ISSN:
1573-2894
Keywords:
large-scale optimization
;
partial separability
;
automatic differentiation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
Notes:
Abstract ELSO is an environment for the solution oflarge-scale optimization problems. With ELSO the user is required to provide only code for the evaluation of a partially separable function. ELSO exploits the partialseparability structure of the function to computethe gradient efficiently using automatic differentiation.We demonstrate ELSO's efficiency by comparing thevarious options available in ELSO.Our conclusion is that the hybrid option in ELSOprovides performance comparable to the hand-coded option, while having the significantadvantage of not requiring a hand-coded gradient orthe sparsity pattern of the partially separable function.In our test problems, which have carefully coded gradients,the computing time for the hybrid AD option is within a factor of two of thehand-coded option.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008628114432
Permalink
