[MITgcm-support] MIT with OpenAD

[Patrick Heimbach]

Abhisek,

MITgcm works with essentially two different choices of AD tools:
1. TAF (and to limited extent its predecessor TAMC)
2. OpenAD

Our default tool used is TAF, a commercial tool which grew
out of the non-commercial predecessor TAMC.
For you to be able to use TAF (via a script called "staf")
you need to obtain a license from Fastopt which develops TAF.
You should send a request to info at fastopt.de
They may be able to give you a certain (hopefully significant)
period of free trial license for you to explore the utility of the tool.

Regarding the alternative open-source, OpenAD, 
I've sent some initial pointers in below email on how to
obtain and implement the OpenAD tool locally.
Jean may send you some specific pointers on how to connect
OpenAD to TAF, if need be.

-Patrick

On Jun 21, 2012, at 12:54 PM, Jean Utke wrote:

> Hi Abhisek,
> 
> I will get back to you with some info before  COB today.
> 
> jean
> 
> On 06/21/2012 11:50 AM, Abhisek Chakraborty wrote:
>> Respected Dr. Patrick Heimbach,
>> 
>> Generation of AD code for OpenAD example depends on the adjoint_f95
>> ("-adof=...adjoint_f95") which uses "tamc"&  "staf" executables
>> (compilers). Now my query is whether TAMC/TAF are freely available? if
>> so, please post the link to download these packages.
>> 
>> Thanking in advance,
>> Abhisek
>> 
>> On 6/21/12, Patrick Heimbach<heimbach at mit.edu>  wrote:
>>> >  Andrey,
>>> >
>>> >  below website is a good starting point (it's not password-protected):
>>> >  http://www.mcs.anl.gov/OpenAD/
>>> >
>>> >  It contains extensive instructions on how to download and install OpenAD,
>>> >  along with a suite of test examples.
>>> >
>>> >  Relevant MITgcm verification experiment is
>>> >  (if you've downloaded the MITgcm repository):
>>> >  verification/OpenAD/
>>> >
>>> >  Please give that a try.
>>> >
>>> >  -Patrick
> 
> 
> -- 
> Jean Utke
> Argonne National Lab. / MCS (240-1156)
> 9700 S Cass Ave., Argonne, IL, 60439, USA
> phone +1 630 252 4552 / mobile  +1 630 363 5753
> 
> 
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---
Patrick Heimbach | heimbach at mit.edu | http://www.mit.edu/~heimbach
MIT | EAPS 54-1420 | 77 Massachusetts Ave | Cambridge MA 02139 USA
FON +1-617-253-5259 | FAX +1-617-253-4464 | SKYPE patrick.heimbach


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