From WikiChip
Knights Landing - Microarchitectures - Intel
< intel‎ | microarchitectures
Revision as of 12:56, 9 April 2018 by 213.175.37.10 (talk) (KNL has 76, not 72 cores (check die shot to verify))

Edit Values
Knights Landing µarch
General Info
Arch TypeCPU
DesignerIntel
ManufacturerIntel
Process14 nm
Pipeline
TypeSuperscalar
OoOEYes
SpeculativeYes
Reg RenamingYes
Instructions
ISAx86-16, x86-32, x86-64
Succession
Contemporary
Knights Mill

Knights Landing (KNL) is the successor to Knights Corner, a 14 nm many-core microarchitecture designed by intel for high performance computing.

Process Technology

See also: Broadwell § Process Technology and 14 nm lithography process

Knights Landing is fabricated on Intel's 14 nm process.

Architecture

Key changes from Knights Corner

New text document.svg This section is empty; you can help add the missing info by editing this page.

New instructions

Knights Landing introduced a number of new instructions:

  • AVX-512, specifically:
    • AVX512F - AVX-512 Foundation
    • AVX512CD - AVX-512 Conflict Detection
    • AVX512PF - Prefetch instructions for gather/scatter
    • AVX512ER - Exponential and Reciprocal Instructions

Die

Die shot of intel xeon phi, Knights Landing.

  • 14 nm process
  • 682.6 mm² die size
  • 76 CPU cores (sold with maximum 72 enabled cores)
  • 7,100,000,000 transistors

intel xeon phi knightslanding die shot .jpeg

codenameKnights Landing +
designerIntel +
full page nameintel/microarchitectures/knights landing +
instance ofmicroarchitecture +
instruction set architecturex86-16 +, x86-32 + and x86-64 +
manufacturerIntel +
microarchitecture typeCPU +
nameKnights Landing +
process14 nm (0.014 μm, 1.4e-5 mm) +