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

Operating System for Ansys 13 HPC

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

Like Tree1Likes

Reply
 
LinkBack Thread Tools Display Modes
Old   March 31, 2011, 23:56
Default Operating System for Ansys 13 HPC
  #1
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Hi ,

I am plannign to buy a new computer with 256GB ram and 48 cores.
We have got Ansys 13 recently and I m nto sure which Operating system to use.
Since not every operating system uses 256GB ram, I had couple in mind.
Please tell me d best suitable operating system for the above configuration.

Windows server 2008 Enterprise
Windows 7
HPC server windows 2008 R2

Thanks in Advance
Mak
makkks is offline   Reply With Quote

Old   April 1, 2011, 19:32
Default
  #2
sac
Member
 
Join Date: Jun 2010
Posts: 44
Rep Power: 8
sac is on a distinguished road
http://msdn.microsoft.com/en-us/libr...=vs.85%29.aspx
makkks likes this.
sac is offline   Reply With Quote

Old   April 1, 2011, 20:08
Default
  #3
Senior Member
 
sail's Avatar
 
Vieri Abolaffio
Join Date: Jul 2010
Location: Always on the move.
Posts: 308
Rep Power: 8
sail is on a distinguished road
how about linux?

and it might be worth checking which OS ansys support, and what you intend to use for jobs dispatching.
sail is offline   Reply With Quote

Old   April 3, 2011, 19:59
Default
  #4
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Thanks for the link Sac.
I am thinking to go with WIndows Server 2008 R2 Enterprise.

Sail: As of Linux, I have heard tht Fluent dosent work properly on Linux sumhow. Thanks for the reply, I will cross check with OS support team, as well.

Cheers,
MAK
makkks is offline   Reply With Quote

Old   April 3, 2011, 22:40
Default
  #5
Senior Member
 
sail's Avatar
 
Vieri Abolaffio
Join Date: Jul 2010
Location: Always on the move.
Posts: 308
Rep Power: 8
sail is on a distinguished road
Quote:
Originally Posted by makkks View Post
Thanks for the link Sac.
I am thinking to go with WIndows Server 2008 R2 Enterprise.

Sail: As of Linux, I have heard tht Fluent dosent work properly on Linux sumhow. Thanks for the reply, I will cross check with OS support team, as well.

Cheers,
MAK
on my laptop i'm running ubuntu and fluent works.

my university cluster run on centos and hundreds of users run fluent, cfx and starccm+ symulations daily.
sail is offline   Reply With Quote

Old   April 4, 2011, 04:27
Default
  #6
sac
Member
 
Join Date: Jun 2010
Posts: 44
Rep Power: 8
sac is on a distinguished road
Quote:
Originally Posted by sail View Post
on my laptop i'm running ubuntu and fluent works.

my university cluster run on centos and hundreds of users run fluent, cfx and starccm+ symulations daily.
Sail is right. FLUENT works fine on Linux.
sac is offline   Reply With Quote

Old   April 4, 2011, 18:16
Default
  #7
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Good Morning and Thanks for the reply

Whts d major differenc between Windows n Linux??...d memory windows take thts all?...coz changig d paltform wont b d right choice for newbies i guess...
Its good to know tht Linux run fine with fluent..I mite use it on my Laptop too...but not with ofc system ..u knw.

Cheerzzz
MAK
makkks is offline   Reply With Quote

Old   April 5, 2011, 07:51
Default
  #8
New Member
 
Join Date: Sep 2010
Posts: 22
Rep Power: 6
Megatron is on a distinguished road
Hi Makks,

There are lots of difference between linux and windows. It is not only with the memory but also with the processing speed and priority given to each process. Hence kindly don't under estimate Linux.

I would suggest you to install it in your personal computer. Test it out for some time and understand....

Megatron
Megatron is offline   Reply With Quote

Old   April 5, 2011, 18:09
Default
  #9
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Hi Megatron,
Thanks for the reply, actually I dont knw much bout Linux . I knw tht Windows uses a lot of memory to run its components which Linux dosent use, thts how Linux speed is more. I am not underestimating it, its just lack of knowledge on my part, my bad.
Well I wil try n load it on my PC n work on it so tht i hav better Idea wht u r trying to explain.

Cheerz
Mridul
makkks is offline   Reply With Quote

Old   June 9, 2011, 19:30
Default
  #10
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Hi guys,

As said, I bought my super computer with 48 cores and Windows server 2008 R2 day before n installed my Ansys on it. But thr seems to be some problem running it on multicore.
I tried one solution on sinle core, it ran beautifully but when i tried local parallel with more cores it was stuck at solver, just froze.
I have license for multicore use which I hav tried on my 12 core machine already and was working smoothly. But when I ran it on my new computer it is not working sumhow...
what could be the possible problem?...can SUm1 help me out in this?
Thanks In advance

Regards
MAK
makkks is offline   Reply With Quote

Old   June 9, 2011, 19:34
Default
  #11
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
to make it clear, its not Windows HPC server and its Windows Server 2008 R2 Enterprise tht I am using on this system.
makkks is offline   Reply With Quote

