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  3. Corner and varible sweep simulation in spectre

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Corner and varible sweep simulation in spectre

lahsivece
lahsivece over 12 years ago

Hi ,

I am trying to do a multivariable sweep and corner simulation in spectre . 

In ocean , it is easy , I can do following 

b0_list = list(0.0 1.2)
b1_list = list(0.0 1.2)
b2_list = list(0.0 1.2)

corners='("ss" "ff" "tt" "snfp" "fnsp")

foreach(corner corners

modelFile(list("<path_to_model_library>/model.lib.scs" sprintf(nil "%s" corner)))
foreach(x b2_list
desVar("b2" x)
foreach(y b1_list
desVar("b1" y)
foreach(z b0_list
desVar("b0" z)
  resultsDir(sprintf(nil "<path_to_result_directory>/spectre/schematic/corner=%sb5=%gb4=%gb3=%gb2=%gb1=%gb0=%g",corner,b5_z,b4_y,b3_x,x,y,z))
run()
)
)
)
)


How can I modify above to use it  for spectre simulations from command line ?

Due to some logistical issues , I can have access to either one  MMSIM (for spectre) or IC514( for ocean) for simulation .

Please advise. 

Thanks 

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  • jerry124
    jerry124 over 12 years ago

    I would like to sweep parameter in one of sub circuit. I am running simulation from command line. If I run sweep parameter on one of device on top lavel it works fine, but when I want run sweep parameter on sub circuit (circuit contains only one type of devices- mos) I get an error. below is part of my simulation file and error i get. do you have any suggestion what I am doing wrong?

    // sw1 sweep dev=m1 param=w values=[ 5u 6u 7u 8u 9u ] {

    sw1 sweep sub=xs25 mod=mos bsim3v3 param=w values=[5u 6u 7u 8u 9u] {
      ac ac start=100 stop=150M dec=20 
    }
    ------------------------------

     Error found by spectre during circuit read-in.
        ERROR (SFE-874): "test.scs" 389: Unexpected keyword "param".
            Expected equals.
        ERROR (SFE-874): "test.scs" 395: Unexpected end of block
            statement "}".
    Warning from spectre during circuit read-in.
        WARNING (SFE-618): Unterminated block statement. Terminating statement at
            the end of file.

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  • jerry124
    jerry124 over 12 years ago

    I would like to sweep parameter in one of sub circuit. I am running simulation from command line. If I run sweep parameter on one of device on top lavel it works fine, but when I want run sweep parameter on sub circuit (circuit contains only one type of devices- mos) I get an error. below is part of my simulation file and error i get. do you have any suggestion what I am doing wrong?

    // sw1 sweep dev=m1 param=w values=[ 5u 6u 7u 8u 9u ] {

    sw1 sweep sub=xs25 mod=mos bsim3v3 param=w values=[5u 6u 7u 8u 9u] {
      ac ac start=100 stop=150M dec=20 
    }
    ------------------------------

     Error found by spectre during circuit read-in.
        ERROR (SFE-874): "test.scs" 389: Unexpected keyword "param".
            Expected equals.
        ERROR (SFE-874): "test.scs" 395: Unexpected end of block
            statement "}".
    Warning from spectre during circuit read-in.
        WARNING (SFE-618): Unterminated block statement. Terminating statement at
            the end of file.

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