... | ... | @@ -69,13 +69,13 @@ This wiki page gives an overview of the various server machines offered by the A |
|
|
instruction set used. A tabular overview can be found on the WikiChip pages linked above. The
|
|
|
value ranges given in the table ("A..B GHz") state the clock frequencies for single-core load and
|
|
|
full load.
|
|
|
- SMT refers to [Simultaneous multithreading](https://en.wikipedia.org/wiki/Simultaneous_multithreading)
|
|
|
- SMT refers to [simultaneous multithreading](https://en.wikipedia.org/wiki/Simultaneous_multithreading)
|
|
|
(also known as "hyperthreading"). SMT is currently disabled on all machines.
|
|
|
- eDRAM refers to the Embedded DRAM in the Skylake-H CPU, a memory side cache shared between CPU
|
|
|
and GPU, cf.
|
|
|
[https://en.wikichip.org/wiki/intel/microarchitectures/skylake_(client)#eDRAM_architectural_changes](https://en.wikichip.org/wiki/intel/microarchitectures/skylake_(client)#eDRAM_architectural_changes).
|
|
|
- HBM refers to the configurable high-bandwidth memory available on the Knights Landing CPUs, cf.
|
|
|
[https://colfaxresearch.com/knl-mcdram/](https://colfaxresearch.com/knl-mcdram/).
|
|
|
- eDRAM refers to the
|
|
|
[Embedded DRAM](https://en.wikichip.org/wiki/intel/microarchitectures/skylake_(client)#eDRAM_architectural_changes)
|
|
|
in the Skylake-H CPU, a memory side cache shared between CPU and GPU.
|
|
|
- HBM refers to the [configurable high-bandwidth MCDRAM](https://colfaxresearch.com/knl-mcdram/)
|
|
|
available on the Knights Landing CPUs.
|
|
|
|
|
|
|
|
|
## Peak system bandwidth, theoretical
|
... | ... | @@ -117,7 +117,7 @@ This wiki page gives an overview of the various server machines offered by the A |
|
|
Landing CPUs have an arithmetic unit that either serves as two AVX2 pipelines or
|
|
|
as one AVX-512 pipeline. Xeon Gold, Xeon Platinum, and Knights Landing CPUs have
|
|
|
an additional arithmetic unit solely for AVX-512 instructions. All Skylake and
|
|
|
Knights Landing can compute a fused multiplication and addition in one cycle.
|
|
|
Knights Landing CPUs can compute a fused multiplication and addition in one cycle.
|
|
|
|
|
|
|
|
|
## Peak system bandwidth, measured
|
... | ... | |