Large Scale DSO Job Outputs
A large-scale-DSO analysis does not support the output of full parametric results. Instead, it extracts 'subset' results using predefined rectangular plots, which are created by the user before job is run. The extracted columns of data are saved as CSV files. Typically, there is one CSV file per-trace, per-variation. (Note: Non-Rectangular plots of the design (for e.g. statistical eye, digital plot) are not extracted). The outputs can be either imported as datasets for post-processing in the Desktop also as function of parametric variations, or used directly in downstream applications (for example, Excel, or custom programs that parse .csv files).
CSV File Contents
The initial header rows of CSV file define the solved variation. For each such row, the first column has variable name and the second column has variable's value. The row following variation rows has the name of primary sweep and the name(s) of extracted quantities. Subsequent rows contain 'data' - quantity values as a function of primary sweep. Below examples provide a context for the CSV file contents:
- Traces of S-parameter report: The data portion of CSV file has two columns of data: first column has Freq values and the second column has values for trace's s-parameter component
- Trace of a far field report: Suppose there is a farfield report with a trace ('magrE'), whose primary sweep is 'phi' and secondary sweep is 'theta'. Further suppose that two values of 'theta' are chosen and 'all' values of 'phi' are chosen. For this trace, the data portion of CSV file contains three columns of data: the first column has phi values, the second column has magrE values for the first value of theta, the third column has magrE values for second value of theta. The magrE output columns are titled as 'magrE_crv1', 'magrE_crv2' respectively
- (Advanced) 'Special' sweeps: In the case of a trace with 'special' primary sweep (such as the trace of a time domain quantity), one CSV file is created per curve of trace, per variation. These CSV files always have two columns, irrespective of the number of values chosen for secondary/higher sweeps.