International Business Machines Corporation

Rahul Batra

Debapriya Chatterjee

John Andrew Schumann

Karen E Yokum

John Charles Goss

Christopher R Jones

Christopher M Riedl

Michael Stephen Floyd

Phillip John Restle

Gregory Scott Still

Brian Thomas Vanderpool

Eric Jason Fluhr

Francesco A Campisano

Isidore G Bendrihem

Ian Krispin Carmichael

Richard L Willaman

Eric Marz

Rory Tatum

Michael N Goulet

Providing deterministic frequency and voltage enhancements for a processor is disclosed. In an embodiment, a microcontroller on a processor identifies a plurality of parameters related to a processor, the plurality of parameters including at least a current supplied to the processor; determines, in dependence upon the plurality of parameters, one or more frequency scaling indexes including determining an effective switching capacitance ratio; identifies, in dependence upon the one or more frequency scaling indexes, a predetermined frequency parameter for the processor; and transitions, based on the frequency parameter, the processor to a target clock frequency. In another embodiment, a microcontroller on a processor decreases, incrementally, a power supply voltage for a processor; determines that a voltage droop parameter exceeds a voltage droop parameter threshold; and increases, incrementally, the power supply voltage in response to determining that the voltage droop parameter exceeds a voltage droop parameter threshold.

Providing deterministic frequency and voltage enhancements for a processor

Embodiments of the present disclosure provide a method, a system, and a computer readable storage medium for circuit design verification. The user generates a breakpoint by execution of test bench code. A callback function is registered at an application level associated with the breakpoint. The callback function is configured to execute in response to an occurrence of the associated breakpoint at the system level. A hardware-accelerated simulator simulates an execution of a circuit design using the test bench code. In response to triggering the breakpoint at the system level, the execution of the circuit design at the system level is paused and the callback function associated with the breakpoint at the application level is executed.

Circuit design verification in a hardware accelerated simulation environment using breakpoints

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Austin, TX, United States of America

Rahul Batra