# Cluster Computing

<mark style="color:yellow;background-color:yellow;">**Note：**</mark>

<mark style="color:yellow;background-color:yellow;">(1) Before performing cluster computing on multiple computers, please make sure that each computer is connected to same LAN and can connect each other. Each machine has read and write permission to other computers.</mark>

<mark style="color:yellow;background-color:yellow;">(2) Get3D Mapper software contains two modules:</mark> <mark style="color:yellow;background-color:yellow;"></mark><mark style="color:yellow;background-color:yellow;">**Get3D Mapper**</mark> <mark style="color:yellow;background-color:yellow;"></mark><mark style="color:yellow;background-color:yellow;">(UI for user to operate) and</mark> <mark style="color:yellow;background-color:yellow;"></mark><mark style="color:yellow;background-color:yellow;">**Get3D Engine**</mark> <mark style="color:yellow;background-color:yellow;"></mark><mark style="color:yellow;background-color:yellow;">runs at background (algorithms for automatic modeling).</mark>

## 1 Download & Installation

First, download and install Get3D Mapper on each computer.

The Get3D Mapper installation process will automatically accompany the installation of Get3D Engine.

## 2 Login Account & Activate License

After finishing the installation,

(1) Open the Get3D Mapper software on each of the computers,

(2) Log in to your account and activate the licence to each computer.

For more details on license activation, refer to the section [Newbie Guide > License Acquisition](broken://pages/yDVFuzUqyaKailkqs1lw#id-2-license-acquisition)

## 3 Start Engine

Start the engine on all computers:

Click **Setting>Engine Setting** in the menu bar.

Then click **Start Local Engine** to access the Get3D Engine interface.

<figure><img src="/files/VvtSlcUQmqS4UjZesmW5" alt=""><figcaption><p>Engine Setting</p></figcaption></figure>

<figure><img src="/files/VuYBzyKC4iN5z9n5rKXR" alt=""><figcaption><p>Start Local Engine</p></figcaption></figure>

## 4 Create Project

After obtaining license and starting the engine on all computers.

Select a computer as the master computer and create project.

Please set the project path to a **network path** that can be accessed by other computers. Subsequent operations can be completed on the project of this master computer.

<mark style="background-color:yellow;">**Note:**</mark>

<mark style="background-color:yellow;">All operations except</mark> <mark style="background-color:yellow;"></mark><mark style="background-color:yellow;">**Collaborative Marking Ground Control Points**</mark> <mark style="background-color:yellow;"></mark><mark style="background-color:yellow;">can be performed only on the main project of the master computer:</mark>

* <mark style="background-color:yellow;">Creation of the project；</mark>
* <mark style="background-color:yellow;">Import of the images；</mark>
* <mark style="background-color:yellow;">Positioning of the images；</mark>
* <mark style="background-color:yellow;">Submission of the Relative Orientation；</mark>
* <mark style="background-color:yellow;">Submission of the Absolute Orientation；</mark>
* <mark style="background-color:yellow;">Submission of Reconstruction (generation of the 3D mesh model).</mark>

<mark style="background-color:yellow;">Similarly, mobilizing the computational power of each engine node, managing the start or pause of the engine nodes, etc., can be done from a single engine interface.</mark>

For more details on create project, refer to the section [Newbie Guide > Create Project & Open Project](broken://pages/yDVFuzUqyaKailkqs1lw#id-3-create-project-and-open-project)

## 5 Set Job Queue Directory

After creating the project, set the job queue directory for project. Make sure the **Job Queue Directory** to be network path.

<mark style="background-color:yellow;">Note：</mark>

<mark style="background-color:yellow;">There are four paths in the cluster calculation that need to be network paths:</mark>

<mark style="background-color:yellow;">① 【Create & Open Project】  Project Path</mark>

<mark style="background-color:yellow;">② 【Job Queue Setting】 Job Queue Path (for both project and engine)</mark>

<mark style="background-color:yellow;">③ 【Import & Read Image】  Image Path</mark>

For more details on setting job queue, refer to the section [Newbie Guide > Job Queue & Engine Setting](broken://pages/yDVFuzUqyaKailkqs1lw#id-6-job-queue-and-engine-setting)

## 6 Import Data

For more details on importing images and positioning, refer to the section [Newbie Guide > Impot Image](broken://pages/yDVFuzUqyaKailkqs1lw#id-4-import-image), [Newbie Guide > Photo Positioning](broken://pages/yDVFuzUqyaKailkqs1lw#id-5-photo-positioning)

## 7 Submit Job & Distribute Engine Nodes

**Job submission:**&#x20;

After completing the image import and positioning, and correctly filling in the Camera Information (Sensor Size and Focal Length), click **Submit AT**.

**Distribute Engine Nodes:**

(1) **Open the engine interface**. In the Engine Information list, you can see the current state of the Engine (**Waiting, Running, Stop**).

<figure><img src="/files/ZMQrjUozzCSNRvYb4yO7" alt=""><figcaption><p>Get3D Engine Interface</p></figcaption></figure>

(2) Select all engines, right click and select **Modify Job Queue Directory**. Set all the engines to the job queue path where the main project submits the job.

<figure><img src="/files/A0wQTM4tz0ZuCxXZD7LE" alt=""><figcaption><p>Modify Job Queue Directory</p></figcaption></figure>

<figure><img src="/files/WrVS67TSv8hwJlpk6sxy" alt=""><figcaption><p>After Modification</p></figcaption></figure>

Once the job queue is set correctly, all engines will start running. You can view the number and status of the running engines either in the engine interface or in the [engine monitoring panel](/user-help-center/get3d-mapper/software-overview/get3d-engine.md#id-2-engine-monitoring-panel) of Get3D Mapper.


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