Code from BasicOptimizer.scala:88 executed in 253.03 seconds (9.123 gc):
val lineSearchInstance: LineSearchStrategy = lineSearchFactory
val trainer = new IterativeTrainer(trainable)
trainer.setOrientation(orientation())
trainer.setMonitor(new TrainingMonitor() {
override def clear(): Unit = trainingMonitor.clear()
override def log(msg: String): Unit = {
trainingMonitor.log(msg)
BasicOptimizer.this.log(msg)
}
override def onStepFail(currentPoint: Step): Boolean = {
BasicOptimizer.this.onStepFail(trainable.addRef().asInstanceOf[Trainable], currentPoint)
}
override def onStepComplete(currentPoint: Step): Unit = {
if (0 < logEvery && (0 == currentPoint.iteration % logEvery || currentPoint.iteration < logEvery)) {
val image = currentImage()
timelineAnimation += image
val caption = "Iteration " + currentPoint.iteration
out.p(caption + "\n" + out.jpg(image, caption))
}
BasicOptimizer.this.onStepComplete(trainable.addRef().asInstanceOf[Trainable], currentPoint)
trainingMonitor.onStepComplete(currentPoint)
super.onStepComplete(currentPoint)
}
})
trainer.setTimeout(trainingMinutes, TimeUnit.MINUTES)
trainer.setMaxIterations(trainingIterations)
trainer.setLineSearchFactory((_: CharSequence) => lineSearchInstance)
trainer.setTerminateThreshold(java.lang.Double.NEGATIVE_INFINITY)
val result = trainer.run.asInstanceOf[lang.Double]
trainer.freeRef()
result
Reset training subject: 606959761432300
Reset training subject: 606966330265000
Adding measurement 26d6daec to history. Total: 0
LBFGS Accumulation History: 1 points
Constructing line search parameters: GD+Trust
th(0)=25.636927103623748;dx=-1.2711977991360348E-5
New Minimum: 25.636927103623748 > 25.636886885389686
WOLFE (weak): th(2.154434690031884)=25.636886885389686; dx=-1.270888015522521E-5 evalInputDelta=4.0218234062194824E-5
New Minimum: 25.636886885389686 > 25.63684642314911
WOLFE (weak): th(4.308869380063768)=25.63684642314911; dx=-1.2711236380041962E-5 evalInputDelta=8.06804746389389E-5
New Minimum: 25.63684642314911 > 25.636685342527926
WOLFE (weak): th(12.926608140191302)=25.636685342527926; dx=-1.270435337276518E-5 evalInputDelta=2.4176109582185745E-4
New Minimum: 25.636685342527926 > 25.635956688784063
WOLFE (weak): th(51.70643256076521)=25.635956688784063; dx=-1.2715122675437277E-5 evalInputDelta=9.704148396849632E-4
New Minimum: 25.635956688784063 > 25.632062446326017
WOLFE (weak): th(258.53216280382605)=25.632062446326017; dx=-1.2765650248321541E-5 evalInputDelta=0.004864657297730446
New Minimum: 25.632062446326017 > 25.607412428595126
WOLFE (weak): th(1551.1929768229563)=25.607412428595126; dx=-1.3034836592408465E-5 evalInputDelta=0.02951467502862215
New Minimum: 25.607412428595126 > 25.421220024116337
WOLFE (weak): th(10858.350837760694)=25.421220024116337; dx=-1.3818346373758365E-5 evalInputDelta=0.21570707950741053
New Minimum: 25.421220024116337 > 24.008357416838408
END: th(86866.80670208555)=24.008357416838408; dx=-1.0149274651655142E-5 evalInputDelta=1.6285696867853403
Fitness changed from 25.636927103623748 to 24.008357416838408
Iteration 1 complete. Error: 24.008357416838408 Total: 70.4583; Orientation: 0.0387; Line Search: 51.6964
<a id="p-3"></a>Iteration 1
<a id="p-2"></a>
Adding measurement 2ea45459 to history. Total: 1
LBFGS Accumulation History: 2 points
th(0)=24.008357416838408;dx=-1.703119112692
...skipping 5598 bytes...
ation: 0.1505; Line Search: 21.5590
Adding measurement 57d33377 to history. Total: 3
Rejected: LBFGS Orientation magnitude: 1.652e+03, gradient 5.421e-04, dot -0.214; [8ead539d-dfc6-4b63-b55f-3b5583e29348 = 1.000/1.000e+00]
Orientation rejected. Popping history element from 3.6399890035390854, 20.665989194065332, 24.008357416838408, 25.636927103623748
LBFGS Accumulation History: 3 points
Removed measurement 57d33377 to history. Total: 3
th(0)=3.6399890035390854;dx=-2.9286762283489513E-7
New Minimum: 3.6399890035390854 > 3.1454076170921326
END: th(3360000.0000000014)=3.1454076170921326; dx=-6.701269910147502E-9 evalInputDelta=0.4945813864469528
Fitness changed from 3.6399890035390854 to 3.1454076170921326
Iteration 9 complete. Error: 3.1454076170921326 Total: 17.3930; Orientation: 0.1402; Line Search: 10.7780
Adding measurement 3c81edc6 to history. Total: 3
Rejected: LBFGS Orientation magnitude: 7.453e+02, gradient 7.272e-04, dot -0.130; [8ead539d-dfc6-4b63-b55f-3b5583e29348 = 1.000/1.000e+00]
Orientation rejected. Popping history element from 3.1454076170921326, 20.665989194065332, 24.008357416838408, 25.636927103623748
LBFGS Accumulation History: 3 points
Removed measurement 3c81edc6 to history. Total: 3
th(0)=3.1454076170921326;dx=-5.273478092456608E-7
Armijo: th(7238900.558507132)=4.840796887874603; dx=2.408278118350512E-7 evalInputDelta=-1.6953892707824707
Armijo: th(3619450.279253566)=3.3728390634059906; dx=2.678415347075064E-7 evalInputDelta=-0.22743144631385803
New Minimum: 3.1454076170921326 > 2.682052120566368
END: th(1206483.4264178553)=2.682052120566368; dx=-3.626463107611524E-8 evalInputDelta=0.46335549652576447
Fitness changed from 3.1454076170921326 to 2.682052120566368
Iteration 10 complete. Error: 2.682052120566368 Total: 28.4156; Orientation: 0.1418; Line Search: 22.7128
<a id="p-13"></a>Iteration 10
<a id="p-12"></a>
Final threshold in iteration 11: 2.682052120566368 (> -Infinity) after 253.011s (< 3600.000s)
2.682052120566368