Multi Thread Efficiency - D-Flow Flexible Mesh - Delft3D
intro story D-Flow FM
D-Flow Flexible MeshD-Flow Flexible Mesh (D-Flow FM) is the new software engine for hydrodynamical simulations on unstructured grids in 1D-2D-3D. Together with the familiar curvilinear meshes from Delft3D 4, the unstructured grid can consist of triangles, pentagons (etc.) and 1D channel networks, all in one single mesh. It combines proven technology from the hydrodynamic engines of Delft3D 4 and SOBEK 2 and adds flexible administration, resulting in:
An overview of the current developments can be found here. The D-Flow FM - team would be delighted if you would participate in discussions on the generation of meshes, the specification of boundary conditions, the running of computations, and all kinds of other relevant topics. Feel free to share your smart questions and/or brilliant solutions!
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Multi Thread Efficiency
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Christopher Esposito, modified 7 Years ago.
Multi Thread Efficiency
Padawan Posts: 35 Join Date: 10/16/12 Recent Posts 00
Hi all,
When I run my simulations in parallel (on windows7x64), I often run into a situation where one thread seems to be limiting the rest. In the current case (see attachecd image) I am running with six threads. One thread is at 12% (approximately a full core) but the other five are at near 5%.
I had thought that FLOW tried to distribute the active cells equally, but that doesn't seem to be happening here. Is there anything that I can do so that I am using all six cores to capacity?
-Chris
When I run my simulations in parallel (on windows7x64), I often run into a situation where one thread seems to be limiting the rest. In the current case (see attachecd image) I am running with six threads. One thread is at 12% (approximately a full core) but the other five are at near 5%.
I had thought that FLOW tried to distribute the active cells equally, but that doesn't seem to be happening here. Is there anything that I can do so that I am using all six cores to capacity?
-Chris
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Adri Mourits, modified 7 Years ago.
RE: Multi Thread Efficiency
Yoda Posts: 1221 Join Date: 1/3/11 Recent Posts 00