Dual core processor usage with NX?

[Totev]

Hi,
I'm still working with NX4 (currently waiting for the distributer for NX5) on core 2 duo intel processor and I've noticed that only one core is used by NX.
And I have a question - is NX5 optimised for dual coe processors?

 

[JohnRBaker]

You have to set an environment variable, either in the UGII_env.dat file or in your login profile. The following is from the UGG_env.dat file:

# MISCELLANEOUS
#
# This variable enables Symmetric Multi-processing (SMP) on systems
# with multiple CPU's or that support hyperthreading. Performance will
# be improved in certain Parasolid operations, such as Mass Properties,
# Booleans and silhouette generation. This option is only supported on
# HP, SUN and Windows.
#
# Set to 0 to disable SMP
# Set to 1 to enable SMP
# Unset will take the Parasolid default
UGII_SMP_ENABLE = 1
#

I hope this helps.



John R. Baker, P.E.
Product 'Evangelist'
UGS NX Product Line
SIEMENS
UGS PLM Software
Cypress, CA

http://www.siemens.com/ugs

http://www.plmworld.org/museum/

 

[Totev]

Thanks for the help. I've checked and it was already set to 1. I don't know why task manager shows 50% usage of the processors. Maybe it's normal. I hope some people using C2D processors to tell if there is something abnormal in my machine or they also see 50% usage.

 

[JohnRBaker]

I suspect that unless you're actually performing one of the operations that leverages the dual-processor archtecture that you will not see any change in the utilization of the second processor.


John R. Baker, P.E.
Product 'Evangelist'
UGS NX Product Line
SIEMENS
UGS PLM Software
Cypress, CA

http://www.siemens.com/ugs

http://www.plmworld.org/museum/

 

[JohnRBaker]

I also have an Intel Duo 2 workstation however I've never run it with SMP enabled, but I thought I would test it. I first took a model of a large and complex casting and created a COPY of the original solid body moved a short distance so that I could perform a Boolean test (one of the operations that leverage the dual-CPU archtecture). I first tested it with SMP NOT enabled and the maximum CPU Usage that I got, as indicated by the 'Windows Task Manager' tool, was 50%, as I had expected. I then enabled SMP and repeated the test only this time the CPU Usage went to a full 100%, again as I would expect it to.

So, at least with my configuration it works.

Note that I tested this with both UGS NX 4.0.4.2 and UGS NX 5.0.1.3 and got idenical results.


John R. Baker, P.E.
Product 'Evangelist'
UGS NX Product Line
SIEMENS
UGS PLM Software
Cypress, CA

http://www.siemens.com/ugs

http://www.plmworld.org/museum/