Installing Optima Micro

PTV Optima Micro combines PTV Optima and PTV Vissim, which is used as a microscopic simulation engine.

PTV Optima Micro:

provides forecasts for sub-networks, which are typically a smaller selection of the overall large-scale city or state wide macroscopic model of PTV Optima.
improves decision support in areas or for traffic management actions, for which the interaction between the behavior of individual vehicles and signal controllers is critical.
provides the right methodology and tool where and when you need it.

PTV Optima Micro handles the communication with Optima AS through the Optima Micro Message broker and runs micro-simulations with PTV Vissim in a distributed environment, according to the scheme shown in the figure:

In the table you can see a short outline of the server types:

Server	Description
Micro Message Broker	Used for fail-safe distributed communication, typically based on 3 virtual machines.
Micro Worker	Used to run fail-safe distributed micro-simulations, typically based on 6-40 virtual machines (depending on the specific project and server configuration).
Micro License Server	A physical server or an environment with Internet access (depending on the specific project).

All the servers of the environment are characterized by some common technical parameters:

Technical parameter	Description
CPU	CPU frequency: Minimum base clock 2.5 GHz. Sustained Turbo clock 3.4 GHz
Storage	Main attributes: Benefits from fast storage SSD Uncached disk throughput: 6400 IOPS 95 MBPs
Network	Main attributes: 2 NICs 1750 Mbps network bandwidth

Technical parameter

Description

CPU

CPU frequency:

Minimum base clock 2.5 GHz.
Sustained Turbo clock 3.4 GHz

Storage

Main attributes:

Benefits from fast storage SSD
Uncached disk throughput:
- 6400 IOPS
- 95 MBPs

Network

Main attributes:

2 NICs
1750 Mbps network bandwidth

The table shows the basic attributes to install Optima Micro:

Server	Specifications	Main Tasks	Components	Instances number
Optima	See → Installation scenarios.	Base components of the environment. API for Optima Micro.	(at least) Optima AS Optima DB Optima TRE	1
Optima Micro Message Broker	OS Linux Hardware 2 CPU 4GB RAM 20GB storage	Optima Micro communication and persistence.	Kafka Zookeeper JAVA	1 (not fail-safe). At least 3 provide fail-safe. Additional fail- safe is provided every odd number of instances (5, 7, 9 ...).
Optima Micro Worker	OS Windows Hardware 4 CPU 8GB RAM 50GB storage	Micro simulation requests. Result aggregation. Requires high fidelity of virtual environment.	.NET Framework PTV Vissim ptv-optima-micro.exe ptv-optima-scenecleaner.exe	12-40 for runtime and fail-safe reasons or 6-20 when doubling CPU and RAM. The exact number is agreed during the project stage.
Optima Micro License	OS Linux+GUI (or Windows) Hardware 1 CPU 4GB RAM 20GB storage	CodeMeter license server for PTV Vissim on Micro Worker. Must be a physical server.	CodeMeter User Runtime	1 2 for fail-safe.

Prerequisites

Before starting the installation of PTV Optima Micro, you must check a set of prerequisites:

→ Optima Micro prerequisites

Integration requisites

During the installation, you need to pay attention to some integration requirements:

→ Optima Micro integration requisites

Installation steps

The list shows the needed components for a proper Optima Micro installation:

Optima AS.
Optima DB.
Optima TRE.

Tip: PTV Optima Micro requires Optima modules. To learn more about Optima installation scenarios, please see → Installation scenarios.
Optima Micro Message Broker (OMMB).
Optima Micro License Server (OMLS).
Optima configuration updates.
Optima Micro Workers (OMW).

Running PTV Optima Micro

To start PTV Optima Micro, see → Starting Optima Micro.

Topics in this section