When should I use Flood Cloud?

You should use Flood Cloud when time is critical and you have lots of simulations to undertake. It’s also useful when you don’t have enough software licences and/or hardware resources. Flood Cloud enables you to rapidly run all your simulations at once.  


You can also use Flood Cloud to undertake more detailed analysis. With access to unlimited computing resources you can run many more simulations to help with model calibration, understand climate change impacts or improve designs.

What software can I run in Flood Cloud?

Flood Cloud allows you to run Flood Modeller 1D, 2D and 1D-2D linked models. It also enables you to run Flood Modeller (1D)-TUFLOW (2D) linked models, TUFLOW (Classic) only models and HEC-RAS models.

Flood Cloud provides access to Flood Modeller version 4.6, TUFLOW 2018 (Classic) and HEC-RAS 5.07 as standard.

We are developing Flood Cloud to enable you to run SWMM and provide you with the flexibility to select different software versions. 

What does Flood Cloud cost?

Flood Cloud is a pay as you go service. You are charged by the simulation hour. 

Request a price list for further information. 

What's included in the price?

Everything! Computing infrastructure, any specific software licencing (if applicable) and technical support. 

Are simulations run on the CPU or GPU?

Currently, simulations can only be run on a CPU. We will be providing GPU capabilities in the future.

What's the compute type used within Flood Cloud?

The default compute type is currently a 3.0 GHz Intel Xeon Platinum Processor, 4 CPU, 8GB memory machine. The option to choose even more powerful machines will be added in the future.

Who is providing the underlying cloud infrastructure?

We currently use Amazon Web Services. 

How do I access Flood Cloud?

First, install the Flood Cloud desktop application (see Downloads page). Contact our sales team to purchase credits. We will then provide you with a username and password. 

Within Flood Cloud, enter your login details, select which runs you wish to undertake, and press Run – it’s that simple! 

How many runs can I undertake at any one time?

Flood Cloud does not impose any restrictions. As long as you have credits in your account you can run as many simulations, at the same time, as you need to.

How secure is Flood Cloud?

Flood Cloud is extremely secure, is end-to-end encrypted, and leverages Amazon’s state of the art Web Services infrastructure. Flood Cloud protects cloud resources from unauthorized access, and from any un-intentional access to or destruction of user data. 

Each Flood Cloud user has their own private cloud-based file storage area, not accessible to any other users. Each execution takes place in a private directory on a cloud computing node. This directory cannot be accessed by any other cloud user and is destroyed when the model execution is completed. 

Amazon Web Services has achieved ISO 27001 certification of their Information Security Management System (ISMS) covering their infrastructure, data centres, and services including Amazon Elastic Compute Cloud (Amazon EC2), Amazon Simple Storage Service (Amazon S3) and Amazon Virtual Private Cloud (Amazon VPC). 

What model files will be stored within the 'cloud'?

This is for you to decide. You have control over what is stored on the cloud. You have access to an amount of persistent cloud storage for input files and results you want to keep in the cloud. Results can be download and saved once the run has taken place.

How much storage space is provided within Flood Cloud?

Flood Cloud provides 50GB of storage space per account. The storage space limit applies to model input data and not results. 

How will I know if there are any problems with the simulation?

Selected diagnostic information is streamed back to you in real-time in order to determine if a run is proceeding as expected or should be terminated and resubmitted to address an error. The returned data from a cloud simulation will contain all output and log files produced by the software.

Will I be able to stop a simulation once it has started?

Yes, you can terminate a run at any time.

Do all runs start simultaneously?

As soon as your model data files are uploaded, runs will start immediately. You have the option to run all the simulations simultaneously on different compute nodes or to queue your model simulations across multiple compute nodes.

What real-time updates will I receive during a simulation?

In the main Flood Cloud dashboard there are progress bars showing the status of each run that you have sent to Flood Cloud. In addition, in real time you can view the detailed runtime diagnostics for each run.