Difference between revisions of "intel/xeon platinum/8158"

Revision as of 01:03, 24 November 2017

Template:mpu Xeon Platinum 8158 is a 64-bit dodeca-core x86 multi-socket highest performance server microprocessor introduced by Intel in mid-2017. This chip supports up to 8-way multiprocessing. The Platinum 8158, which is based on the server configuration of the Skylake microarchitecture and is manufactured on a 14 nm+ process, sports 2 AVX-512 FMA units as well as three Ultra Path Interconnect links. This microprocessor, which operates at 3 GHz with a TDP of 150 W and a turbo boost frequency of up to 3.7 GHz, supports up 768 GiB of hexa-channel DDR4-2666 ECC memory.

Cache

Main article: Skylake § Cache

The Xeon Platinum 8158 features a considerably larger non-default 24.75 MiB of L3, a size that would normally be found on an 18-core part.

[Edit/Modify Cache Info]

Cache Organization

Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory.

The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC.

Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies.

Note: All units are in kibibytes and mebibytes.

L1$

768 KiB

786,432 B
0.75 MiB

L1I$	384 KiB 393,216 B 0.375 MiB	12x32 KiB	8-way set associative
L1D$	384 KiB 393,216 B 0.375 MiB	12x32 KiB	8-way set associative	write-back

L2$

12 MiB

12,288 KiB
12,582,912 B
0.0117 GiB

		12x1 MiB	16-way set associative	write-back

L3$

24.75 MiB

25,344 KiB
25,952,256 B
0.0242 GiB

		18x1.375 MiB	11-way set associative	write-back

Memory controller

[Edit/Modify Memory Info]

Integrated Memory Controller

Max Type	DDR4-2666
Supports ECC	Yes
Max Mem	768 GiB
Controllers	2
Channels	6
Max Bandwidth	119.21 GiB/s 122,071.04 MiB/s 128.001 GB/s 128,000.763 MB/s 0.116 TiB/s 0.128 TB/s
Bandwidth	Single 19.87 GiB/s Double 39.74 GiB/s Quad 79.47 GiB/s Hexa 119.21 GiB/s

Expansions

[Edit/Modify Expansions Info]

Expansion Options

PCIe

Revision	3.0
Max Lanes	48
Configs	x16, x8, x4

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX	MMX Extension
EMMX	Extended MMX Extension
SSE	Streaming SIMD Extensions
SSE2	Streaming SIMD Extensions 2
SSE3	Streaming SIMD Extensions 3
SSSE3	Supplemental SSE3
SSE4.1	Streaming SIMD Extensions 4.1
SSE4.2	Streaming SIMD Extensions 4.2
AVX	Advanced Vector Extensions
AVX2	Advanced Vector Extensions 2
AVX-512	Advanced Vector 512-bit
AVX512F	AVX-512 Foundation
AVX512CD	AVX-512 Conflict Detection
AVX512BW	AVX-512 Byte and Word
AVX512DQ	AVX-512 Doubleword and Quadword Instructions
AVX512VL	AVX-512 Vector Length
ABM	Advanced Bit Manipulation
BMI1	Bit Manipulation Instruction Set 1
BMI2	Bit Manipulation Instruction Set 2
FMA3	3-Operand Fused-Multiply-Add
AES	AES Encryption Instructions
RdRand	Hardware RNG
ADX	Multi-Precision Add-Carry
CLMUL	Carry-less Multiplication Extension
F16C	16-bit Floating Point Conversion

x86-16	16-bit x86
x86-32	32-bit x86
x86-64	64-bit x86
Real	Real Mode
Protected	Protected Mode
SMM	System Management Mode
FPU	Integrated x87 FPU
NX	No-eXecute
HT	Hyper-Threading
TBT 2.0	Turbo Boost Technology 2.0
EIST	Enhanced SpeedStep Technology
SST	Speed Shift Technology
TXT	Trusted Execution Technology (SMX)
vPro	Intel vPro
VT-x	VT-x (Virtualization)
VT-d	VT-d (I/O MMU virtualization)
EPT	Extended Page Tables (SLAT)
TSX	Transactional Synchronization Extensions
VMD	Volume Management Device
NM	Node Manager
KPT	Key Protection Technology
PTT	Platform Trust Technology
Run Sure	Run Sure Technology (RAS Capability)
MBE Ctrl	Mode-Based Execute Control
Node Ctrlr	Node Controller Support

