Code from BasicOptimizer.scala:88 executed in 65.60 seconds (1.582 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: 674699697525600
Reset training subject: 674701129697700
Adding measurement 657e11b0 to history. Total: 0
LBFGS Accumulation History: 1 points
Constructing line search parameters: GD+Trust
New Minimum: 185.29831187427044 > 17.904027435928583
th(0)=17.904027435928583;dx=2.919530364280147E-7 (ERROR: Starting derivative negative)
Fitness changed from 185.29831187427044 to 17.904027435928583
Iteration 1 complete. Error: 17.904027435928583 Total: 6.9766; Orientation: 0.0284; Line Search: 2.9659
<a id="p-3"></a>Iteration 1
<a id="p-2"></a>
Adding measurement 4ba5272e to history. Total: 1
LBFGS Accumulation History: 2 points
th(0)=17.904027435928583;dx=-6.13437677082424E-7
New Minimum: 17.904027435928583 > 17.904022879898548
END: th(4.641588833612779)=17.904022879898548; dx=-4.099031480694962E-7 evalInputDelta=4.556030035018921E-6
Fitness changed from 17.904027435928583 to 17.904022879898548
Iteration 2 complete. Error: 17.904022879898548 Total: 3.9259; Orientation: 0.0034; Line Search: 2.6474
<a id="p-5"></a>Iteration 2
<a id="p-4"></a>
Adding measurement 2f6bf9fb to history. Total: 2
LBFGS Accumulation History: 3 points
th(0)=17.904022879898548;dx=-6.155490962960682E-7
New Minimum: 17.904022879898548 > 17.904015075415373
END: th(10.000000000000002)=17.904015075415373; dx=-4.119276032156045E-7 evalInputDelta=7.80448317527771E-6
Fitness changed from 17.904022879898548 to 17.904015075415373
Iteration 3 complete. Error: 17.904015075415373 Total: 4.6890; Orientation: 0.0046; Line Search: 3.3462
<a id="p-7"></a>Iteration 3
<a id="p-6"></a>
Adding measurement d50bdc8 to history. Total: 3
Rejected: LBFGS Orientation magnitude: 3.696e+05, gradient 7.892e-04, dot -0.844; [518adf61-7a8e-4f71-8691-9a2fecee6893 = 1.000/1.000e+00]
Orientation rejected. Popping history element from 17.904015075415373, 1
...skipping 7693 bytes...
690031885)=17.869978167116642; dx=-4.769567909486727E-7 evalInputDelta=0.01898404210805893
Fitness changed from 17.8889622092247 to 17.869978167116642
Iteration 13 complete. Error: 17.869978167116642 Total: 3.9091; Orientation: 0.0407; Line Search: 2.5794
Adding measurement 71b6ccab to history. Total: 3
Rejected: LBFGS Orientation magnitude: 1.325e+05, gradient 8.859e-04, dot -0.801; [518adf61-7a8e-4f71-8691-9a2fecee6893 = 1.000/1.000e+00]
Orientation rejected. Popping history element from 17.869978167116642, 17.904022879898548, 17.904027435928583, 185.29831187427044
LBFGS Accumulation History: 3 points
Removed measurement 71b6ccab to history. Total: 3
th(0)=17.869978167116642;dx=-7.793455180853334E-7
New Minimum: 17.869978167116642 > 17.821091160178185
END: th(46415.88833612782)=17.821091160178185; dx=-5.898433325606904E-7 evalInputDelta=0.04888700693845749
Fitness changed from 17.869978167116642 to 17.821091160178185
Iteration 14 complete. Error: 17.821091160178185 Total: 4.0069; Orientation: 0.0381; Line Search: 2.6755
Adding measurement 42019b47 to history. Total: 3
Rejected: LBFGS Orientation magnitude: 1.163e+05, gradient 1.074e-03, dot -0.731; [518adf61-7a8e-4f71-8691-9a2fecee6893 = 1.000/1.000e+00]
Orientation rejected. Popping history element from 17.821091160178185, 17.904022879898548, 17.904027435928583, 185.29831187427044
LBFGS Accumulation History: 3 points
Removed measurement 42019b47 to history. Total: 3
th(0)=17.821091160178185;dx=-1.1451351170494155E-6
New Minimum: 17.821091160178185 > 17.645315593108535
END: th(100000.00000000007)=17.645315593108535; dx=-9.6493057941921E-7 evalInputDelta=0.1757755670696497
Fitness changed from 17.821091160178185 to 17.645315593108535
Iteration 15 complete. Error: 17.645315593108535 Total: 3.9643; Orientation: 0.0380; Line Search: 2.5892
<a id="p-15"></a>Iteration 15
<a id="p-14"></a>
Final threshold in iteration 16: 17.645315593108535 (> -Infinity) after 65.581s (< 3600.000s)
17.645315593108535