# TELEMAC-3D + TOMAWAC

**URL:** <https://opentelemac.org/forum/t/telemac-3d-tomawac/5163>\
**Category:** TOMAWAC\
**Created:** [August 31, 2018, 2:15pm UTC](https://opentelemac.org/forum/t/telemac-3d-tomawac/5163 "2018-08-31T14:15:09Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![user\_12315](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/b3f665/32.png) [@user\_12315](https://opentelemac.org/forum/u/user_12315)\
**Post date:** [August 31, 2018, 2:15pm UTC](https://opentelemac.org/forum/t/telemac-3d-tomawac/5163/1 "2018-08-31T14:15:09Z")

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Hello [name removed],

I need to run Tomawac and Telemac3d together (in parallel).

How can I do it?

[name removed]

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**Author:** ![user\_97](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/e68b1a/32.png) [@user\_97](https://opentelemac.org/forum/u/user_97)\
**Post date:** [August 31, 2018, 2:29pm UTC](https://opentelemac.org/forum/t/telemac-3d-tomawac/5163/2 "2018-08-31T14:29:57Z")

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Hello,

You can first read the user documentations and have a look at the following example:

v7p3r1/examples/tomawac/3Dcoupling

[name removed]

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<div class="post-metadata">

**Author:** ![user\_12315](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/b3f665/32.png) [@user\_12315](https://opentelemac.org/forum/u/user_12315)\
**Post date:** [September 4, 2018, 3:43pm UTC](https://opentelemac.org/forum/t/telemac-3d-tomawac/5163/3 "2018-09-04T15:43:17Z")

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hi,

in this example which is the command that i have to use??

telemac3d.py --ncsize=4 T3D\_littoral.cas

or

tomawac.py --ncsize=4 tom\_littoral.cas ??

the first give me an error like this…

[https://scontent-mxp1-1.xx.fbcdn.net/v/t1.15752-9/40685489\_231979724140181\_3658538075711078400\_n.jpg?\_nc\_cat=0&oh=a300f909a4c3ffc92fc566dfac407aa5&oe=5BF930D3](https://scontent-mxp1-1.xx.fbcdn.net/v/t1.15752-9/40685489_231979724140181_3658538075711078400_n.jpg?_nc_cat=0&oh=a300f909a4c3ffc92fc566dfac407aa5&oe=5BF930D3)

the second do something but i don’t know if is a good result.

thank a lot

[name removed]

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<div class="post-metadata">

**Author:** ![user\_63](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/c4cdca/32.png) [@user\_63](https://opentelemac.org/forum/u/user_63)\
**Post date:** [September 4, 2018, 3:55pm UTC](https://opentelemac.org/forum/t/telemac-3d-tomawac/5163/4 "2018-09-04T15:55:36Z")

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Hi

The second command run Tomawac only

The first command run Telemac3d coupled with Tomawac which is probably what you want to do.

The error comes from a problem in tomawac more specifically in the punctual results parts. You probably didn’t choose to write such result but as there is non name by default this create a conflict in the parallel writing.

As a potential solution you could give a name to the keyword PUNCTUAL RESULT FILE (check the exact spelling) and this will probably solve your problem (I hope!)

Regards

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<div class="post-metadata">

**Author:** ![user\_12315](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/b3f665/32.png) [@user\_12315](https://opentelemac.org/forum/u/user_12315)\
**Post date:** [October 18, 2018, 10:00am UTC](https://opentelemac.org/forum/t/telemac-3d-tomawac/5163/5 "2018-10-18T10:00:44Z")

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Hi,

i worked a lot for the coupling between telemac and tomawac. I can’t found a solution for the run becouse it need a lot of time.

For run 3 hours I need something like 2 hours and half of real time.

And i can’t work with high time steps and high period of coupling.

[name removed]