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Gale/patches/server/0042-SIMD-support.patch
2022-12-24 21:59:56 +01:00

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4.5 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Thu, 24 Nov 2022 01:19:12 +0100
Subject: [PATCH] SIMD support
License: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
Gale - https://galemc.org
This patch is based on the following patch:
"Add SIMD utilities"
By: Kevin Raneri <kevin.raneri@gmail.com>
As part of: Pufferfish (https://github.com/pufferfish-gg/Pufferfish)
Licensed under: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
diff --git a/build.gradle.kts b/build.gradle.kts
index ebe3f85542004002713dd327e8a423f2570695ed..f3287cea49ee7352a1065dc65927ab9922d0a9c4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -62,6 +62,7 @@ tasks.withType<JavaCompile> {
compilerArgs.add("-Xlint:-module")
compilerArgs.add("-Xlint:-removal")
compilerArgs.add("-Xlint:-dep-ann")
+ compilerArgs.add("--add-modules=jdk.incubator.vector") // Gale - Pufferfish - SIMD support
}
// Gale end - hide irrelevant compilation warnings
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index 9c3ccbbd657d1605b8fabb6e01c11ff31f39a17e..1d1db89362b78ac34d46cdd71b9ab27404b98e48 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -14,6 +14,8 @@ import java.util.Locale;
import java.util.Optional;
import java.util.function.BooleanSupplier;
import javax.annotation.Nullable;
+
+import gg.pufferfish.pufferfish.simd.SIMDDetection;
import net.minecraft.DefaultUncaughtExceptionHandler;
import net.minecraft.DefaultUncaughtExceptionHandlerWithName;
import net.minecraft.SharedConstants;
@@ -46,6 +48,7 @@ import net.minecraft.world.level.GameType;
import net.minecraft.world.level.block.entity.SkullBlockEntity;
import net.minecraft.world.level.storage.LevelStorageSource;
import org.galemc.gale.command.GaleCommands;
+import org.galemc.gale.configuration.GaleGlobalConfiguration;
import org.slf4j.Logger;
// CraftBukkit start
@@ -223,6 +226,21 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
io.papermc.paper.brigadier.PaperBrigadierProviderImpl.INSTANCE.getClass(); // init PaperBrigadierProvider
// Paper end
+ // Gale start - Pufferfish - SIMD support
+ // Attempt to detect vectorization
+ try {
+ SIMDDetection.isEnabled = SIMDDetection.canEnable(LOGGER, GaleGlobalConfiguration.get().smallOptimizations.simd.logVectorSizesToConsole);
+ } catch (NoClassDefFoundError | Exception ignored) {}
+
+ if (!SIMDDetection.isEnabled && !SIMDDetection.unsupportingLaneSize && GaleGlobalConfiguration.get().smallOptimizations.simd.warnIfDisabled) {
+ LOGGER.warn("SIMD operations are available for your server, but are not configured!");
+ LOGGER.warn("To enable additional optimizations, add \"--add-modules=jdk.incubator.vector\" to your startup flags, BEFORE the \"-jar\".");
+ LOGGER.warn("If you have already added this flag, then SIMD operations are not supported on your JVM or CPU.");
+ LOGGER.warn("Debug: Java: " + System.getProperty("java.version") + ", test run: " + SIMDDetection.testRun);
+ LOGGER.warn("If you would like to disable this message, set simd.warn-if-disabled to false in gale-global.yml");
+ }
+ // Gale start - Pufferfish - SIMD support
+
this.setPvpAllowed(dedicatedserverproperties.pvp);
this.setFlightAllowed(dedicatedserverproperties.allowFlight);
this.setMotd(dedicatedserverproperties.motd);
diff --git a/src/main/java/org/galemc/gale/configuration/GaleGlobalConfiguration.java b/src/main/java/org/galemc/gale/configuration/GaleGlobalConfiguration.java
index 2a3cd1baab364126d10a42c8ab59f3da8ca9bdfb..5ade5d2ff3a68cf9e0240fc86e4b63432cb899c0 100644
--- a/src/main/java/org/galemc/gale/configuration/GaleGlobalConfiguration.java
+++ b/src/main/java/org/galemc/gale/configuration/GaleGlobalConfiguration.java
@@ -25,6 +25,14 @@ public class GaleGlobalConfiguration extends ConfigurationPart {
public int dummyValue = 0;
+ // Gale start - Pufferfish - SIMD support
+ public Simd simd;
+ public class Simd extends ConfigurationPart {
+ public boolean warnIfDisabled = true;
+ public boolean logVectorSizesToConsole = false;
+ }
+ // Gale end - Pufferfish - SIMD support
+
}
public Misc misc;