FMS File Parameter IOSYNC
Data Type
Integer
Default Value
0
DESCRIPTION:
This parameter determines whether FMS performs file transfers synchronously or asynchronously. The following values are available:
- 0
Perform file transfers asynchronously. This allows data transfers to occur in parallel with processing to reduce run time.
- 1
Perform file transfers synchronously. The CPU processes are suspended while file transfers occur.
By default, FMS uses separate I/O processes running in parallel with the CPU processes to perform disk transfers. These I/O processes automatically read ahead so data is present in memory when required. After data is computed, it is turned over to the I/O processes for writing to disk so the CPU processes can continue with the solution.
This option should always be left at the default value unless you are conducting performance experiments.
Copyright © Multipath Corporation