https://devblogs.nvidia.com/paralle lforall/inside-volta/ &

>>62286551
This is old news, we still don't know anything about the feature or if it will feature prominently in consumer Volta, or if it has any effect on non-compute workloads at all.

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O boi

AMD's scheduler is apparently several generations behind nvidia's.

>Vega touts warp packing as a new exciting feature
>It doesn't even work
>Nvidia is already capable of scheduling individual threads

>>62286551
I don't understand this pic.

Why are curved arrows better than straight arrows?

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>>62286602
Because NVidia Graphworks(tm).

>>62286551
Nice, any news on the new Tegras coming out? Is thw only rjibg kewping me from getting a Switch, underpowered garbage

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>>62286551
The GTX2070 won't need external power connectors

>>62286551
well yeah the card itself its more efficient since they have shifted everything on the cpu LOL

their version of async the MPS is literally being emulated on the cpu along with the warp SC
i will love when async heavy games come to see the total system power draw LOL

>>62286602
Previously, you were bound to warp convergence. With volta, there are cooperative groups, meaning that you can schedule individual threads without warp divergence.

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>>62286551
NOOOOOOOOOOOOOOO

DELETE THIS

IT'S NOT FAIR, AMD WAS SUPPOSED TO FUCKING WIN

>>62286551
>do a half-node shrink
>throw moar ALUs
>claim 50 more efficiency *per SM*
Whoa.

>>62286551
> mfw novideofags like getting anal from propietary technologies

Anyway, 17.320 batch for Vega when?

>>62287588
Libre hardware GPU when?

>>62287604
now, let /g/ design it, send it to god raja

>>62287604
Never since even basic shaders are patented.

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>>62287671
Done

>>62287671
I can make the logo

>>62286602
That picture is extremely out of context.

I'll try to explain.

In earlier generations of GPUs, threads executed in lock step with each other. So each thread in a group (called a "warp") was always at the same place.

Issue with that was that some times you have Conditionals like so:

  if (test) { 
  code block A;
} else {
  code block B;
}

In those case, threads that passed the test would execute A and threads that failed would stop execution and wait for the other threads to finish. Then it flips, first group halts and the second groups executes. Once the condition block ends, all threads would continue executing.

Here's the problem, if your code was doing something that was communicating with other threads, and you were waiting on a reply from another thread that was halted until your thread completed, the threads would become deadlock unable to proceed.

This means algorithms that required fine grain communication with each other are not possible on older GPUs.

Volta's new approach allows for halted threads to continue execution by switching between executing threads and halted threads at regular intervals, and eventually forcing a convergence. This means deadlocks are not possible, and different more efficient algorithms can be used on the hardware.


This is more applicable to CUDA development instead for graphics though.

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>>62288445
Thank you

>>62287515
>they have shifted everything on the cpu LOL
Is that bad?
With 6 and 8 core CPUs being affordable, it makes perfect sense to off load inefficient hardware scheduling to the CPU.

>>62286551
So this mean Volta won't even have a partial hardware scheduler?

>>62288445
Thaks sir.