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Configuration settings consist of a number of persistent global options as well as the locations for installed model libraries.
When the simulator is run in GUI mode, its configuration settings are controlled by the front end and stored wherever the front end's settings are stored. See the User's Manual for more details.
The settings when run in non-GUI mode are stored in a configuration file which in fact defaults to the same location as the default location for the front end's settings. You can change this location using the /config switch detailed in Running in non-GUI Mode.
The format of the configuration file is:
[Options] |
option_settings |
[Models] |
model_libraries |
Where:
option_settings | These are of the form name=value and specify a number of global settings. Boolean values are of the form name= without a value. If the entry is present it is TRUE if absent it is FALSE. Available global settings are detailed below. |
model_libraries | A list of entries specifying search locations for model libraries. These are of the form name=value where name is a string and value is a search location. The string used for name is arbitrary but must be unique. Entries are sorted alphabetically according to the name and used to determine the search order. value is a path name and may contain wildcards (i.e. '*' and '?'). |
Name | Type | Default | Description |
---|---|---|---|
NoStopOnUnknownParam | String | WARN |
Specifies action to be taken in the event of an unknown parameter being encountered in a .MODEL statement. Choices are:
TRUE: No action taken, simulation continues normally FALSE: An error will be raised and the simulation will abort WARN: A warning will be displayed but the simulation will continue This will be overridden by a .OPTIONS setting of the same name. See the List of Simulator Options. |
MaxVectorBufferSize | Numeric | 32760 | See Data Buffering. |
TotalVectorBufferSize | Numeric | Available RAM/10 | See Data Buffering. |
TempDataDir | String | %STARTDIR% | Location of temporary binary data file if data_file is not specified on command line |
LibraryDiagnostics | String | Full | Controls output of messages relating to model library search. Specify None to disable |
The simulator buffers data before writing it to disk. By doing so the binary data file can be organised more efficiently allowing data to be recovered from it quickly.
By default, the simulator won't allocate more than 10% of your system RAM to vector buffers. Clearly if you are running a large circuit and saving many vectors, the buffer sizes could reduce to levels that would make data retrieval very slow. In this case you may wish to consider increasing the memory that is allowed for these buffers. Two configuration settings control the vector buffering. These are:
Note that both MaxVectorBufferSize and TotalVectorBufferSize may be set from the front end using the Set command. See User's Manual/Sundry Topics/Using the Set and Unset Commands for details.
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