Cambricon MLU270-F Series Manual de usuario
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
MLU270-F Series Intelligent Processing
Card User Manual
V0.9
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
Revision History
Document Name
MLU270-F Series Intelligent Processing Card User Manual
Revision
V0.9
Created Date
2019.07.03
Revision History
No.
Date
Version
Notes
0
2019.07.03
V0.9
First Release
1
2
3
4
5
Technical supports contact: service@cambricon.com
www.cambricon.com
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
Content
1. Product Brief...................................................................................................................................4
2. Product specifications................................................................................................................... 5
2.1 Performance specifications.................................................................................................5
2.2 Software specifications........................................................................................................5
2.3 Operating Environment...................................................................................................... 7
2.4 Mechanical Specifications...................................................................................................7
2.5 Package Size and Weight................................................................................................... 8
2.6 Thermal Specifications........................................................................................................ 8
2.7 Power Supplies Specifications............................................................................................9
3. Cambricon NeuWare Development Environment................................................................... 11
4. Compliance.................................................................................................................................. 12
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
1. Product Brief
Figure.1 MLU270-F Series Intelligent Processing Card appearance
Specially designed MLU270-F series dedicated to AI inferences and data center
accelerations with high EER (Energy Efficiency Rate)
The SIYUAN 270 ASIC has been designed based on several innovative technologies in
the architecture of processors owned by Cambricon. Along with it, many up-to-date
features have been integrated into a standard FHFL PCIe card, which can be inserted into a
modern AI PC/server so as to provide a huge extension of calculation power of AI inferences.
MLU270-F series has a moderate TDP of 150W and it can provide a calculation power as
high as 4 times of the previous generation. It can be widely used in applications such as
vision, voice, natural language processing, legacy machine learning, and many other AI
scenarios, and it can be used in an AI inferences platform to make it work with even higher
EER.
Brand-new Cambricon MLUv02 Architecture
The MLUv02 architecture is not just a simple update from previous generation, but a
brand new design based on NOC (Network on Chip), which will guarantee the parallel
efficiency of execution of 16 NPU cluster within the SIYUN 270 ASIC. The dataflow will be
compressed within the chip by dedicated hardware engine and this will increase the volume
and bandwidth effectively. The new architecture can fully support all the AI accuracies such
as INT16, INT8, INT4, FP32, FP16, and provide necessary calculation power to many kinds of
Neural Network. In a word, the new architecture can provide both good universality and best
performances to customers at the same time.
One more step on the performances of inferences
When using INT8 accuracy for AI inference calculations, the performance of non-sparse
networks is improved up to 4 times as much as that of the previous generation. MLU270-F
series can provide a great EER as high as 40 times of a normal CPU. There are embedded
newly designed code/decode hardware for videos and pictures, so when the system have to
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
handle this kind of tasks, MLU270-F series will decrease the load of CPU and the occupation
for PCIe bandwidth, so as to increase the performances even more.
Calculating flexibility and programmability
SIYUAN 270 ASIC can provide supports to many kinds of Neural Networks. Cambricon
NeuWare software stack can easily deploy inference environment.BANG Lang.CHENG
environment can be directly customized for computing resources ，meeting all kinds of AI
customization requirements,professional but not specialized.
2. Product specifications
2.1 Performance specifications
Table 1 MLU270-F Series Intelligent Processing Card Hardware Specifications
Card Type
MLU270-F4/F5/F4K/F5K
Processor Architecture
Cambricon MLUv02
