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Access mesh data/fluid properties in parallel computing |
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November 12, 2020, 21:01 |
Access mesh data/fluid properties in parallel computing
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#1 |
New Member
chen yu Huang
Join Date: Nov 2019
Posts: 18
Rep Power: 6 |
Hello,
I try run my case by parallel computing in OpenFOAM. Velocity of some cells will be specified in my case. For example: I have 10 mesh cells, 0 1 2 3 4 5 6 7 8 9 and I divide it into 2 region region 1 contains 0 1 2 3 4 and 5 6 7 8 9 belong to region 2 In each time step I have to read velocity of cell 1 and cell 7 and specify a new value for them. My question is, does "scatter/gather" achieve my purpose? And my second question is: Is mesh data also decomposed? Could I access mesh data like serial computing? Thank you and I will appreciate if you could provide me some useful information or literature. |
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November 13, 2020, 09:43 |
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#2 |
Senior Member
Mark Olesen
Join Date: Mar 2009
Location: https://olesenm.github.io/
Posts: 1,679
Rep Power: 40 |
The mesh is decomposed. So each processor has local cell numbers starting at zero.
I think you will need more help than you can reasonably expect on via the forum, since there are many details. |
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November 24, 2020, 21:04 |
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#3 |
New Member
chen yu Huang
Join Date: Nov 2019
Posts: 18
Rep Power: 6 |
Hello,
Thank you for your reply. I have found some interesting example and I will try to figure out. |
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