[CIG-SHORT] No output

[Charles Williams]

Hi Birendra,

Initially, I thought I had the same problem you did when running on my Linux machine.  I think discovered that I had misspelled the name of the .cfg file (I typed test.cft rather than test.cfg).  Once I did it correctly, everything seemed to work correctly on the Linux machine as well.  I'm not sure if this could be your problem or not.

Cheers,
Charles



On 14/03/2012, at 12:07 PM, Brad Aagaard wrote:

> Birendra,
> 
> I get vtk files in my output directory with the solution and state 
> variables. The displacements are nonzero (~200m of vertical motion). You 
> can check your solution and initial stress state using the solution. If 
> the stresses match, then the displacements should be zero.
> 
> Regards,
> Brad
> 
> 
> On 03/13/2012 04:01 PM, Birendra jha wrote:
>> Dear Brad, Charles,
>> 
>> I clearly forgot to include the output directory in the zip file. But I have that on my computer so that's not the issue.
>> I will try to reduce the length of the spatialdb files. Yes, it doesn't make sense to have 1 m resolution in spatialdb files when the grid cels are 100s of m. I may not be able to change to a tetrahedral grid but I'll try.
>> 
>> Granted all that, I am sure it runs in few minutes. Are you able to see the vtk files in output folder? Are the displacements zero?
>> 
>> I have run the same problem with constant density (just 1 line in density spatialdb and 2 lines in initial stress spatialdb) and get the desired result of zero displacement. Now I just want to see it with depth varying density. As you can probably imagine, I have density file for each of the 33 regions. I have their respective initial stress files too.
>> 
>> regards
>> Birendra
>> 
>> --- On Wed, 3/14/12, Brad Aagaard<baagaard at usgs.gov>  wrote:
>> 
>>> From: Brad Aagaard<baagaard at usgs.gov>
>>> Subject: Re: No output
>>> To: "Birendra jha"<bjha7333 at yahoo.com>
>>> Cc: cig-short at geodynamics.org
>>> Date: Wednesday, March 14, 2012, 4:17 AM
>>> Birenda,
>>> 
>>> I was able to run your test.cfg file after creating the
>>> output directory (as Charles noted), but initializing the
>>> integrators is taking a rather long time. Your spatial
>>> databases that describe the variation in physical properties
>>> are quite large. For every quadrature point in every cell
>>> PyLith has to find which points to use for the
>>> interpolation. Using a cloud of points with a much finer
>>> spacing than the size of the cell will cause PyLith to run
>>> much slower than necessary.
>>> 
>>> The solution did converge, but when I looked at your mesh I
>>> see some cells that have very poor aspect ratios so the
>>> solution may not be very accurate. See the PyLith Wiki (http://www.geodynamics.org/cig/community/workinggroups/short/workarea/pylith-wiki/index_html)
>>> for hints on checking the aspect ratio. Using tetehedral
>>> cells will give you much greater flexibility in varying the
>>> discretization size while keeping the aspect ratio of cells
>>> close to 1. See examples/2d/subduction for an example of
>>> using the bias scheme.
>>> 
>>> Regards,
>>> Brad
>>> 
>>> 
>>> 
>>> On 03/13/2012 03:08 PM, Birendra jha wrote:
>>>> Dear developers,
>>>> 
>>>> I am trying to run a simple case like Step16 in the
>>> tutorial except
>>>> that density now varies with depth. I set the initial
>>> geostatic
>>>> stress from this density profile. I expect to see a
>>> zero
>>>> displacement. I have attached the files as zipped.
>>>> 
>>>> Why I am not getting any output (It must be some small
>>> mistake on my
>>>> part. Just can't figure it out)?
>>>> 
>>>> Thanks and regards Birendra
>>>> 
>>> 
>>> 
>> 
> 
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Charles A. Williams
Scientist
GNS Science
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PO Box 30368
Lower Hutt  5040
New Zealand
ph (office): 0064-4570-4566
fax (office): 0064-4570-4600
C.Williams at gns.cri.nz


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