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ADE XL Monte Carlo Simulation: "Error evaluating ocean expression"

Hello All,

I am experiencing a rather strange behavior of ADE XL when it comes to evaluate the expressions defined in the
'Outputs Setup' section during a monte carlo run.

The simulation stops (after the first run has finished) with an error like:

ERROR (SPECTRE-8003): designParamVals: Error evaluating ocean expression `DE_1_I_Bias_6_45=average(IT("/I0/I0/I0/T7/D"))'.

If I disable all the expressions in the 'Outputs Setup' pane the simulation runs fine. I can then use the 'Re-evaluate Result' button in the 'Results' pane to evaluate my defined expressions without any problems.

I am using

- Spectre Version 7.1.1.187.isr11 64bit -- 18 Aug 2009
- Virtuoso version IC6.1.4.500.3

Anybody else, experiencing this kind of strange behavior?

Cheers,
Lukas

Parents

ramadan over 14 years ago

hi andrew
i had the same problem that this guy had but i am using ADE L Monte carlo NOT XL ,and while i looked for montecarlo option there isnt

any my cadence version is ic5141 ,and i am trying to do a monte carlo simulation ,and here is the spectre output

#########################################################################################
##########################################################################################

Cadence (R) Virtuoso (R) Spectre (R) Circuit Simulator
Version 6.2.1.197 -- 13 Mar 2008
Copyright (C) 1989-2007 Cadence Design Systems, Inc. All rights reserved worldwide. Cadence, Virtuoso and Spectre are registered trademarks of Cadence Design Systems, Inc. All others are the property of their respective holders.

Protected by U.S. Patents: 5,610,847; 5,790,436; 5,812,431; 5,859,785; 5,949,992; 5,987,238; 6,088,523; 6,101,323; 6,151,698; 6,181,754; 6,260,176; 6,278,964; 6,349,272; 6,374,390; 6,493,849; 6,504,885; 6,618,837; 6,636,839; 6,778,025; 6,832,358; 6,851,097; 6,928,626; 7,024,652; 7,035,782; 7,085,700; 7,143,021.

Includes RSA BSAFE(R) Cryptographic or Security Protocol Software from RSA Security, Inc.

Simulating `input.scs' on faith at 3:51:07 PM, Thur Sep 8, 2011.
Command line:
    /usr/local/cadence/mmsim/tools.sun4v/spectre/bin/32bit/spectre -env \
        artist5.1.0 +escchars +log ../psf/spectre.out -format sst2 -raw \
        ../psf \
        -I/usr/local/ibm-13/IBM_PDK/cmrf8sf/V1.3.0.1DM/Spectre/models \
        +lqtimeout 900 -maxw 5 -maxn 5 input.scs

Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libinfineon_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libnortel_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libphilips_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libsparam_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libstmodels_sh.so ...
Using new Spectre Parser.
Auto-loading AHDL component.
Finished loading AHDL component in 0 s (elapsed).
Installed AHDL simulation interface.

Notice from spectre during topology check.
    No connections to node `0'.
    No DC path from node `clk' to ground, Gmin installed to provide path.
    No DC path from node `a0bar' to ground, Gmin installed to provide path.
    No DC path from node `a0' to ground, Gmin installed to provide path.
    No DC path from node `I0.T9:int_s' to ground, Gmin installed to provide path.
    No DC path from node `b0bar' to ground, Gmin installed to provide path.
        Further occurrences of this notice will be suppressed.

Circuit inventory:
              nodes 165
          equations 799
              bsim4 317

Notice from spectre.
    4 notices suppressed.

**************************************************
Monte Carlo Analysis `mc1': iteration = (1 -> 100)
**************************************************
awaiting artil process initialization ....

**** Performing nominal run for `mc1'
modelParameter: writing model parameter values to rawfile.
element: writing instance parameter values to rawfile.
outputParameter: writing output parameter values to rawfile.
designParamVals: writing netlist parameters to rawfile.
primitives: writing primitives to rawfile.
subckts: writing subcircuits to rawfile.

Error found by spectre during Monte Carlo analysis `mc1'.
    ERROR (SPECTRE-8003): subckts: Error evaluating ocean expression `path_1_delay_r=delay(VT("/clk") 0.6 5 "rising"
            VT("/c5") 0.6 4 "falling" 0 0 nil nil)'.

Unsuccessfully evaluated export statements (based on return code).
Analysis `mc1' was terminated prematurely due to an error.

