How to calculate Simulation Time

[priya]

Hi ALL,

How do i calcalute the simulation time for Verilog Code.

For example take verilog Code for DflipFlop.Here i need to calculate
how much time the simulator will take to compile and excute the
DflipFlop Verilog Code.I am using Icarus Simulator.



regds,
priya

 

[Ajeetha]

Priya,
It is slightly confusing as to what exactly you refer to with this
"time" - is it simulation time - if so "how many ns my sim has run
for"?
If so use $time

OTOH, if you wanted to measure wall clock time as to how long it took
to compile and run sim, use a simple UNIX date command before and after
simulation - there are other ways too.

HTH
Ajeetha
www.noveldv.com

 

Or if you wanted to measure the CPU time rather than the wall-clock
time, you could use the UNIX 'time' command.

 

[priya]

OTOH, if you wanted to measure wall clock time as to how long it took

to compile and run sim, use a simple UNIX date command before and after
simulation - there are other ways too.

Ajeetha,urs is correct

I type in command line time && vvp -v a.out&& time
I got the below result......

D:\iverilog\bin>time &&vvp -v a.out &&time
The current time is: 10:19:33.18
Enter the new time:
Compiling VVP ...
Compile cleanup...
... Linking
... Removing symbol tables
... 9 functors
0 table
0 bufif
0 resolv
5 variable
... 17 opcodes (16384 bytes)
... 10 nets
... 0 memories
... 2 scopes
Running ...
the 10 1 0
Event counts: (event pool = 682)
5 thread schedule events
2 propagation events
2 assign events
0 other events
The current time is: 10:19:33.89

IT asked some enter new time..Till now I couldnt find the time what
exactly the simulator took to compile and run the code...

I need exact time Value...






Ajeetha wrote:

Priya,
It is slightly confusing as to what exactly you refer to with this
"time" - is it simulation time - if so "how many ns my sim has run
for"?
If so use $time

OTOH, if you wanted to measure wall clock time as to how long it took
to compile and run sim, use a simple UNIX date command before and after
simulation - there are other ways too.

HTH
Ajeetha
www.noveldv.com