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Memoized bake planes

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- Planes fill lazily per column with ready bits and batch only missing columns on full-chunk requests
- Natural fills batch only the base heights Terrain3D still needs and reuse the sparse memo
- Bounds lattice and hydrology planner reads stay out of the bake
- Bake capacity is eight times the noise cache, covering the measured working set
- Generator evaluation counters and a bake census print from the probe
- Parity test compares batched chunk base heights and evaluation counts with the scalar path
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Brian Neumann-Fopiano committed 2026-10-21 23:22:16 -04:00
1 parent 037156ab7d
commit 1acda886b3
12 files changed
+666 -291
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probe/src/main/java/art/arcane/iris/probe/GenerationProbe.java
+18 -3
View File
@@ -18,6 +18,8 @@
package art.arcane.iris.probe;
import art.arcane.iris.generation.bake.BakePlane;
import art.arcane.iris.generation.bake.GeneratorEvaluations;
import art.arcane.iris.pack.loading.IrisData;
import art.arcane.iris.pack.PackValidationResult;
import art.arcane.iris.pack.PackValidator;
@@ -553,9 +555,11 @@ public final class GenerationProbe {
List<ChunkCoordinate> coordinates, OutcomeSink sink) throws IOException {
int totalChunks = coordinates.size();
long measuredStartEpochMillis = 0L;
GeneratorEvaluations.Snapshot measuredStartEvaluations = GeneratorEvaluations.snapshot();
for (int index = 0; index < totalChunks; index++) {
if (index == configuration.warmupChunks()) {
measuredStartEpochMillis = System.currentTimeMillis();
measuredStartEvaluations = GeneratorEvaluations.snapshot();
}
drainReported();
ChunkOutcome outcome = generateChunk(engine, index, coordinates.get(index), configuration.multicore());
@@ -563,12 +567,22 @@ public final class GenerationProbe {
sink.accept(outcome, index >= configuration.warmupChunks());
printProgress(configuration, index + 1, totalChunks);
}
printWindow(measuredStartEpochMillis, System.currentTimeMillis());
printWindow(engine, measuredStartEpochMillis, System.currentTimeMillis(), measuredStartEvaluations);
}
private static void printWindow(long startEpochMillis, long endEpochMillis) {
private static void printWindow(Engine engine, long startEpochMillis, long endEpochMillis, GeneratorEvaluations.Snapshot startEvaluations) {
System.out.println("IRIS_GENPROBE_WINDOW phase=measured start_epoch_ms=" + startEpochMillis
+ " end_epoch_ms=" + endEpochMillis);
GeneratorEvaluations.Snapshot evaluations = GeneratorEvaluations.snapshot().minus(startEvaluations);
System.out.printf(Locale.ROOT, "IRIS_GENPROBE_GENERATORS baked_chunks=%d baked_evaluations=%d evaluations_per_baked_chunk=%.3f batched_evaluations=%d scalar_evaluations=%d%n",
evaluations.bakedChunks(), evaluations.bakedEvaluations(), evaluations.bakedEvaluationsPerChunk(),
evaluations.batchedEvaluations(), evaluations.scalarEvaluations());
long[] census = engine.getComplex().bakeCensus();
StringBuilder planes = new StringBuilder("IRIS_GENPROBE_BAKE entries=").append(census[BakePlane.values().length]);
for (BakePlane plane : BakePlane.values()) {
planes.append(' ').append(plane.name().toLowerCase(Locale.ROOT)).append('=').append(census[plane.ordinal()]);
}
System.out.println(planes);
}
private static void generateParallel(Engine engine, ProbeConfiguration configuration, ProbeOptions options,
@@ -594,10 +608,11 @@ public final class GenerationProbe {
List<Integer> measured = spiralOrder(coordinates, configuration.warmupChunks(),
configuration.centerChunkX(), configuration.centerChunkZ());
long measuredStartEpochMillis = System.currentTimeMillis();
GeneratorEvaluations.Snapshot measuredStartEvaluations = GeneratorEvaluations.snapshot();
long measuredStarted = System.nanoTime();
runPhase(executor, engine, configuration, coordinates, measured, outcomes);
measuredWallNanos = System.nanoTime() - measuredStarted;
printWindow(measuredStartEpochMillis, System.currentTimeMillis());
printWindow(engine, measuredStartEpochMillis, System.currentTimeMillis(), measuredStartEvaluations);
unattributed.addAll(drainReported());
System.out.println("[genprobe] measured progress: " + configuration.measuredChunks() + "/"
+ configuration.measuredChunks());