Aggregate audit (3:51:13 PM, Thur Sep 8, 2011):
Time used: CPU = 2.27 s, elapsed = 6 s, util. = 37.8%.
Time spent in licensing: elapsed = 40 ms.
Virtual memory used = 23.1 Mbytes.
spectre completes with 1 error, 0 warnings, and 11 notices.
############################################################
#############################################################
please let me know if you can help me for that or if you need more info

you can email me on ramadan.buzakuk@yahoo.com
thanks
Cancel
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Reply

ramadan over 14 years ago

hi andrew
i had the same problem that this guy had but i am using ADE L Monte carlo NOT XL ,and while i looked for montecarlo option there isnt

any my cadence version is ic5141 ,and i am trying to do a monte carlo simulation ,and here is the spectre output

#########################################################################################
##########################################################################################

Cadence (R) Virtuoso (R) Spectre (R) Circuit Simulator
Version 6.2.1.197 -- 13 Mar 2008
Copyright (C) 1989-2007 Cadence Design Systems, Inc. All rights reserved worldwide. Cadence, Virtuoso and Spectre are registered trademarks of Cadence Design Systems, Inc. All others are the property of their respective holders.

Protected by U.S. Patents: 5,610,847; 5,790,436; 5,812,431; 5,859,785; 5,949,992; 5,987,238; 6,088,523; 6,101,323; 6,151,698; 6,181,754; 6,260,176; 6,278,964; 6,349,272; 6,374,390; 6,493,849; 6,504,885; 6,618,837; 6,636,839; 6,778,025; 6,832,358; 6,851,097; 6,928,626; 7,024,652; 7,035,782; 7,085,700; 7,143,021.

Includes RSA BSAFE(R) Cryptographic or Security Protocol Software from RSA Security, Inc.

Simulating `input.scs' on faith at 3:51:07 PM, Thur Sep 8, 2011.
Command line:
    /usr/local/cadence/mmsim/tools.sun4v/spectre/bin/32bit/spectre -env \
        artist5.1.0 +escchars +log ../psf/spectre.out -format sst2 -raw \
        ../psf \
        -I/usr/local/ibm-13/IBM_PDK/cmrf8sf/V1.3.0.1DM/Spectre/models \
        +lqtimeout 900 -maxw 5 -maxn 5 input.scs

Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libinfineon_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libnortel_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libphilips_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libsparam_sh.so ...
Loading /usr/local/cadence/mmsim/tools.sun4v/cmi/lib/5.0/libstmodels_sh.so ...
Using new Spectre Parser.
Auto-loading AHDL component.
Finished loading AHDL component in 0 s (elapsed).
Installed AHDL simulation interface.

Notice from spectre during topology check.
    No connections to node `0'.
    No DC path from node `clk' to ground, Gmin installed to provide path.
    No DC path from node `a0bar' to ground, Gmin installed to provide path.
    No DC path from node `a0' to ground, Gmin installed to provide path.
    No DC path from node `I0.T9:int_s' to ground, Gmin installed to provide path.
    No DC path from node `b0bar' to ground, Gmin installed to provide path.
        Further occurrences of this notice will be suppressed.

Circuit inventory:
              nodes 165
          equations 799
              bsim4 317

Notice from spectre.
    4 notices suppressed.

**************************************************
Monte Carlo Analysis `mc1': iteration = (1 -> 100)
**************************************************
awaiting artil process initialization ....

**** Performing nominal run for `mc1'
modelParameter: writing model parameter values to rawfile.
element: writing instance parameter values to rawfile.
outputParameter: writing output parameter values to rawfile.
designParamVals: writing netlist parameters to rawfile.
primitives: writing primitives to rawfile.
subckts: writing subcircuits to rawfile.

Error found by spectre during Monte Carlo analysis `mc1'.
    ERROR (SPECTRE-8003): subckts: Error evaluating ocean expression `path_1_delay_r=delay(VT("/clk") 0.6 5 "rising"
            VT("/c5") 0.6 4 "falling" 0 0 nil nil)'.

Unsuccessfully evaluated export statements (based on return code).
Analysis `mc1' was terminated prematurely due to an error.

Aggregate audit (3:51:13 PM, Thur Sep 8, 2011):
Time used: CPU = 2.27 s, elapsed = 6 s, util. = 37.8%.
Time spent in licensing: elapsed = 40 ms.
Virtual memory used = 23.1 Mbytes.
spectre completes with 1 error, 0 warnings, and 11 notices.
############################################################
#############################################################
please let me know if you can help me for that or if you need more info

you can email me on ramadan.buzakuk@yahoo.com
thanks
Cancel
Vote Up 0 Vote Down

Cancel

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