Design & Modeling Multi-core NUMA

simulator and protocols

Why simulator?Propose SolutionWhat is NUMA?ProblemsModeling processSimulation integrationDemo

Why simulator?

Propose Solution

Modeling & Design a tool that simulate Multi-core NUMA hardware and protocols

What is NUMA?

What is NUMA?

CPU 1

CPU 2

RAM 1

GPU 1GPU 2GPU 3

Problems

Software problems Mapping Scheduling

Hardware problems Fixed topologies So expensive Not customable

Modeling process

Define basic function

Core Functions

Load()

Compute()

Store()

Define basic function

Bank Memory Functions

Read()

Write()

Define basic function

Inter Connection Network

Functions Receive()

Send()

Hierarchical representation

Package diagram

Class diagram

Interface diagram

( example of second class)

( example of fixed parameter )

Whole model

local memory access

Remote memory access

Events based model

We have a model that is totally independent from simulator.

Core 1

BUS

LM

Simulator

Events based model

Core 1

BUS

LM

Simulation integration

Why existing simulator?

Because it has already a whole engine system from:

Entity object Simulation object Event manager object Queue

Also, a lots of functions: Cancel(); Start(); Suspends();

JAVASIM

Core 1

BUS

LM

JavaSim

Local Memory Access

Implementing INumaEventListner class

Mach

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tart

Gen

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Sta

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us

Sen

d r

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em

ory

Read d

ata

Pro

cess

requ

est

Sen

d r

esp

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o B

us

Sen

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ore

Pro

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resp

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Task 01

Mach

ine

Sto

p

Task 02

Task N

Expected Scenario

NUMA machine modelJavaSim

DEMO

https://github.com/NUMASimulator/NUMAModel

Thank you

abedmaatalla@gmail.com

@abed_maatalla