[ADOL-C] ADOL-C Digest, Vol 18, Issue 4

[Kshitij Kulshreshtha]

Hello,

yes you are correct, setting repeat=1 will effectively reuse the pattern
and seed matrix allocated the last time, if you are using the
sparse_jac/sparse_hess drivers.

Regards.

Kshitij


As on 2013-09-30 14:28h, Pierre Martinon did write:
> 
> /
> //For the sparse_jac() call it does save some time if the sparse
> structure is preallocated, especially if you call it many times with
> similar structure. If the pattern remains the same always you should
> indeed store the pattern and the seed matrix and call only forward /
> reverse followed by recovery. /
> 
> Hi everyone,
> 
> I am probably missing something here, but what is the difference between
> manually preallocating / storing the pattern, and just using repeat=1 ?
> 
> Thanks!
> Pierre
> 
> 
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-- 
Dr. Kshitij Kulshreshtha

Institut für Mathematik,
Universität Paderborn,
Warburger Straße 100,
33098 Paderborn.

Büro: A3.235

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