IBM Power Grid Benchmarks

All the power grid benchmarks presented in this website are drawn from real designs, and vary over a reasonable range of size and difficulty. They are generated in Spice format. We hope these benchmarks will motivate new research in this area, and result in breakthroughs in this challenging problem.

Contact

Dr. Zhuo Li, IBM Austin Research Lab, lizhuo at us dot ibm dot com.

Prof. Peng Li, ECE Texas A&M University, pli at tamu dot edu.

Dr. Sani R. Nassif, IBM Austin Research Lab, nassif at us dot ibm dot com.

 

IBM Power Grid Benchmarks

IBM Power Grid Benchmarks for DC Analysis

Name

#i

#n

#r

#s

#v

#l

Benchmark Files

Voltage Map

SPICE Netlist

Solution

ibmpg1

10774

30638

30027

14208

14308

2

ibmpg1.gif.bz2

ibmpg1.spice.bz2

ibmpg1.solution.bz2

ibmpg2

37926

127238

208325

1298

330

5

ibmpg2.gif.bz2

ibmpg2.spice.bz2

ibmpg2.solution.bz2

ibmpg3

201054

851584

1401572

461

955

5

ibmpg3.gif.bz2

ibmpg3.spice.bz2

ibmpg3.solution.bz2

ibmpg4

276976

953583

1560645

11682

962

6

ibmpg4.gif.bz2

ibmpg4.spice.bz2

ibmpg4.solution.bz2

ibmpg5

540800

1079310

1076848

606587

539087

3

ibmpg5.gif.bz2

ibmpg5.spice.bz2

ibmpg5.solution.bz2

ibmpg6

761484

1670494

1649002

836107

836239

3

ibmpg6.gif.bz2

ibmpg6.spice.bz2

ibmpg6.solution.bz2

ibmpgnew1

357930

1461036

2352355

461

955

NA

NA

ibmpgnew1.spice.bz2

ibmpgnew1.solution.bz2

ibmpgnew2

357930

1461039

1422830

929722

930216

NA

NA

ibmpgnew2.spice.bz2

ibmpgnew2.solution.bz2

IBM Power Grid Benchmarks for Transient Analysis

Name

#i

#n

#r

#s

#v

#l

Benchmark Files

Voltage Map

Spice Netlist

Solution

ibmpg1t

NA

NA

NA

NA

NA

NA

NA

ibmpg1t.spice.bz2

ibmpg1t.output.bz2

ibmpg2t

NA

NA

NA

NA

NA

NA

NA

ibmpg2t.spice.bz2

ibmpg2t.output.gz

ibmpg3t

NA

NA

NA

NA

NA

NA

NA

ibmpg3t.spice.bz2

ibmpg3t.output.gz

ibmpg4t

NA

NA

NA

NA

NA

NA

NA

ibmpg4t.spice.bz2

ibmpg4t.output.gz

ibmpg5t

NA

NA

NA

NA

NA

NA

NA

ibmpg5t.spice.bz2

ibmpg5t.output.gz

ibmpg6t

NA

NA

NA

NA

NA

NA

NA

ibmpg6t.spice.bz2

ibmpg6t.output.gz

         i for current source

         n for nodes (total number, does not take shorts into account)

         r for resistors (include shorts)

         s for shorts (zero value resistors and voltage sources)

         v for voltage sources (include shorts)

         l for metal layers

         Other available files: README.txt, MD5SUMS.txt, SUMMARY.txt

         All the IBM DC power grid benchmarks are described in detail in: S. R. Nassif, Power Grid Analysis Benchmarks, ASPDAC 2008

SPICE Netlist Gneration

The link between the SPICE netlist naming and numbering scheme for the circuit and the original geometry of the power grid is described below.

         Node name:

n<net-index>_<x-location>_<y-location>

         Data associated with each layer starts from:

* layer: <name>,<net>_net: <net-index>

Each layer/net combination is associated with a unique net-index.

         Vias starts from:

* vias from: <net-index> to <net-index>

Vias are implemented as resistors or as zero voltage sources.

         Current source:

iB<block-number> <node> 0 <value>  and  iB<block-number> 0 <node> <value>

Each current source is split into two components: from VDD to ideal ground and from ideal ground to VSS. Current sources in transient benchmarks are pulse current souces.

         Each circuit file has a global VDD voltage source and each package connection is recognized as a resistor connected to the global source.

Example of SPICE Netlist Generation

Description: http://dropzone.tamu.edu/~pli/PGBench/index_files/image2951.gif

Figure 1: A small power grid

A simple power grid design consisting of two metal layers (M1 and M2) is given in Figure 1. Each metal layer has 4 VDD and 3 VSS wires.The resulting Spice format file for the power grid in Figure 1 is below:

