Data Type

Integer

Default Value

0

Description

This parameter determines whether FMS performs file transfers synchronously or asynchronously. The following options are available:

  • 0, Perform file transfers asynchronously. This allows data transfers to occur in parallel with processing to reduce runtime.
  • 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.