Changes between Version 15 and Version 16 of u/erica/ScalingBluestreak
- Timestamp:
- 02/23/14 20:07:18 (11 years ago)
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u/erica/ScalingBluestreak
v15 v16 21 21 22 22 23 == '''Frame / hour calculation:''' ==23 == '''Frames / hour calculation:''' == 24 24 25 The frame rate R in hour/frame is calculated as follows for the 32 node case. To get frames/hour, take the inverse R^-1^. ''This assumes the write time will be the same at the end of the normal dt frame rate.'' 25 Start with calculating the framerate R. Since my data is given in minutes, R naturally has units of mins/frame. Remember to subtract off the write-time before multiplying by 10, since we are interested in the computation time only for a full time step. We can add the write-time back afterward: 26 27 [[latex($R = (Total ~time - write ~time)*10 + write~time $)]] 28 29 So now we have a framerate in minutes/(full) frame. To convert to hours/frame, divide by 60, and to get to frames/hour, invert R. 26 30 27 31 '''32 Nodes Example''' 28 32 29 [[latex($R_{32} = (Total ~time - write ~time)*10 + write~time $)]] 30 31 To get in hours per frame, divide by 60: 33 An example of how to do this for the 32 node case is as follows, 32 34 33 35 [[latex($ R_{32} = [(33 - 1.9)*10 + 1.9 ]min\times \frac{1 ~hr}{60 ~min} = 5.2 ~\frac{hr}{frame} $)]] 36 37 To get frames/hour, take the inverse R^-1^. ''This assumes the write time will be the same at the end of the normal dt time step.'' 34 38 35 39 [[latex($ R^{-1}_{32} = 0.19 ~\frac{frames}{hour}$)]]