Old   July 5, 2011, 02:09
Default
  #12
Senior Member
 
RodriguezFatz's Avatar
 
Philipp
Join Date: Jun 2011
Location: Germany
Posts: 1,103
Rep Power: 16
RodriguezFatz will become famous soon enough
Hi guys,
Could you tell me which Linux (exactly) you use?
I tryed different Centos Versions and also newest Ubunutu. During installation of Ansys the error file /usr/ansys_inc/install.err is written which says that calling

/usr/ansys_inc/v130/aisol/.workbench -cmd /usr/ansys_inc/v130/aisol/mw/bin-amd64_linux_optimized/regsvr32 -c -nodisplay /usr/ansys_inc/v130/aisol/dll/linx64/libans.cadint.pluginfemcom.so

has gone wrong. Workbench crushes when trying to create a grid in a Fluent project.
Calling the above command 'by hand' leads to:

RegSvr32: LoadLibrary("/usr/ansys_inc/v130/aisol/dll/linx64/libans.cadint.pluginfemcom.so") failed.
GetLastError returns 0x0000007e.

Thanks for any help.
RodriguezFatz is offline   Reply With Quote

Old   August 25, 2011, 09:40
Default
  #13
New Member
 
Join Date: Feb 2011
Posts: 1
Rep Power: 0
chrisli is on a distinguished road
plug your super computer to the internet and try it again.
chrisli is offline   Reply With Quote

Old   August 25, 2011, 09:42
Default
  #14
Senior Member
 
RodriguezFatz's Avatar
 
Philipp
Join Date: Jun 2011
Location: Germany
Posts: 1,103
Rep Power: 16
RodriguezFatz will become famous soon enough
It actually was connected. I installed Windows. I guess commercial software and free linux doesn't like each other.
RodriguezFatz is offline   Reply With Quote

Old   September 1, 2011, 20:41
Default
  #15
Senior Member
 
Join Date: Nov 2009
Posts: 411
Rep Power: 10
DoHander is on a distinguished road
@makkks

Hello,

start your solution in serial; run this for 1-2 steps; after that switch to parallel. It should do the trick. I've noticed a similar problem with Fluent 6.3 and 12 ... I suspect the parallel solver doesn't properly initialize a solution when you start from scratch ...

Do
DoHander is offline   Reply With Quote

Old   September 1, 2011, 21:33
Default
  #16
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Hi DoHander,

Thanks for your reply.

I worked it out already and is working fine with all cores.
It was just few .exe which needed special permission and the settings for parallel run.
I contatced Ansys guys to fix it and thy sent me a procedure to do tht.

Thanks again,
Cheerz
Mak
makkks is offline   Reply With Quote

Old   September 1, 2011, 21:34
Default
  #17
Senior Member
 
Stuart Buckingham
Join Date: May 2010
Location: United Kingdom
Posts: 267
Rep Power: 16
stuart23 will become famous soon enough
Sorry, but if you have invested that amount of money on such an expensive machine, to me it would make sense to invest some time into installing an appropriate operating system.
Windows is not and will never be an HPC operating system. It doesn't matter what it says on the box, it is just a stripped out release of Vista with some extra basic POSIX features, eg sshd, snmp, that they deem "HPC". For a high throughput high compute and high memory demanding task like CFD, UNIX wins hands down in terms of scheduling, memory management, and internode communication.
Have a look at the TOP500 and see how many are running Windows... I have worked on a few big clusters, and have NEVER seen Windows being run. Most compute machines won't even have a GUI installed just to cut down on the overhead, let alone Windows svchost! Windows is great if you want pretty coloured buttons and a talking paperclip, but if you want performance and reliability Red Hat Enterprise is officially supported by Ansys.
Don't worry, you will not be the first (or last) person to make the mistake of installing Windows for an HPC application. Have a look at what happened when LSE installed Windows in 2008.........

Stu
stuart23 is offline   Reply With Quote

Old   September 1, 2011, 21:43
Default
  #18
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Thanks Stu for ur concern.

but i need to say that my operating system is working more than fine.
I m workign on really big problems and I m not facing a single problem.
May b you shud try it and then compare.
I am not in opposition of Red hat but Windows is friendly and colourful and give good results thn y not WIndows.


Cheerz
MAK
makkks is offline   Reply With Quote

Old   September 1, 2011, 22:08
Default
  #19
Senior Member
 
Stuart Buckingham
Join Date: May 2010
Location: United Kingdom
Posts: 267
Rep Power: 16
stuart23 will become famous soon enough
Oh well, each to their own I guess!

Where abouts in Melbourne are you anyway? Monash Uni here.
stuart23 is offline   Reply With Quote

Old   September 1, 2011, 22:13
Default
  #20
New Member
 
Mridul
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 26
Rep Power: 6
makkks is on a distinguished road
Indeed!!

Same uni but not thr anymore~~ working
makkks 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
64-bit operating system anupmaeca Hardware 6 August 22, 2011 14:50
CFX11 + Fortran compiler ? Mohan CFX 20 March 30, 2011 18:56
Which operating system for CFX is the best? Dr. Bian CFX 12 June 26, 2006 08:58
windows operating system scientist Main CFD Forum 8 November 19, 2004 04:30
Operating system for Fluent? lily FLUENT 4 August 28, 2003 10:09


All times are GMT -4. The time now is 12:49.