Frequencies

See also: Intel's CPU Frequency Behavior

[Modify Frequency Info]

Mode	Base	Turbo Frequency/Active Cores
Mode	Base	1	2	3	4	5	6	7	8	9	10	11	12
Normal	3,000 MHz	3,700 MHz	3,700 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz	3,600 MHz
AVX2	2,600 MHz	3,600 MHz	3,600 MHz	3,400 MHz	3,400 MHz	3,300 MHz	3,300 MHz	3,300 MHz	3,300 MHz	3,300 MHz	3,300 MHz	3,300 MHz	3,300 MHz
AVX512	2,100 MHz	3,500 MHz	3,500 MHz	3,300 MHz	3,300 MHz	3,100 MHz	3,100 MHz	3,100 MHz	3,100 MHz	2,700 MHz	2,700 MHz	2,700 MHz	2,700 MHz

Benchmarks

[Edit Benchmarks]

@@ Line 237: / Line 237: @@
 |SPECrate2017_fp_base=165
 |SPECrate2017_fp_peak=168
+}}
+{{benchmark entry
+|type=spec
+|test_link=https://www.spec.org/cpu2017/results/res2017q4/cpu2017-20171031-00400.html
+|test_timestamp=2017-10-27 23:38:28-0400
+|chip_count=4
+|core_count=48
+|copies_count=96
+|vendor=Cisco Systems
+|system=Cisco UCS C480 M5 (Intel Xeon Platinum 8158, 3.00GHz)
+|SPECrate2017_fp_base=325
+|SPECrate2017_fp_peak=332
 }}
 }}
 [[Category:microprocessor models by intel based on skylake extreme core count die]]

Has subobject "Has subobject" is a predefined property representing a container construct and is provided by Semantic MediaWiki.	Xeon Platinum 8158 - Intel#io +
has advanced vector extensions	true +
has advanced vector extensions 2	true +
has advanced vector extensions 512	true +
has ecc memory support	true +
has extended page tables support	true +
has feature	Advanced Vector Extensions +, Advanced Vector Extensions 2 +, Advanced Vector Extensions 512 +, Advanced Encryption Standard Instruction Set Extension +, Hyper-Threading Technology +, Turbo Boost Technology 2.0 +, Enhanced SpeedStep Technology +, Speed Shift Technology +, Trusted Execution Technology +, Intel vPro Technology +, Intel VT-x +, Intel VT-d +, Extended Page Tables + and Transactional Synchronization Extensions +
has intel enhanced speedstep technology	true +
has intel speed shift technology	true +
has intel trusted execution technology	true +
has intel turbo boost technology 2 0	true +
has intel vpro technology	true +
has intel vt-d technology	true +
has intel vt-x technology	true +
has second level address translation support	true +
has simultaneous multithreading	true +
has transactional synchronization extensions	true +
has x86 advanced encryption standard instruction set extension	true +
l1$ size	768 KiB (786,432 B, 0.75 MiB) +
l1d$ description	8-way set associative +
l1d$ size	384 KiB (393,216 B, 0.375 MiB) +
l1i$ description	8-way set associative +
l1i$ size	384 KiB (393,216 B, 0.375 MiB) +
l2$ description	16-way set associative +
l2$ size	12 MiB (12,288 KiB, 12,582,912 B, 0.0117 GiB) +
l3$ description	11-way set associative +
l3$ size	24.75 MiB (25,344 KiB, 25,952,256 B, 0.0242 GiB) +
max memory bandwidth	119.21 GiB/s (122,071.04 MiB/s, 128.001 GB/s, 128,000.763 MB/s, 0.116 TiB/s, 0.128 TB/s) +
max memory channels	6 +
max pcie lanes	48 +
supported memory type	DDR4-2666 +

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