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It could very well stick to quarter rate execution, while the issuing logic auto applies the 4x multipler in hardware to TRANS delay...

I think there are two branches of possibilities… The 2nd ALU pipeline does only the listed 13 instructions. There will be Wave64...

https://reviews.llvm.org/D128218 Looks like VOPD supports only co-issuing the core f32 instructions (add/mul/fma/etc) plus a few...

LDS Direct Read is not new to RDNA3. It allows one dword (32-bit value) at the LDS offset held by the M0 register to be always available...

The scalar ALU pipeline itself is probably single cycle execution with 1 extra stage for writeback (or a dest cache like VRF), but the...

Yeah. I would guess that “_dep_N” declares a dependency on the Nth instruction issued before the control word, while “_cycle_N” declares...

Might be a bit far fetched, but it reminds me of Bulldozer which supports -1 clk in latency with special bypass mode for consecutive FMA...

If this is the basis of “as confusing as Ampere”, GCN/RDNA do not even have a separate integer SIMD ALU pipeline to co-issue to… :oops:

There was a recent(?) example of muddling with units similarly, getting sued and losing the suit. Many had argued for years that it was...

My quick gist is that this is nothing more than an elaboration of the previous super-SIMD patent, focusing on specifically the...

Plot twist: They are sunsetting their (CPU) bitcode initiative. 😛 I'd argue that, the API and toolchain owner/driver should be the...

With Metal 3, Apple has committed to support offline-compiled GPU binaries, with asynchronous ahead-of-time recompilation at app install...

I am excited about this. AMD has support for GPU accessing pageable system memory since Kaveri, just that it has always been capped at...

Ehm, the API documentation says... both?

One plausible case for 16-lane SIMD IMO is that: (1) The native wavefront size remains 32 lanes, including the VRFs, operand collectors...