Large netlist simulation using Spectre

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advaitha

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I am trying to simulate a large (>100K elements) post-layout parasitc netlist. The only tool available to me is Cadence Spectre. The system being used has 8GB RAM and runs on 2 Xeon processors at 2.7GHz each. The OS is Redhat Linux 8.0. The System monitor shows that the Spectre process uses only upto a little more than 3GB of RAM and then returns the error 'Insufficient memory'.
Can anyone suggest a method to eliminate this error and finish the simulation?
 

Starting with 6.0 the netlist read speed and also the capacity is improved. We encounter the same issue with 5.1.x
 

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    advaitha

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I also have this problem before, Sometime the RC extraction really extract a large number parasitic components, some small component has little effect on the design, set up the options for RCX to reduce the number pf RC devices, e.g. give a long length for capacitance extraction. Or you can split the final design into small blocks to perform simulation.
 

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    advaitha

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Can the 'distributed processing' option in Spectre be used to solve this problem?
 

why not omit the small R and C?
 

I have tried to simulate with R & C only on selected nets. Even then the netlist can't be simulated.
 

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