A
Andreas Ehliar
Guest
A long time ago there was a thread on comp.arch.fpga regarding how to
regularly print out some information about the simulation progress.
The thread was fairly short and no real progress was made to a solution
which was really satisfactory (at least not in my opinion).
I revisited this topic today while waiting for a long simulation
and came up with a TCL script which will print out the following
info when run in Modelsim:
*** SIMINFO: Simulator time is 272071220000 ps, real time is Thu Jul 14 11:05:57 PM CEST 2011
*** SIMINFO: Simulation speed is about 2314451469 (simulated) ps per second
*** SIMINFO: Simulation has run for 13603561 clock cycles on /tb/clk
*** SIMINFO: Simulation is running at about 115722 (simulated) cycles per second
This is nice when running a simulation in batch mode where it is not
possible to see the current time. I guess the script will also be
convenient when benchmarking a few different computers for use with
Modelsim since it will print out how fast the simulator is running.
If you are interested you can download the script from my homepage:
http://www.da.isy.liu.se/~ehliar/stuff/dump_simstate.tcl
And if you happen to notice some bug or figure out some way to
improve it, please let me know
The script has been tested with
ModelSim SE-64 6.6 but it will hopefully work with some other
versions as well. (Let me know if it doesn't and I'll try to fix
it for at least semi-modern versions.)
By the way, if anyone happens to know how to ask Modelsim whether a
certain entity is a parameter I would be quite happy.
I know how to use the examine commands to identify inputs, outputs,
inouts, and internal signals. I also know how to use the mem list
command to identify a memory. At this point I can eliminate most
other internal signals by using the find command, but this is quite
an ugly hack and there are probably other things which the find net
and find signal command will ignore besides parameters.
regards
/Andreas
regularly print out some information about the simulation progress.
The thread was fairly short and no real progress was made to a solution
which was really satisfactory (at least not in my opinion).
I revisited this topic today while waiting for a long simulation
and came up with a TCL script which will print out the following
info when run in Modelsim:
*** SIMINFO: Simulator time is 272071220000 ps, real time is Thu Jul 14 11:05:57 PM CEST 2011
*** SIMINFO: Simulation speed is about 2314451469 (simulated) ps per second
*** SIMINFO: Simulation has run for 13603561 clock cycles on /tb/clk
*** SIMINFO: Simulation is running at about 115722 (simulated) cycles per second
This is nice when running a simulation in batch mode where it is not
possible to see the current time. I guess the script will also be
convenient when benchmarking a few different computers for use with
Modelsim since it will print out how fast the simulator is running.
If you are interested you can download the script from my homepage:
http://www.da.isy.liu.se/~ehliar/stuff/dump_simstate.tcl
And if you happen to notice some bug or figure out some way to
improve it, please let me know
The script has been tested withModelSim SE-64 6.6 but it will hopefully work with some other
versions as well. (Let me know if it doesn't and I'll try to fix
it for at least semi-modern versions.)
By the way, if anyone happens to know how to ask Modelsim whether a
certain entity is a parameter I would be quite happy.
I know how to use the examine commands to identify inputs, outputs,
inouts, and internal signals. I also know how to use the mem list
command to identify a memory. At this point I can eliminate most
other internal signals by using the find command, but this is quite
an ugly hack and there are probably other things which the find net
and find signal command will ignore besides parameters.
regards
/Andreas