×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Using 50% of cpu in Ansys15!!

Using 50% of cpu in Ansys15!!

Using 50% of cpu in Ansys15!!

(OP)
Dear Friends,
I have installed Ansys 15 on my system although i have Ansys13 too. It doesn't have any problem in analysis but it doen't use the maximum capacity of my cpu (at most 50% although my ansys 13 has been used 100%)
I changed cpu number to 8 in settings but the problem remains.
I want to know if the problem is because of license as someone told me so!
It should be notified that my system has a core i7 Q720 cpu with 4Gb of ram on 64bit Win7.

Kind Regards

RE: Using 50% of cpu in Ansys15!!

I dont know what was ANSYS's policy in R13, but now they charge you in the license per core.
In order to use more than 2 cores, you need to purchase a HPC pack, maybe this was not the policy in R13, I dont know.

RE: Using 50% of cpu in Ansys15!!

(OP)
Thanks assafwei but i think i have that license!
When in Workbench i go to tools> license preferences... i can see the list which in HPC menu contains:
ANSYS HPC Pack = 1
ANSYS HPC = 1
ANSYS CFD HPC =1
ANSYS Mechanical HPC = 1
.
.
.
So What do you think?

RE: Using 50% of cpu in Ansys15!!

I see your CPU has 4 cores, are you using hyperthreading?
This shouldnt be the reason, but I would try and remove hyperthreading.

RE: Using 50% of cpu in Ansys15!!

(OP)
Great!
Why should i disable it? and if i do so, Why i bought i7 cpu?
as far as i know, HyperThreading essentially allows a CPU to work on multiple streams of data simultaneously to improving performance and efficiency (at least 20%).
The important note is that i hadn't such problem with Ansys13 and with ansys15, the analysis time tangibly increased.
Thanks a lot.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources