Flood Modeller Tutorial Module01: Difference between revisions
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For a complete introduction to the different options, [http://wiki.tuflow.com/index.php?title=Tutorial_Module01#Viewing_Results refer to Tutorial Module 1]. <br>
<br>
=TUFLOW HPC=
To run the linked TUFLOW-Flood Modeller Pro model using HPC we simply need to add a single line to the Tuflow Control File. The HPC solver will only speed up the 2D calculations within the linked 1D-2D model, it will not speed up the 1D calculations that take place in the Flood Modeller Engine.
The relatively small nature of this specific model means that use of HPC on multiple CPU cores may not lead to significant improvements to model run times. However, should the machine have an NVIDIA GPU card present then it is possible to run the HPC solver on the GPU to significantly improve model runs times. The larger the 2D domain, the more significant the improvements to model run times through the use of the HPC solver.
To utilise the HPC solver:-
<ol>
<li> Save the TUFLOW runfile ( <b>FMT_M01_001.tcf</b>) as <b>FMT_M01_002.tcf</b>.</li>
<li> Add the following command to the TCF file:
:<font color="blue"><tt> Solution Scheme </tt></font> <font color="red"><tt>== </tt></font>HPC <font color="green"><tt>! Use HPC solver to run the simulation</tt></font>
<li> If you have a CUDA enabled NVIDIA GPU device, you can also add the following command to run the HPC solver using GPU hardware:
:<font color="blue"><tt> Hardware </tt></font> <font color="red"><tt>== </tt></font>GPU <font color="green"><tt>! Run HPC solver on GPU</tt></font>
<li> Save the TCF file and run the model.Troubleshooting for GPU Simulation
</ol>
===Troubleshooting for GPU Simulation===
If you receive the following error when trying to run the TUFLOW HPC model using GPU hardware:
<pre>TUFLOW GPU: Interrogating CUDA enabled GPUs …
TUFLOW GPU: Error: Non-CUDA Success Code returned
</pre>
or
<pre>ERROR 2785 - No GPU devices found, enabled or compatible.
</pre>
Please try the following steps:
<ol>
<li> Check if your GPU card is an NVIDIA GPU card. Currently, TUFLOW does not run on AMD type GPU.
<li> Check if your NVIDIA GPU card is CUDA enabled and whether the latest drivers are installed. Please see <u>[[GPU_Setup | GPU Setup]]</u>.
</ol>
<br>
If you experience an issue that is not detailed above please send an email to support@tuflow.com<br>
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