Digital Buffer Read.VI locks up a machine with multiple processors.

[dpatch]

We are using the DIO-32-HS card to collect data.  When I run our application, I am seeing the Digital Buffer Read.VI lock up a machine with multiple processors or hyper threading enabled.  It works fine when run on same machine with only one processor enabled and hyper threading disabled. 

The machine is a Dell Precision 670 with 2 dual core processors.  Has anyone else seen this?

[Jesse_O]

Hello,

Traditional NI-DAQ was developed for systems with a single processor.  In most instances the Traditional DAQ driver will still function on multi-core computers, however it is possible for multi-core processors to cause problems with the driver. The problems related to running Traditional DAQ on multi-processor machines should be fixed in NI-DAQmx.  DAQmx was designed for multi-threaded applications and is tested heavily on architectures that lend themselves to multi-threaded applications such as hyperthreaded and dual core machines.

Regards,

Jesse O.
Applications Engineering
National Instruments