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Questa 2020.1: Error: (vsim-3296) Unknown option '-restore'

alexislms
New Contributor III
354 Views

I'm trying to restore a checkpoint of a very long simulation using

 

$ vsim -restore checkpoint 
Reading pref.tcl
** Error: (vsim-3296) Unknown option '-restore'.
Use the -help option for complete vsim usage.
Errors: 1, Warnings: 0

 

From the Questa SIM Command Reference Manual:

 

restore
Restores the state of a simulation that was saved with a checkpoint command during the current
invocation of vsim (a “warm restore”).
Syntax
restore <pathname>
Description
The restored items are: simulation kernel state, vsim.wlf file, HDL objects listed in the List and
Wave windows, file pointer positions for files opened under VHDL and under Verilog $fopen,
and the saved state of foreign architectures.
Use this command to restore while running vsim. To start up vsim and simultaneously restore a
previously-saved checkpoint, use vsim -restore (called a "cold restore").

 

 The last line: `use vsim -restore`.

 

Opening vsim and then "restore checkpoint": ("checkpoint" is the filename)

alexislms_0-1653462405722.png

 

$ vsim -help restore
Model Technology ModelSim - INTEL FPGA STARTER EDITION vsim 2020.1 Simulator 2020.02 Feb 28 2020
** Error (suppressible): (vsim-13356) Option "restore" is unrecognized Category for vsim tool.

 

 

What am I missing?

 

Regards,

0 Kudos
1 Solution
SyafieqS
Moderator
278 Views

Alexis,


Are you using Modelsim or Questasim?

The reason is from the image you attached seem like you are using Modelsim as mentioned


""Model Technology ModelSim - INTEL FPGA STARTER EDITION vsim 2020.1 Simulator 2020.02 Feb 28 2020""

""Modelsim>""


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7 Replies
SyafieqS
Moderator
324 Views

Alexis,


As Questa is quite new to Quartus this might be a limitation.

Let me try to reproduce the issue and let you know.



alexislms
New Contributor III
309 Views

Hi @SyafieqS , this has nothing to do with Quartus, it's a questa/modelsim feature documented in its user manual.

Please let me know since we need to be able to open results of a long running simulation in another computer, and eventually continue the simulation.

SyafieqS
Moderator
279 Views

Alexis,


Are you using Modelsim or Questasim?

The reason is from the image you attached seem like you are using Modelsim as mentioned


""Model Technology ModelSim - INTEL FPGA STARTER EDITION vsim 2020.1 Simulator 2020.02 Feb 28 2020""

""Modelsim>""


alexislms
New Contributor III
270 Views

The PATH might have been mixed... (simulated and snapshot saved with Questa but tried to open it on a desktop with modelsim in the path...)

Sorry about that @SyafieqS ! Let me try again with Questa. 

SyafieqS
Moderator
250 Views

Alexis.


Sure let me know if the issue still persist or any update



alexislms
New Contributor III
244 Views

@SyafieqS I've tried with Quartus and it has worked! Modelsim doesn't support this feature.

 

Please feel free to close this ticket.

Thank you for your help!

 

Regards,

SyafieqS
Moderator
223 Views

I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.


p/s: If any answer from community or Intel support are helpful, please feel free to mark as solution and give Kudos.


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