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added conmin, fix to objective scaling #1

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added conmin, fix to objective scaling #1

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fc8d16c
added conmin, fix to objective scaling
JustinSGray Apr 19, 2014
e9c2ac5
boo
JustinSGray Apr 21, 2014
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22 changes: 18 additions & 4 deletions examples/example.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
varspeed = True
varpitch = True
cdf_type = 'rayleigh'
optimizer = 'psqp'
optimizer = 'conmin'
# ------------------------

# ---- instantiate rotor object -------
Expand Down Expand Up @@ -85,7 +85,7 @@

# ---- control settings ------------
rotor.control.Vin = 3.0 # (Float, m/s): cut-in wind speed
rotor.control.Vout = 25.0 # (Float, m/s): cut-out wind speed
rotor.control.Vout = 50.0 # (Float, m/s): cut-out wind speed
rotor.control.ratedPower = 5e6 # (Float, W): rated power
rotor.control.pitch = 0.0 # (Float, deg): pitch angle in region 2 (and region 3 for fixed pitch machines)

Expand Down Expand Up @@ -114,10 +114,24 @@


# run one iteration to get baseline for normalization
rotor.driver.config_parameters()
rotor.driver.update_parameters()
rotor.driver.start_iteration()

rotor.driver.run_iteration()
rotor.AEP0 = rotor.aep.AEP
rotor.driver.run_iteration()
# rotor.AEP0 = rotor.aep.AEP
# rotor.driver.run_iteration()


inputs = ['cdf.x']
outputs = ['cdf.F']
rotor.cdf.run()
#rotor.driver.gradient_options.fd_step_type = 'relative'
#rotor.driver.gradient_options.fd_form = 'central'
rotor.check_gradient(inputs=inputs, outputs=outputs)


exit()
# run optimization
rotor.run()

Expand Down
11 changes: 8 additions & 3 deletions src/harpopt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
from pyopt_driver.pyopt_driver import pyOptDriver
except Exception:
pass
from openmdao.lib.drivers.api import SLSQPdriver
from openmdao.lib.drivers.api import SLSQPdriver, CONMINdriver
from openmdao.lib.casehandlers.api import DumpCaseRecorder

from rotorse.rotoraerodefaults import common_io_with_ccblade, common_configure_with_ccblade
Expand Down Expand Up @@ -44,7 +44,7 @@ def configure(self):
'Minor feasibility tolerance': 1e-6,
'Major optimality tolerance': 1e-5,
'Function precision': 1e-8,
'Iterations limit': 500,
'Iterations limit': 100,
'Print file': 'harpopt_snopt.out',
'Summary file': 'harpopt_snopt_summary.out'}

Expand All @@ -53,14 +53,19 @@ def configure(self):
self.driver.optimizer = 'PSQP'
self.driver.options = {'XMAX': 100.0,
'TOLG': 1e-4,
'MFV': 500,
'MFV': 100,
'IFILE': 'harpopt_psqp.out'}

elif self.optimizer == 'slsqp':
self.replace('driver', SLSQPdriver())
self.driver.accuracy = 1.0e-6
self.driver.maxiter = 500

elif self.optimizer == "conmin":
self.replace('driver', CONMINdriver())
self.driver.delfun = 1e-6
self.driver.itmax = 500

else:
print 'invalid optimizer specified'
exit()
Expand Down