userCmdLineOption and Multi Thread Support

Hi All,

I am facing the following problems.

My spectre version is "sub-version 7.2.0.109" and icfb version is
"sub-version 5.10.41.500.6.140".
Whenever I am trying to fire the simulation using the spectre or
spectreVerilog simulator, the simulation is not running from the GUI
interface and complaining about the value of the userCmdLineOption . I
have set it in the Environemnt options of the ADE window as " +lqt 900
+lqs 30" . But the simulation is running fine from command line
using ./runSimulation. Can any one please suggest what should be the
values of the above two parameters so that I can run the simulation
form the GUI interface?


In the option of the "Simulation -> Analog -> Options" of the ADE
window , I have found a tab named "MULTI-THREADING OPTIONS" where on/
off options for the multi-threads are given and an entry field for the
number of the threads are given. Can any one suggest how to use the
Multi-Threading options for the simulation in Cadence?

Thanks in advance.

Thanks and Regards....


Cheers!!!!!


Debjit.

 

Debjit wrote, on 12/22/09 11:22:

Hi Debjit,

Can you post the log file (including the top) from spectre where it is
complaining about the license queueing options? I think the most likely
explanation is that you're not using the version of spectre you think you are,
but either way the exact error and info from the top of the log file could help.

For multi-threading options; this is an older option which allowed some limited
multi-threading of the device equation evaluation for bsim3/bsim4 models. It has
been really replaced by the Spectre Turbo and APS options, which give further
speedup - so I would look at those.

You should see a Setup->Turbo/Parasitic Reduction menu in ADE. This is how you
enable Turbo. You can specify the number of threads, or let it decide automatically.

This menu will be extended (in IC5141 ISR141) to also support APS from MMSIM72;
there's now a unified use model. Before then, you need to pick "aps" as a
separate simulator in ADE.

APS (Accelerated Parallel Simulator) now supports most of the spectre analyses
(including the RF analyses) from MMSIM72 - although this will be available via
the "spectre" interface in ADE (IC5141 ISR141, as I said before). The old "aps"
simulator interface only supports dc and tran.

I suggest you read up in the documentation for MMSIM about Spectre Turbo and APS.

Regards,

Andrew.

 

Hi Andreaw,

The Log file at the end says:

End netlisting Dec 31 12:32:02 2009
\o
\o The netlist is up to date.
\o Time taken to compare the design with netlist: 1.0s
\o ...successful.
\o <ACE> Setting simulation parameters ......
\o <ACE> parameters resComplex=on
\o ...successful.
\o compose simulator input file...
\o ...successful.
\o start simulator if needed...
\o ...successful.
\o simulate...
\e *Error* Errors encountered during simulation. The simulator run log
has not been generated.
\e Possible cause could be an invalid command line option for the
version of the simulator
\e you are running. Choose Setup->Environment and verify that the
command line options
\e specified in the userCmdLineOption field are supported for the
simulator.
\e Alternatively, run the simulator standalone using the runSimulation
file in the netlist.

The runSimulation file is the following:

spectre -env artist5.1.0 +escchars +log ../psf/spectre.out -format
psfbin -raw ../psf +lqtimeout 900 -maxw 5 -maxn 5 +lqt 900 +lqs 30
input.scs

The spectre -W command returns sub-version 7.2.0.109 and icfb -W
returns sub-version 5.10.41.500.6.140 .

If you require any other information please feel free to ask me.

Thanks and Regards,

Cheers!!!!

Debjit.

 

HI Andrew,

I forgot to mention another information. The ./runSimulation is
running perfectly but the simulation is not running whenever I try to
run it from GUI..

Please help.

Thanks and Regrads,

Cheers!!!!

Debjit.

 

Debjit wrote, on 12/31/09 07:34:

I suspect something is awry with your environment and the IC environment is
interfering with the MMSIM environment.

Perhaps you can try this:

envSetVal("spectre.envOpts" "controlMode" 'string "batch")

then start ADE, and try to run the simulation. When that fails, try:

sh("/path/to/simulation/dir/cellName/spectre/viewName/netlist/runSimulation")

and then look in the terminal window that you started virtuoso/icfb from to see
if there are any errors reported.

If so, what are they?

Regards,

Andrew.

 

Hi Andrew,

I did not find error but still the simulation fails from GUI but runs
fine from the command line using the runSimulation script.
I am confused. Please suggest


Thanks and Regards!!!

Cheers !!!!!


Debjit.

 

Hi Debjit,

Try this. Create a script, called "mySpectre" with the following contents:

#!/bin/sh
echo "$@" > $HOME/commandArgs
exec spectre "$@" > $HOME/spectreOut 2>&1

then do:

chmod a+x mySpectre

then, in virtuoso, before starting ADE, do:

envSetVal("spectre.envOpts" "simExecName" 'string "/full/path/to/mySpectre")

Then run a simulation interactively, and look in the $HOME/commandArgs and
$HOME/spectreOut files that get produced to see if that gives any clues.

Regards,

Andrew.