From: John P. <pet...@cf...> - 2007-11-17 10:19:00
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Hi, I haven't had a chance to look into this closely yet, but I just wanted to post something here so I would remember to. In writing out some relatively large (36x36x36 Hex27's) meshes recently, mesh.write() apparently took 1268 seconds!! Here's a snippet from my perflog ------------------------------------------------------------------------------- | libMesh Performance: Alive time=8709.32, Active time=8688.84 | ------------------------------------------------------------------------------- | Event nCalls Total Avg Percent of | | Time Time Active Time | |-------------------------------------------------------------------------------| Mesh find_neighbors() 1 0.2393 0.239272 0.00 read() 1 4.0291 4.029120 0.05 renumber_nodes_and_elem() 1 0.0357 0.035666 0.00 write() 1 1268.9452 1268.945238 14.60 I guess it could have been a disk I/O issue, I also wrote out a corresponding solution and GMV file, however those were not logged. -John |