Burst, Jobs, and Cross Platform Standalone Builds?

Unity Engine
1

Hey,

I’ve tried searching but not finding any clear answers. Pardon if this has asked before.

For our main builds, we’re using il2cpp on WindowsStandalone, Xbox, Nintendo Switch–Burst is a game changer, works great, everything is happy. Burst/Jobs is now integral to the project.

I would really like to support Mac and Linux–at least if its not too much hassle. I do not have a Mac or Linux build machine, nor do I really want to get one setup.

a) If I build Mac/Linux locally, I have to disable il2cpp. Minor performance hit, but I’ll take a mono Mac build over no Mac build.
b) With il2cpp disabled, I have a Linux build. Seems to be fine, runs fine… except, as soon as gameplay starts it fills the log file with:

InvalidOperationException: This should have been initialized by code gen
at Unity.Jobs.IJobBurstScheduableExtensions.Schedule[T] (T jobData, Unity.Jobs.JobHandle dependsOn) [0x00019] in :0
at Unity.Entities.ChunkIterationUtility.PreparePrefilteredChunkLists (System.Int32 unfilteredChunkCount, Unity.Entities.UnsafeMatchingArchetypePtrList archetypes, Unity.Entities.EntityQueryFilter filter, Unity.Jobs.JobHandle dependsOn, Unity.Jobs.LowLevel.Unsafe.ScheduleMode mode, Unity.Collections.NativeArray`1[System.Byte]& prefilterDataArray, System.Void*& deferredCountData) [0x000ba] in <5d5a854347494de1a5caa65aeedc545c>:0
at Unity.Entities.JobChunkExtensions.ScheduleInternal[T] (T& jobData, Unity.Entities.EntityQuery query, Unity.Jobs.JobHandle dependsOn, Unity.Jobs.LowLevel.Unsafe.ScheduleMode mode, System.Boolean isParallel) [0x00010] in <5d5a854347494de1a5caa65aeedc545c>:0
at Unity.Entities.JobChunkExtensions.Schedule[T] (T jobData, Unity.Entities.EntityQuery query, Unity.Jobs.JobHandle dependsOn) [0x00000] in <5d5a854347494de1a5caa65aeedc545c>:0
at Unity.Physics.Systems.ExportPhysicsWorld.OnUpdate () [0x0007c] in :0
at Unity.Entities.SystemBase.Update () [0x00041] in <5d5a854347494de1a5caa65aeedc545c>:0
at Unity.Entities.ComponentSystemGroup.UpdateAllSystems () [0x0006a] in <5d5a854347494de1a5caa65aeedc545c>:0
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
Unity.Debug:LogException(Exception)
Unity.Entities.ComponentSystemGroup:UpdateAllSystems()
Unity.Entities.ComponentSystemGroup:OnUpdate()
Unity.Entities.ComponentSystem:Update()
Unity.Entities.DummyDelegateWrapper:TriggerUpdate()

I’m using Burst 1.3.2. My understanding is that cross compilation for standalone (Windows/Linux/Mac) is now a feature and I should have been able to generate my non-il2cpp Linux Build?

What would I need to do as a Windows based dev to build for Linux and or Mac? I’m open to using Unity Cloud Build if that works–does il2cpp and or Burst/Jobs work with either target yet?

2

Can you confirm whether you are using Entities and the Entities.ForEach or not? Just want to rule some stuff out early!

3

I’m using the Entities namespace a fair bit (all my high performance stuff is in a Burst compiled Job), but not the Entities.ForEach. I am using the DOTS Physics system, but only for raycasts. I am not using any other ECS type patterns, like Entities/Systems.

The basic pattern is create some general input (static data blob and a dynamic input struct), pass in these inputs to a job via native array, schedule the job, and then read the output on the next frame. Lets me do some pretty crazy things (pass in 3 points and have a crazy wobbly bent spline mesh come out the other side).

I had all the packages updated a week or so ago and I’m on 2019.4.0f1. Updating to absolute latest is a bit of a pain given the platform modules I need to install.

I hope this helps–is there anything further I can do to help debug this?

Thanks!

A

4

Ok - could you file a fogbugz with a repro for this? It looks like an entities foreach issue to me, and I’ll be able to point the right person at this.

5

Filed, Case 1263371

Hope that helps, happy to help track this down more. Have a few Linux and Mac gamers who would like to be able to play my otherwise-apparently-functioning-game :slight_smile:

6

FYI it still happens in 2020:

InvalidOperationException: This should have been initialized by code gen
at Unity.Jobs.IJobBurstScheduableExtensions.Schedule[T] (T jobData, Unity.Jobs.JobHandle dependsOn) [0x00019] in <87c53671be6e4e8abb32063fe03ecc46>:0
at Unity.Entities.ChunkIterationUtility.PreparePrefilteredChunkLists (System.Int32 unfilteredChunkCount, Unity.Entities.UnsafeMatchingArchetypePtrList archetypes, Unity.Entities.EntityQueryFilter filter, Unity.Jobs.JobHandle dependsOn, Unity.Jobs.LowLevel.Unsafe.ScheduleMode mode, Unity.Collections.NativeArray`1[System.Byte]& prefilterDataArray, System.Void*& deferredCountData) [0x000ba] in <8f05e390b45643d6b5043f19c0e40270>:0
at Unity.Entities.JobChunkExtensions.ScheduleInternal[T] (T& jobData, Unity.Entities.EntityQuery query, Unity.Jobs.JobHandle dependsOn, Unity.Jobs.LowLevel.Unsafe.ScheduleMode mode, System.Boolean isParallel) [0x00010] in <8f05e390b45643d6b5043f19c0e40270>:0
at Unity.Entities.JobChunkExtensions.Schedule[T] (T jobData, Unity.Entities.EntityQuery query, Unity.Jobs.JobHandle dependsOn) [0x00000] in <8f05e390b45643d6b5043f19c0e40270>:0
at Unity.Physics.Systems.ExportPhysicsWorld.OnUpdate () [0x0007c] in <8ccf44601ea14aac989b5ccb4bd97b6c>:0
at Unity.Entities.SystemBase.Update () [0x00041] in <8f05e390b45643d6b5043f19c0e40270>:0
at Unity.Entities.ComponentSystemGroup.UpdateAllSystems () [0x0006a] in <8f05e390b45643d6b5043f19c0e40270>:0
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
Unity.Debug:LogException(Exception)
Unity.Entities.ComponentSystemGroup:UpdateAllSystems()
Unity.Entities.ComponentSystemGroup:OnUpdate()
Unity.Entities.ComponentSystem:Update()
Unity.Entities.DummyDelegateWrapper:TriggerUpdate()