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Oceanscript run is taking more time than ADE run in IC616

RFStuff

Dear All,

I was running oceanScript in IC616, I observed that, ocean script simulation run is taking more time as compared to running same circuit with same netlist in ADE.

Can any body please tell why this is happening and how to fix it ?

Kind Regards,

Parents

  • Dear Tom/Andrew,

    The initial overhead is NOT much.

    Both ocean & ADE show same elapsed-time at the end ( 17s in the simple test-simulation).

    However, ocean actually takes 2min ( I measured using a stopwatch just for quantification ).

    I actually ran a pss & pac simulation. The pss simulation times are same in both cases.

    But, as Andrew has mentioned, the PAC is certainly verbose ( 2001 steps (100KHz -step for -100M to +100M sweep) ).

    In fact this PAC print on the terminal is very slow and time gets consumed, though cadence reports approximately same time at the end of simulation for both cases.

    Also while printing into a file ( by fprint() with %0.8e , it takes almost 38 mins to write above 2001 points, both real part and imaginary part and the frequency ). Paradoxically,this is much much faster in case of IC5141.

    Kind Regards,

Reply

  • Dear Tom/Andrew,

    The initial overhead is NOT much.

    Both ocean & ADE show same elapsed-time at the end ( 17s in the simple test-simulation).

    However, ocean actually takes 2min ( I measured using a stopwatch just for quantification ).

    I actually ran a pss & pac simulation. The pss simulation times are same in both cases.

    But, as Andrew has mentioned, the PAC is certainly verbose ( 2001 steps (100KHz -step for -100M to +100M sweep) ).

    In fact this PAC print on the terminal is very slow and time gets consumed, though cadence reports approximately same time at the end of simulation for both cases.

    Also while printing into a file ( by fprint() with %0.8e , it takes almost 38 mins to write above 2001 points, both real part and imaginary part and the frequency ). Paradoxically,this is much much faster in case of IC5141.

    Kind Regards,

Children
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