GCN Gen 3 developer manuals published

[NTMBK]

http://amd-dev.wpengine.netdna-cdn..../07/AMD_GCN3_Instruction_Set_Architecture.pdf

Important differences between Generation 2 and 3 GPUs
 Data Parallel ALU operations improve “Scan” and cross-lane operations.
 Scalar memory writes.
 In Generation 2, a kernel could read from a scalar data cache to retrieve
constant data. In Generation 3, that cache now supports reads and writes.
 Compute kernel context switching.
 Compute kernels now can be context-switched on and off the GPU.

 

[ShintaiDK]

Sounds like GCN 1.2.

GCN 1.0(G1), 1.1(G2), 1.2(G3).

 

[The Alias]

Sounds like GCN 1.2.

GCN 1.0(G1), 1.1(G2), 1.2(G3).

I feel as if you're insinuating it's the exact same architecture as tonga. Is that true?

 

[Ken g6]

The link does appear to have a date of July 2013.

 

[geoxile]

I feel as if you're insinuating it's the exact same architecture as tonga. Is that true?

1.X is something Anand just made up.

AMD uses generations or Graphics IPvX. GCN Generation 1 (IPv6) is 1.0, Gen2 (IPv7) is 1.1, Gen3 (IPv8) is 1.2.

This is a reference manual for GCN 1.2, which Tonga uses.

 

[NTMBK]

The link does appear to have a date of July 2013.

Yes, but the manual itself has a March 2015 date on it.

Looks like I jumped the gun though, the manual refers to Volcanic Islands by name a few times.

 

[dacostafilipe]

Yes, but the manual itself has a March 2015 date on it.

AMD even lists it as from 2015 in the dev section:

http://developer.amd.com/resources/documentation-articles/developer-guides-manuals/

 

[Techhog]

I feel as if you're insinuating it's the exact same architecture as tonga. Is that true?

That's the same idea he's been pushing for a while. He also asserts that 28nm will still be the main node for GPUs in 2017.