[MOAB-dev] coupler test can not work well

[魏华祎]

Hi, MOAB Developer,

I  code a very simple test , please see the attachment.  The source
mesh is  following:

(-1, 1) ------------(0, 1)--------------(1, 1)
    |                     |                    |
    |                     |                    |
(-1, 0)-------------(0, 0)-------------(1, 0)
    |                     |                   |
    |                     |                   |
(-1, -1)------------(0, -1)------------(1, -1)

In every quad, there is a constant. For example, [1.0, 2.0, 2.0, 3.0]
( from left to right and bottom to up) .

I just change point (0, 0)  as (0.3, 0.4) to get the target mesh.

I can compile it, but when I run it, it throw a segment error.

This is my first time to use mb coupler tool, and not sure what
mistake I have made, so I need your help.

Thanks very much.

Best

Huayi

2015-07-09 9:56 GMT+08:00 魏华祎 <huayiwei1984 at gmail.com>:
> My application mesh is a block structured mesh, which vertices will
> move and hence the mesh quality will become bad,  so I need to
> optimize the location of mesh vertices. Then I need to tansfer data
> from old mesh to new mesh. That's my problem.  My program is parallel
> and there is a structured quad mesh on each processor.  By the way,
> my program is not based on Moab. But I want to use
> the coupler tool in moab. So fristly I need transfer my mesh into Moab.
>
> At present, I explicityly transfer my every block mesh to the
> repesentation of vertices and coonecicity, just as your suggection. I
> am writing a test first. Dose you have better idea about it?
>
> 2015-07-09 9:36 GMT+08:00 Vijay S. Mahadevan <vijay.m at gmail.com>:
>> If you are asking about the ScdBox structure, I'm unsure. I don't
>> think we have a test for this. However, if you explicitly represent
>> the vertices and connectivity, usage of a structured grid is
>> transparent to MOAB interfaces and everything should work as is.
>>
>> What type of problems are you solving ? Are you using a logically
>> structured or performing stencil computations ?
>>
>> Vijay
>>
>> On Wed, Jul 8, 2015 at 8:33 PM, 魏华祎 <huayiwei1984 at gmail.com> wrote:
>>> Hi, Vijay,
>>>
>>> Thanks for your reply.  So it also work on Structured Mesh
>>> Representation of Moab?
>>>
>>> Best
>>>
>>> Huayi
>>>
>>> 2015-07-09 6:50 GMT+08:00 Vijay S. Mahadevan <vijay.m at gmail.com>:
>>>> No it should work for any dimension and is not restricted to 3-D. Have
>>>> you tried using the coupler for your problem ? If you have issues,
>>>> send us a test case and the meshes. You can also use mbcoupler_test to
>>>> verify whether the solution defined on your source mesh is being
>>>> transferred correctly onto the target mesh.
>>>>
>>>> Vijay
>>>>
>>>> On Wed, Jul 8, 2015 at 5:33 PM, 魏华祎 <huayiwei1984 at gmail.com> wrote:
>>>>> Hi, There,
>>>>>
>>>>> I am trying to use Moab Coupler transfer data between 2d meshes, but I
>>>>> am not sure if  it works on 2d mesh.
>>>>>
>>>>> Please give me some suggestion, thanks very much.
>>>>>
>>>>> Best
>>>>>
>>>>> Huayi
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