CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > AVL FIRE

Can I use all Cores simulating with AVL?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   August 30, 2013, 09:16
Default Can I use all Cores simulating with AVL?
  #1
New Member
 
Dean Petrovski
Join Date: Aug 2013
Posts: 2
Rep Power: 0
kingoreo is on a distinguished road
Hi everyone,

I just wondered, if it is possible to use all the cores of my computer, so that the simulation would proceed faster. If it is possible, could somebody tell me, if I can adjust these new settings directly in AVL or do I have to do this with the Windows-Settings-window

Best regards

kingoreo
kingoreo is offline   Reply With Quote

Old   September 1, 2013, 21:22
Default
  #2
New Member
 
Myunghwan Kim
Join Date: Jul 2012
Posts: 29
Rep Power: 4
kimmhw is on a distinguished road
Hi,

How many cores do you have?
And you need to describe FIRE version and OS information.

Normally, MPI should speed up the calculation.
And HP-MPI library will be installed during FIRE installation.

When you click the "start calculation", "Job Setup" window will be popped up.
You can select "MPI" as simulation mode and define # of CPUs.

Very straightforward... Just try.
kimmhw is offline   Reply With Quote

Old   September 8, 2013, 13:23
Default
  #3
Member
 
amin u3fi
Join Date: Feb 2013
Posts: 58
Rep Power: 3
amin_u50 is on a distinguished road
hi...
my sys is core i5...
How many CPUs can I use for fast running?
what host name is?
thnx
amin_u50 is offline   Reply With Quote

Old   September 9, 2013, 02:42
Default
  #4
New Member
 
Myunghwan Kim
Join Date: Jul 2012
Posts: 29
Rep Power: 4
kimmhw is on a distinguished road
I don't know how many cores do you have in your system.
It depends on number of CPU cores.
kimmhw is offline   Reply With Quote

Old   September 9, 2013, 03:54
Default
  #5
Member
 
amin u3fi
Join Date: Feb 2013
Posts: 58
Rep Power: 3
amin_u50 is on a distinguished road
Hi kimwh...
my sys has 4 core...
what do you recommend for this CPUs?
thnx...
amin_u50
amin_u50 is offline   Reply With Quote

Old   September 9, 2013, 04:58
Default
  #6
New Member
 
Myunghwan Kim
Join Date: Jul 2012
Posts: 29
Rep Power: 4
kimmhw is on a distinguished road
In general, the use of detail chemistry results in long calculation time.
You can use all of cores for calculation.

And if you are using v2013, the option "clustering" or "multi-zone" for general gas phase reaction can be applied to reduce the calculation time.
kimmhw is offline   Reply With Quote

Old   September 9, 2013, 07:30
Default
  #7
Member
 
amin u3fi
Join Date: Feb 2013
Posts: 58
Rep Power: 3
amin_u50 is on a distinguished road
Hi kimmhw
when i use more than one CPUs in job setup I face this error:
mpirun: gethostbyname(amin) failed
mpirun: Line 1: Invalid hostname: amin

I don't know what I enter in the HOST name...
what should I do?

thnx
amin_u50
amin_u50 is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Specify number of cores that CFX should use. Lance CFX 14 April 1, 2014 10:43
AVL Crusie Nikolian AVL FIRE 2 July 4, 2013 03:53
New AVL FIRE Forum Opened pete Site News & Announcements 0 July 5, 2012 10:19
Which is better for CFD 4 core i7-2600 or AMD 8 core FX-8150? GregShaffer Hardware 2 January 13, 2012 06:43
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 17 August 22, 2009 03:59


All times are GMT -4. The time now is 00:51.