byte) words

Default Value

0 (Except Compaq and SGI)
1023 (Compaq: one page)
400000 (SGI; 200K complex equations)

Description

This parameter appends a guard area to each memory allocation. It is used to accommodate special matrix multiply routines, which use aggressive prefetch. The value is in units of REAL*8 (8-byte) word. For SGI, the value should be as large as the largest array processed. For FMS, this usually is the size of the R.H.S. or solution vector. The default value of 400000 provides for complex problems having 200,000 equations.

For Compaq, the default value of one page will work for all cases.

Because this parameter affects actions during FMSINI, it must be set in the License File.