Determining ir drop
AssigneeNVIDIA Corporation
InventorsVidya Chhabria, Yanqing Zhang, Haoxing Ren, Brucek Kurdo Khailany
Life of this patent
Estimating the term…
Abstract
The IR drop for a portion of a circuit may include a voltage drop across resistance, and may include a product of current I passing through resistance with a resistance value R. In order to determine IR drop for a circuit in a more accurate and efficient manner, a neural network produces coefficient maps (that each indicate a time-varying distribution of power within an associated portion of the circuit), and these coefficient maps are then used by the neural network to determine an IR drop for each of a plurality of portions of the circuit.
Claims20
A method, comprising:
- at one or more devices that implement a neural network:
- receiving a plurality of power maps for a circuit design at the neural network;
- determining, by the neural network, a plurality of coefficient maps, utilizing the plurality of power maps;
- and
- determining, by the neural network, an IR drop for each of a plurality of cells in the circuit design, utilizing the plurality of coefficient maps.
An apparatus comprising:
- a non-transitory memory storage comprising instructions;
- and
- one or more processors in communication with the memory, wherein the one or more processors execute the instructions to:
- receive a plurality of power maps for a circuit design;
- determine a plurality of coefficient maps, utilizing the plurality of power maps;
- and
- determine an IR drop for each of a plurality of cells in the circuit design, utilizing the plurality of coefficient maps.
A non-transitory computer-readable media storing computer instructions which when executed by one or more processors of a device cause the one or more processors to cause the device to:
- receive a plurality of power maps for a circuit design at a neural network;
- determine, by the neural network, a plurality of coefficient maps, utilizing the plurality of power maps;
- and
- determine, by the neural network, an IR drop for each of a plurality of cells in the circuit design, utilizing the plurality of coefficient maps.
Dependencies are inferred from the claim text.