[overture] Re: 3d cgins error

Hi,  It seems estrange, I am running on a machine with 8 gigs of memory so in 
theory I shouldn't have memory problems.

jg



----- Original Message ----
From: #DOMINIC DENVER JOHN CHANDAR# <DOMI0002@xxxxxxxxxx>
To: overture@xxxxxxxxxxxxx
Sent: Monday, February 2, 2009 3:24:22 PM
Subject: [overture] Re: 3d cgins error

Hi Joel,

I too get this error when there is not enough RAM available. This
usually happens when you run a big test case like yours.
For 1.2M points, it generally uses ~ 4 GB of memory for me. 

Also, I have observed if you use all boundaries except the inflow as
"outflow BC", the solution is unstable sometimes. I don't recall when
this happens ( might be when the outer boundaries are quite close to the
body ).

Regards,
Dominic


-----Original Message-----
From: overture-bounce@xxxxxxxxxxxxx
[mailto:overture-bounce@xxxxxxxxxxxxx] On Behalf Of Joel Guerrero
Sent: Monday, February 02, 2009 10:15 PM
To: overture@xxxxxxxxxxxxx
Subject: [overture] 3d cgins error

Hi,  

I'm trying to run a moving 3d problem with cgins.  Usually using a grid
with less than a million points works fine, but when I use a grid with a
little bit more than a million points (1.2m) I'm getting this error

HEAP ERROR: Array_Data_Pointer == NULL in double* MDI_double_Allocate
(Size = 77616929)! 

I am using one inflow bc and the rest of the bc are outflow, on the
moving body I set noslip bc.  
Any idea what could be the problem?


Regards,

Joel

Other related posts: