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Difference between revisions of "intel/microarchitectures/knights landing"
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(KNL has 76, not 72 cores (check die shot to verify))
Line 44: Line 44:
 
* [[14 nm process]]
 
* [[14 nm process]]
 
* 682.6 mm² die size
 
* 682.6 mm² die size
* 72 CPU cores
+
* 76 CPU cores (sold with maximum 72 enabled cores)
 
* 7,100,000,000 transistors
 
* 7,100,000,000 transistors
  
 
[[File:intel xeon phi knightslanding die shot .jpeg|650px]]
 
[[File:intel xeon phi knightslanding die shot .jpeg|650px]]

Revision as of 12:56, 9 April 2018

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

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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) +