Can user assign filename to fsdb in Spectre simulation result using Spectre command option

This is a consequence of spectre supporting multiple named analyses of the same type. Each can have their own separate result database.

So for example if my netlist looks like this:

//

R1 (n1 n2) resistor r=1k
C1 (n2 0) capacitor c=1p
V1 (n1 0) vsource type=pulse val0=0 val1=2 rise=1n width=10n period=20n

mytran tran stop=1u
yourtran tran stop=2u

And I run with -f fsdb (the netlist above is in spectre syntax - so you can see I have two differently named transient analyses), I get:

UNIX> ls myresults.raw/
logFile mytran.tran.fsdb yourtran.tran.fsdb

The filename has the name of the analysis instance, the type of analysis (because there could be other types) and the format as part of the name. You can't change the name of the file to match the design unless the instance name of the analysis matches the design name.

The reason for this is that each result directory is intended to be unique for the design. In fact if you don't specify the -raw argument, then the result directory name is named based on whatever the input file was called. So that's unique. Then there's the logFile which is an index of all the results - so you a waveform tool (such as ViVA) can know what the various results databases produced by the simulator were for the specific run.

Regards,

Andrew.

This is a consequence of spectre supporting multiple named analyses of the same type. Each can have their own separate result database.

So for example if my netlist looks like this:

//

R1 (n1 n2) resistor r=1k
C1 (n2 0) capacitor c=1p
V1 (n1 0) vsource type=pulse val0=0 val1=2 rise=1n width=10n period=20n

mytran tran stop=1u
yourtran tran stop=2u

And I run with -f fsdb (the netlist above is in spectre syntax - so you can see I have two differently named transient analyses), I get:

UNIX> ls myresults.raw/
logFile mytran.tran.fsdb yourtran.tran.fsdb

The filename has the name of the analysis instance, the type of analysis (because there could be other types) and the format as part of the name. You can't change the name of the file to match the design unless the instance name of the analysis matches the design name.

The reason for this is that each result directory is intended to be unique for the design. In fact if you don't specify the -raw argument, then the result directory name is named based on whatever the input file was called. So that's unique. Then there's the logFile which is an index of all the results - so you a waveform tool (such as ViVA) can know what the various results databases produced by the simulator were for the specific run.

Regards,

Andrew.