February 3, 2016, 08:10
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Write speed with CFX using 2 nodes and 1gbps ethernet
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#1
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Senior Member
Join Date: Mar 2009
Location: Norway
Posts: 137
Rep Power: 16
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CFD folks,
When doing larger simulation jobs in CFX, I usually use two HP nodes with 8 cores each, connected with gigabit ethernet. However, when finilizing a simulation, it takes "forever" to write the end result file. How can I best determine the bottleneck here?
I attach a screenshot of the network activity, where green is total data communication, yellow is sending, and red receiving data. Here it took more than 4 minutes to merge/write the file and finish up. Shouldn't it be quicker than that? End file is 5GB.
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