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TempleOSCDV4.01.ISO

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Terry A. Davis authored and minexew committed 2018-09-08 21:46:47 +02:00
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Doc/MultiCore.TXT
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$WW,1$TempleOS does master-slave multicore instead of SMP. $GREEN$Core#0$FG$ is the master. The master core assigns computational jobs to other cores. It is symmetrical, however, in the sense that you can freely do file access and heap allocations because there are locks. See $LK,"::/Demo/MultiCore/LoadTest.CPP"$. TempleOS does not move tasks between cores.
$WW,1$TempleOS does master-slave multicore instead of SMP. $FG,2$Core0$FG$ is the master. The master core's applications explicitly assign computational jobs to other cores and the TempleOS scheduler does not move tasks between cores.
Only tasks on core#0 can have windows, but other cores can help render them.
There are multicore safe locks for file access and heap allocations, however, so TempleOS is symmetrical in some sense. See $LK,"::/Demo/MultiCore/LoadTest.CPP"$.
Each core has a $GREEN$seth task$FG$ which is the father of all tasks on that core. Adam is the seth task on core 0.
Only tasks on $FG,2$core0$FG$ can have windows, but other cores can help render them.
Each core has an executive $FG,2$seth task$FG$ which is the father of all tasks on that core. Adam is the seth task on core 0.
You give a job to a seth task with $LK,"JobQue",A="MN:JobQue"$() and get the result with $LK,"JobResultGet",A="MN:JobResultGet"$(). You spawn a task on another core with $LK,"Spawn",A="MN:Spawn"$().
Note: You must use the $GREEN$LOCK$FG$ asm prefix when changing shared structures in a multicore environment. The $LK,"LBts",A="MN:LBts"$(), $LK,"LBtr",A="MN:LBtr"$() and $LK,"LBtc",A="MN:LBtc"$() instructions have $GREEN$LOCK$FG$ prefixes. The compiler has a $GREEN$lock{}$FG$ feature but it doesn't work well. See $LK,"::/Demo/MultiCore/Lock.CPP"$.
Note: You must use the $FG,2$LOCK$FG$ asm prefix when changing shared structures in a multicore environment. The $LK,"LBts",A="MN:LBts"$(), $LK,"LBtr",A="MN:LBtr"$() and $LK,"LBtc",A="MN:LBtc"$() instructions have $FG,2$LOCK$FG$ prefixes. The compiler has a $FG,2$lock{}$FG$ feature but it doesn't work well. See $LK,"::/Demo/MultiCore/Lock.CPP"$.
See $LK,"::/Demo/Graphics/Transform.CPP"$.
See $LK,"::/Kernel/MultiProc.CPP"$.