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The circuits listed below are from the MCNC Benchmark Series, circa 1990. IsSpice4 runs 100% of these circuits to completion.
The MCNC benchmark test suite shown here demonstrates that IsSpice4 completely runs all of these circuits. In fact, IsSpice4 has consistently outperformed the competition in independent evaluations by EDN and other magazines. IsSpice4 is the first commercial Spice simulator to offer many new features including our if-then-else and Boolean extensions to SPICE3, incorporation of XSPICE, OLE/Visual Basic interface and numerous other features that you don't see because they're "under the hood."
For this benchmark set, IsSpice4 was run on an PentiumIII-600MHz with 128Meg RAM.
Speed Note: All circuits simulated with IsSpice4 were run interactively and used the Real-Time Waveform display (this increased runtimes by an average of 10% over the running times where IsSpice4 is run batch style with no real-time display). If IsSpice4 were run using its batch mode of operation, where the real-time display is blanked (not used), all runtimes would decrease by an average of 10%.
For more information on the CircuitSim90 benchmark standards. Just download MCNC.zip and compare!
Simulation Times
BJT Circuits
Number of BJTs
Number of Capacitors
Number of Resistors Total Simulation Time (sec) astabl 4
1
8
0.100
11
0
12
0.150
12
0
24
0.300
13
0
5
0.966
14
0
10
0.233
20
0
10
0.083
22
11
0
5.466
23
1
11
0.450
41
1
26
0.716
96
12
276
0.250
148
4
28
0.666
528
19
148
3.500
MOS Level 2 Test Circuits Number of Mosfets Number of Capacitors Number of Resistors Total Simulation Time (sec) reg0 pump mosrect gm6 schmitfast schmitslow g1310 slowlatch hussamp nand e1480 ab_ac ab_integ ab_opamp ring toronto cram mux8 MOS Level 3 Test Circuits Number of Mosfets Number of Capacitors Number of Resistors Total Simulation Time (sec) gm2 mike2 todd3 gm3 gm1 gm17 rich3 arom gm19 counter b330 jge MOS Level 2 Large Test Circuits voter25 fadd32 pchip add20 sram sqrt add32 dac voter mem_plus smult20 ram2k pcframe chip2