[ADOL-C] increase buffer size for tape files

[Kshitij Kulshreshtha]

Hello, you don't have to change the values in usrparms.h at all. You can set the buffer sizes in a file called .adolcrc in your execution directory. This is documented in the manual too.

Regards.
Kshitij.
--
Dr. Kshitij Kulshreshtha

Sent via Mobile Phone.

Pierre Martinon <martinon at cmap.polytechnique.fr> wrote:

Hello,

I am currently using Adol-C (with ColPack) and Ipopt to solve optimal 
control problems.
It works quite well and is extremely convenient to obtain the first and 
second derivatives for the optimization.

However, I noticed a significant drop in performances when working on a 
network, due to the access time to the .tap files.
Working on a local partition solves the issue, but I would like to get 
rid of .tap files completely if possible.
The tapeless mode seems to require additional modifications of the 
source code, which is not really an option in my case.
Therefore I tried to just increase the buffer sizes in usrparams.h, but 
the recompilation seems to set them back to their original values.
Am I missing something ?

Sincerely,
Pierre Martinon

-- 
INRIA and CMAP, Ecole Polytechnique
91128 Palaiseau, France
Web page: http://www.cmap.polytechnique.fr/~martinon
Email: martinon [at] cmap.polytechnique.fr
Phone: +33 169 334 608


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