CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

CFX 5.6 memory problem with solver

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 29, 2004, 06:23
Default CFX 5.6 memory problem with solver
  #1
sreevisakh
Guest
 
Posts: n/a
I was analysing a problem contains poros medium with total domain length of 3.45 meters. i came across this error. i request your suggestions to get over this problem

| | *** INSUFFICIENT MEMORY ALLOCATED *** | | | | Action required : Increase the integer stack memory size. | | | | If the situation persists please contact the CFX Customer Helpline | | giving the following details:- | | | | Requested space: 4521354 words | | | | Current allocated space: 6578507 words | | Current used space: 5203829 words | | Current free space: 1374678 words | | Number of free areas: 1 | | | +--------------------------------------------------------------------+

Details of error:- ---------------- Error detected by routine MAKDAT CDANAM = LCON CDTYPE = INTR ISIZE = 4521354 CRESLT = FULL

+--------------------------------------------------------------------+ | Writing crash recovery file | +--------------------------------------------------------------------+

Details of error:- ---------------- Error detected by routine POPDIR CRESLT = ILEG

+--------------------------------------------------------------------+ | An error has occurred in cfx5solve: | | | | The CFX-5 solver exited with return code 1. No results file has | | been created. | +--------------------------------------------------------------------+

End of solution stage.

################################################

The memory allocated is as follows:-

+--------------------------------------------------------------------+ | Memory Allocated for Run (Actual usage may be less) | +--------------------------------------------------------------------+

Data Type Kwords Words/Node Words/Elem Kbytes Bytes/Node

Real 17602.0 616.77 146.26 68757.7 2467.08 Integer 6578.5 230.51 54.66 25697.3 922.04 Character 1473.0 51.61 12.24 1438.5 51.61 Logical 48.0 1.68 0.40 187.5 6.73 Double 515.6 18.07 4.28 4028.1 144.53

################################################## ##

I tried to increare the integer stack memory upto 1.9x randomly starting from 1.2x. my system configaration is p 4, 1.8 GHz, 526 Mb RAM

plz send ur suggestions.
  Reply With Quote

Old   January 29, 2004, 10:55
Default a problem on convergence in stage interface
  #2
feng
Guest
 
Posts: n/a
Hello,I meet a convergence problem in rotor-stator- interaction calculation,the interface is stage model,i can not get a convergent result.but i have used frozen rotor model to calculate,i can get a good result whose maximum residuals are less than 1e-5(the chosen turbulent model is k-w ,SST model). who has some ideas to solve my problem?

thank you

feng
  Reply With Quote

Old   February 1, 2004, 16:51
Default Re: CFX 5.6 memory problem with solver
  #3
Glenn Horrocks
Guest
 
Posts: n/a
Hi Sreevisakh,

Why not just increasing the integer memory until it works? Why did you stop at 1.9x? Hopefully it will work before you run out of memory.

Glenn
  Reply With Quote

Old   February 2, 2004, 04:57
Default Re: CFX 5.6 memory problem with solver
  #4
sreevisakh
Guest
 
Posts: n/a
Hi Glenn, Thanxz to u to pay attension for my problem and ur suggestions. I re-wrote the PRE to another fashion in designing the total domains by splitting it into 7. Previously it was a single domain which I made by the union of different meshes. now i separately defined it. now it is working properly at 1.2x. Once again thankz to u. Sreevisakh
  Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ansys 13 CFX problem on LInux Opensuse 11.4 serendipity CFX 10 August 7, 2012 03:24
Working directory via command line Luiz CFX 4 March 6, 2011 20:02
why the solver reject it? Anyone with experience? bearcat CFX 6 April 28, 2008 14:08
CFX CPU time & real time Nick Strantzias CFX 8 July 23, 2006 17:50
Variables Definition in CFX Solver 5.6 R P CFX 2 October 26, 2004 02:13


All times are GMT -4. The time now is 17:26.