Parallelized hybrid optimization methods for nonsmooth problems using NOMAD and linesearch
G. Liuzzi, K. Truemper
We provide the following sections:
It is also possible to download everything as a single zip file
(beware that size of the zip file is approximately 81MB)
Convention of file names:
There are two types of file names for graphs.
- For the comparison of NOMAD, DENCON, and DENPAR as stand-alone
methods, the following example serves as a guide.
nomad.alone.dencon.alone.denpar.alone.noproc.50K.n500_30.pdf
"noproc": run on single processor ; for 64 processors runs, this is
replaced by "64proc" .
"50K": limit on number of evaluations is 50,000 .
"n500": NOMAD is run for 500 evaluations to obtain a starting solution
for all three cases .
"_30": problem set with 30 variables is solved. If the "_xx" part is missing,
the entire problem set is solved.
- For the comparison of hybrid methods, the following example serves as
a guide.
nomad.nomad.nomad.dencon.nomad.denpar.noproc.50K.3K.n500_30.pdf
"noproc": run on single processor; for 64 processors runs, this is
replaced by "64proc" .
"50K": limit on number of evaluations is 50,000 .
"3K": limit on number of evaluations for each iterative application of each method
is 3,000.
"n500": NOMAD is run for 500 evaluations to obtain a starting solution
for all three cases .
"_30": problem set with 30 variables is solved. If the "_xx" part is missing,
the entire problem set is solved.
Graphs for the comparison of NOMAD, DENCON, and DENPAR as stand-alone methods
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Graphs for the comparison of hybrid methods
- Single processor:
- 64 processors:
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Graphs for the comparison of NOMAD.DENCON with 500, 1000, 2000, 3000, 4000 and 5000 evals/iter:
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Graphs for the comparison of NOMAD.DENPAR with 500, 1000, 2000, 3000, 4000 and 5000 evals/iter:
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Evaluation tools (as Matlab script files)
To reproduce the graphs listed in the Graphs section, simply run the script "do_the_plots" (from
within a Matlab environment) and answer the questions that will be prompted.
Solver runs data files (as Matlab workspace variables):
- Data for the comparison of NOMAD, DENCON, and DENPAR as stand-alone methods
- Data for the comparison of hybrid methods
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Solver runs data files (as zipped text files):
- Data for NOMAD, DENCON, and DENPAR as stand-alone methods
- Data for NOMAD.DENCON hybrid method
- Data for NOMAD.DENPAR hybrid method
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