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jorth

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About jorth

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  1. Hi, I was hoping to model the effects of an embankment failing using the GPU Solver. When I run the model, it appears that it can read the vzsh file. However, within the tlf file the following line shows up: WARNING 2320 - GPU Solver ignoring Read GIS Variable Z Shape commands. Also, a vzsh check file is not created. Am I doing something wrong or is vzsh not supported by the GPU Solver at this time? If not is there hope for this function anytime soon? Thanks, Julian
  2. I have done a little test to see how the 64-bit version compares to the 32-bit version on a recent job. I compared run times and water level heights for the 32-bit single and double precision and the 64-bit double precision executables (64-bit single precision was not supplied). The model contained a road crossing that was represented by a z tin with a 1D culvert embeded through it. The 64-bit double precision run time of 1 hr 31 mins was about 10% faster than its 32-bit double precision counterpart of 1 hr 42 mins. The 32-bit single precision took 1 hr 28 mins. Water levels were recorded at PO points located at the following locations: - Reporting location 1 (RP1) at the upstream boundary of the model within the channel; - Reporting Location 2 (RP2) upstream of the road crossing and culvert on the left flood plain; - Reporting Location 3 (RP3) downstream of the road crossing and culvert within the channel; - Reporting Location 4 (RP4) at the downstream boundary of the model within the channel. I have also shown a plot of the flow through the culvert (the crossing is eventually drowned out). The 64-bit version water level upstream of the crossing (RP1 and RP2) were higher, while the water levels downstream of the crossing were generally lower (RP3 and RP4). I think the reason for the difference was because the z tin generation of the road crossing in the 64-bit version did not work properly. As a result, the road is causing a greater afflux in the 64-bit version. Thanks for letting us use the 64-bit version. Looking forward to the shorter run times in the future. Cheers Julian
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