Unfortunately, it isn’t possible to use subzone loading with existing data files in industry-standard formats. As an added benefit, subzone loading requires a fraction of the memory required by traditional load-on-demand. For example, rather than needing to read an entire variable into memory to slice into a volume zone, at a potential cost of several minutes, we can now read the only the cells the slice cuts through in a few seconds.
By dividing each zone into subzones and arranging the data for easy access by spatial location, we can substantially reduce the amount of data that needs to be read for any given operation and easily locate the data we do need.
Subzone loading is the next evolution of this concept. If you did need all the data in the file displayed at once, you wouldn’t notice any benefit, but more common use cases saw a great improvement in performance. If you never needed a particular variable, Tecplot 360 wouldn’t waste time or memory on it. In the past, Tecplot 360 has supported load-on-demand for several popular CFD file formats, which reduces perceived loading time by loading a given variable in a particular zone only when it is needed for a plot. The subzone loadable format employs the second approach. SZL technology can help improve performance when loading, visualizing and analyzing simulation results. And continually chasing the absolutely fastest hardware is very expensive.
Next year’s hardware will certainly be faster, but next year’s data will just as surely be even bigger. Unfortunately, this approach only gets us so far the ever-increasing size of simulation data is clearly swamping even the fastest of today’s processors, memory, and storage when it comes time to visualize the results. The first approach relies on the giants of the computer industry to continue advancing the state of the art. Figure out a way to load a lot less data for most operations.Significantly increase the performance of the computer system, particularly its storage.When faced with the task of making large data files load faster, two possible solutions come to mind: szplt) to address the needs of customers who are visualizing large data files, improving interactive performance, and simultaneously reducing memory requirements. Tecplot 360 introduced a new data file format called SZL or subzone loadable (filename extension. « Back Converting Your Data Files to Tecplot Subzone Loadable Format TecIO and SZL, Tecplot 360, Tecplot Blog October 28, 2014Īs the years go by, more and more engineers and scientists are working with files containing hundreds of millions of cells, with billions on the horizon.
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