rr0 n3_0_0 _X_n3_0_0 0.5

v1 _X_n3_0_0 0 1

rr2 n2_125_125 _X_n2_125_125 0.5

v3 _X_n2_125_125 0 0

* layer: M1,VDD net: 1

R4 n1_0_0 n1_50_0 1.25

R5 n1_50_0 n1_100_0 1.25

R6 n1_100_0 n1_150_0 1.25

R7 n1_0_50 n1_50_50 1.25

R8 n1_50_50 n1_100_50 1.25

R9 n1_100_50 n1_150_50 1.25

R10 n1_0_100 n1_50_100 1.25

R11 n1_50_100 n1_100_100 1.25

R12 n1_100_100 n1_150_100 1.25

R13 n1_0_150 n1_50_150 1.25

R14 n1_50_150 n1_100_150 1.25

R15 n1_100_150 n1_150_150 1.25

* vias from: 1 to 3

V16 n1_0_0 n3_0_0 0.0

V17 n1_0_50 n3_0_50 0.0

V18 n1_0_100 n3_0_100 0.0

V19 n1_0_150 n3_0_150 0.0

V20 n1_50_0 n3_50_0 0.0

V21 n1_50_50 n3_50_50 0.0

V22 n1_50_100 n3_50_100 0.0

V23 n1_50_150 n3_50_150 0.0

V24 n1_100_0 n3_100_0 0.0

V25 n1_100_50 n3_100_50 0.0

V26 n1_100_100 n3_100_100 0.0

V27 n1_100_150 n3_100_150 0.0

V28 n1_150_0 n3_150_0 0.0

V29 n1_150_50 n3_150_50 0.0

V30 n1_150_100 n3_150_100 0.0

V31 n1_150_150 n3_150_150 0.0

* layer: M2,VDD net: 3

R32 n3_0_0 n3_0_50 1.25

R33 n3_0_50 n3_0_100 1.25

R34 n3_0_100 n3_0_150 1.25

R35 n3_50_0 n3_50_50 1.25

R36 n3_50_50 n3_50_100 1.25

R37 n3_50_100 n3_50_150 1.25

R38 n3_100_0 n3_100_50 1.25

R39 n3_100_50 n3_100_100 1.25

R40 n3_100_100 n3_100_150 1.25

R41 n3_150_0 n3_150_50 1.25

R42 n3_150_50 n3_150_100 1.25

R43 n3_150_100 n3_150_150 1.25

* layer: M1,GND net: 0

R44 n0_25_25 n0_75_25 1.25

R45 n0_75_25 n0_125_25 1.25

R46 n0_25_75 n0_75_75 1.25

R47 n0_75_75 n0_125_75 1.25

R48 n0_25_125 n0_75_125 1.25

R49 n0_75_125 n0_125_125 1.25

* layer: M2,GND net: 2

R50 n2_25_25 n2_25_75 1.25

R51 n2_25_75 n2_25_125 1.25

R52 n2_75_25 n2_75_75 1.25

R53 n2_75_75 n2_75_125 1.25

R54 n2_125_25 n2_125_75 1.25

R55 n2_125_75 n2_125_125 1.25

* vias from: 0 to 2

V56 n0_25_25 n2_25_25 0.0

V57 n0_25_75 n2_25_75 0.0

V58 n0_25_125 n2_25_125 0.0

V59 n0_75_25 n2_75_25 0.0

V60 n0_75_75 n2_75_75 0.0

V61 n0_75_125 n2_75_125 0.0

V62 n0_125_25 n2_125_25 0.0

V63 n0_125_75 n2_125_75 0.0

V64 n0_125_125 n2_125_125 0.0

*

iB0_0_v n1_0_0 0 0.3125m

iB0_0_g 0 n0_25_25 0.3125m

iB0_1_v n1_0_50 0 0.3125m

iB0_1_g 0 n0_25_25 0.3125m

iB0_2_v n1_0_100 0 0.3125m

iB0_2_g 0 n0_25_75 0.3125m

iB0_3_v n1_0_150 0 0.3125m

iB0_3_g 0 n0_25_125 0.3125m

iB0_4_v n1_50_0 0 0.3125m

iB0_4_g 0 n0_25_25 0.3125m

iB0_5_v n1_100_0 0 0.3125m

iB0_5_g 0 n0_75_25 0.3125m

iB0_6_v n1_50_50 0 0.3125m

iB0_6_g 0 n0_25_25 0.3125m

iB0_7_v n1_50_100 0 0.3125m

iB0_7_g 0 n0_25_75 0.3125m

iB0_8_v n1_100_50 0 0.3125m

iB0_8_g 0 n0_75_25 0.3125m

iB0_9_v n1_100_100 0 0.3125m

iB0_9_g 0 n0_75_75 0.3125m

iB0_10_v n1_50_150 0 0.3125m

iB0_10_g 0 n0_25_125 0.3125m

iB0_11_v n1_100_150 0 0.3125m

iB0_11_g 0 n0_75_125 0.3125m

iB0_12_v n1_150_0 0 0.3125m

iB0_12_g 0 n0_125_25 0.3125m

iB0_13_v n1_150_50 0 0.3125m

iB0_13_g 0 n0_125_25 0.3125m

iB0_14_v n1_150_100 0 0.3125m

iB0_14_g 0 n0_125_75 0.3125m

iB0_15_v n1_150_150 0 0.3125m

iB0_15_g 0 n0_125_125 0.3125m

.op

.end

 

Solution Formats

         DC analysis output format (value is in volt)

<node> value

 

         Transient analysis output format (time is in ns and value is in volt; time/voltage values are printed for each time step.)

NODE: <node1>

time value

´ ´

END: <node1>

NODE: <node2>

time value

´ ´

END: <node2>

NODE: <node3>

time value

´ ´

END: <node3>

 

Note for TAU Transient Power Grid Contest:

The binaries should be able to accept any simulation and time step that is specified in the .tran command of the spice file. Again, time is in ns and value is in volt; time/voltage values are printed for each time step

TAU Power Grid Simulation Contest

2011 TAU Power Grid Simulation Contest

 

Last updated in Aug. 2011. Webpage created by Albert (Zhiyu) Zeng. All rights reserved.