Revision as of 16:49, 7 January 2021 view source Pavlina Monhartova (talk \| contribs) Bureaucrats, Administrators 5,368 edits →How much faster is TUFLOW HPC comparing to Classic? ← Older edit		Revision as of 17:01, 7 January 2021 view source Pavlina Monhartova (talk \| contribs) Bureaucrats, Administrators 5,368 edits →How much faster is TUFLOW HPC comparing to Classic? Newer edit →
Line 56: * The CME%, which is an excellent indicator that the Classic 2D solver is numerically converging, is not generally of use for HPC, which is volume conserving and effectively 0% subject to numerical precision. Non-zero whole of model CME% for HPC 1D/2D linked models is usually an indication of either the 1D and 2D adaptive timesteps being significantly different, or a poorly configured 1D/2D link. = How much faster is TUFLOW HPC ~~comparing~~compared to Classic? = This is largely based on hardware that is used to run HPC models (CPU and GPU) and its performance. On average, HPC using GPU hardware runs about 10 to 20 times faster than Classic and about 30 to 40 times faster than HPC using ~~CPU~~the ~~with~~default number ~~two~~of CPU threads ~~(current default is 4)~~. Even though HPC using CPU hardware is inwith default ~~general~~settings slower than Classic, more CPU threads can be used to achieve faster run times. As TUFLOW Classic is not parallelised it can only run on one CPU thread and the runtime cannot be further improved even with ~~available~~more CPU resources.<br> For further information and discussion see: [[Hardware_Benchmarking_Topic_HPC_on_CPU_vs_GPU \| Hardware Benchmarking Topic HPC on CPU vs GPU]]

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