Core Clock
MLU270-F4/F5:1 GHz,
MLU270-F4K/F5K:1.2 GHz
Peak INT8
MLU270-F4/F5:128 TOPS（Dense）,
MLU270-F4K/F5K:160 TOPS（Dense）
Calculation accuracy
INT16, INT8, INT4, FP32, FP16
Video Decoding Support
Yes
Total Memory Size
MLU270-F4/F4K:16GB,
MLU270-F5/F5K:32GB
Memory Bus Width
256-bit
Memory Bandwidth
102.4 GB/s
System Interfaces
PCI Express Gen3, x16, Supporting Lane Reversal
PCIe ID
PCIe Vendor ID 0xCABC
PCIe Device ID 0x0270
PCIe Sub-Vendor ID 0xCABC
PCIe Sub-System ID 0x0018/0x0019
Outline
267mm*111.15mm, Double slots
TDP
150W
ECC Supporting
Yes
Heat Dissipation
Passive
2.2 Software specifications
Table 2 MLU270-F Series Intelligent Processing Card Software Specifications
PCIe Base address
PF （1，64bit）:
BAR0: 256MB prefetchable
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
BAR2: 64MB prefetchable
BAR4: 64MB prefetchable
VF（4，64bit）：
BAR0: 256MB prefetchable
BAR2: 64MB prefetchable
BAR4: 64MB prefetchable
SMBus（8bit Address）
0x8E(write） 0x8F（read）
SMBUS Register is 32-bit wide, and below describes how to read a register（S:Slave，M:Master）：
Table 3 SMBUS Registers Reading
Direction
Bits
Content
MS
1
START
MS
8
SLAVE ADDRESS（Write）
SM
1
ACK
MS
8
REGISTER ADDRESS
SM
1
ACK
MS
1
RE START
MS
8
SLAVE ADDRESS（Read）
SM
1
ACK
SM
8
DATA[7:0]
MS
1
ACK
SM
8
DATA[15:8]
MS
1
ACK
SM
8
DATA[23:16]
MS
1
ACK
SM
8
DATA[31:24]
MS
1
NACK
MS
1
STOP
Table 4 SMBUS Registers Description
Registers
Address
ACCESS
Description
Total Card Power
0x01
RO
Card Power consumption, Float Data, Unit W
Card Temperature
0x02
RO
Card Temperature, Float Data, Unit ℃
Chip Temperature
0x03
RO
Chip Temperature, Float Data, Unit ℃
power brake
0x05
WO
The main frequency is reduced to 25% of current
frequency when write 0x04,and restore to
pre-frequency when write 0x01
PCIE Vendor ID
and Device ID
0xA0
RO
[15:0] Vendor ID：0xCABC
[31:16] Device ID：0x0270
PCIE Sub-Vendor
ID and Sub-System
0xA1
RO
[15:0] Sub-Vendor ID：0xCABC
[31:16] Sub-System ID：for example 0x0018
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
2.3 Operating Environment
Table 5 MLU270-F Series Intelligent Processing Card Working Environment
Operating Temperature
0℃～45°C
Storage Temperature
-40℃～75℃
Operating Humidity
5%—95% Relative Humidity
Storage Humidity
5%—95% Relative Humidity
2.4 Mechanical Specifications
ID
Device Name
0xF0
RO
Display device type，e.g 0X18 means device type is
F4
Vendor Name
0xF1
RO
Display vendor name
Hardware vision
0xF2
RO
Display hardware vision
Firmware Revision
0xF3
RO
Display Firmware Revision，e.g 0x02180016 means
the main chip version is 0x02,device type is
0x18,main version is 0x00,subversion is 0x1,patch
number is 0x6
Manufacturing Time
0xF4
RO
Dispaly manufacturing time,e.g 0x1811 means
manufactured in 2018.11
Device ID
0xF5
RO
Display Device ID，e.g 0x20023 means device id is
20023
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
Figure. 2 MLU270-F Series Intelligent Processing Card Dimensions
2.5 Package Size and Weight
Table 6 MLU270-F Series Package Size and Weight
Type
Weight
Size
Notes
Single Card
874g
267mm*111.15mm*37.10mm
NA
Gift package
with single
card
1.4kg
385mm*230mm*97mm
Including gift
package,MLU270-F series
card,expand stent,8-pin
dongle cable,PE bag,desiccant
Gift Box
9.3kg
600mm*400mm*253mm
6 gift packages each box
Notes：The weight is a measured value with a tolerance of +-10%
2.6 Thermal Specifications
2.6.1 MLU270-F Series Power and Temperature specifications
Table 7 MLU270-F Series Thermal Design specifications
Item
Parameters
TDP(Thermal Design Power)
150W
Recommended Operating Tj
0-85℃
Slowdown Tj
87℃
Slowdown Rate
50%
Shutdown Tj
95℃
2.6.2 MLU270-F Series Airflow Directions Requirement
MLU270-F Series use a blower to cool the card，the airflow direction is shown below：
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
F
Figure.3 MLU270-F Series Airflow direction
2.7 Power Supplies Specifications
MLU270-F Series Intelligent Processing Card provides a 8-Pin Power Connector as below：
Figure.4 8-Pin Power supply Connector
Cambricon Technologies, MLU270-F Series Intelligent Processing Card User Manual
Table8 Supported Auxiliary Power Connections
Users can use the CPU 8-Pin Power Socket within a Server directly, or use two 8-pin PCIe
Power Sockets, along with a One-To-Two Adapter Cable.
Table9 Adapter Cable Connections
Figure.5 Adapter Cable
Note: The first pin (Pin No.1) of every connector/socket should have obviously distinguishable
mark at the side.
Board Connector
Cable used
CPU 8-Pin
1× CPU 8-pin cable
CPU to PCIe 8-Pin Dongle Cable
2× PCIe 8-pin cable
2× PCIe 6-pin cable
1× PCIe 8-pin cable and 1× PCIe 6-pin cable
8-Pin CPU Power
connector
PCIe 8-Pin Socket 1
PCIe 8-Pin Socket 2
Colour
12V
5
3
Yellow
12V
6
1,2
Yellow
12V
7
3
Yellow
12V
8
1,2
Yellow
GND
1
7,8
Black
GND
2
5,6
Black
GND
3
7,8
Black
GND
4
5,6
Black
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