Intel Corporation

Mishali Naik

Bret L Toll

Eliezer Weissmann

Alon Naveh

Dheeraj R Subbareddy

Eugene Gorbatov

David A Koufaty

Ganapati Srinivasa

Ronak Singhal

Paolo L Narvaez

Buford M Guy

Andrew J Herdrich

Inder M Sodhi

Russell Jerome Fenger

Scott D Hahn

Gaurav Khanna

Paul Brett

Abirami Prabhakaran

Andrew D Henroid

Jason W Brandt

Ravishankar Iyer

Stephen Anthony Fischer

Michael Mishaeli

Ashish V Choubal

Hisham Shafi

Rinat Rappoport

Nagabhushan Chitlur

Oron Lenz

Sanjeev S Sahagirdar

Martin Guy Dixon

Edward Thomas Grochowski

Bryant E Bigbee

Yazmin A Santiago

Russel J Fenger

Guarav Khanna

A processor includes a first mode where the processor is not to use packed data operation masking, and a second mode where the processor is to use packed data operation masking. A decode unit to decode an unmasked packed data instruction for a given packed data operation in the first mode, and to decode a masked packed data instruction for a masked version of the given packed data operation in the second mode. The instructions have a same instruction length. The masked instruction has bit(s) to specify a mask. Execution unit(s) are coupled with the decode unit. The execution unit(s), in response to the decode unit decoding the unmasked instruction in the first mode, to perform the given packed data operation. The execution unit(s), in response to the decode unit decoding the masked instruction in the second mode, to perform the masked version of the given packed data operation.

Packed data element predication processors, methods, systems, and instructions

A heterogeneous processor architecture and a method of booting a heterogeneous processor is described. A processor according to one embodiment comprises: a set of large physical processor cores; a set of small physical processor cores having relatively lower performance processing capabilities and relatively lower power usage relative to the large physical processor cores; and a package unit, to enable a bootstrap processor. The bootstrap processor initializes the homogeneous physical processor cores, while the heterogeneous processor presents the appearance of a homogeneous processor to a system firmware interface.

Method for booting a heterogeneous system and presenting a symmetric core view

A processor of an aspect includes a set of registers capable of storing packed data. An execution unit is coupled with the set of registers. The execution unit is to access the set of registers in at least two different ways in response to instructions. The at least two different ways include a first way in which the set of registers are to represent a plurality of N-bit registers. The at least two different ways also include a second way in which the set of registers are to represent a single register of at least 2N-bits. In one aspect, the at least 2N-bits is to be at least 256-bits.

Processors, methods, and systems to access a set of registers as either a plurality of smaller registers or a combined larger register

A processor of an aspect includes at least one lower processing capability and lower power consumption physical compute element and at least one higher processing capability and higher power consumption physical compute element. Migration performance benefit evaluation logic is to evaluate a performance benefit of a migration of a workload from the at least one lower processing capability compute element to the at least one higher processing capability compute element, and to determine whether or not to allow the migration based on the evaluated performance benefit. Available energy and thermal budget evaluation logic is to evaluate available energy and thermal budgets and to determine to allow the migration if the migration fits within the available energy and thermal budgets. Workload migration logic is to perform the migration when allowed by both the migration performance benefit evaluation logic and the available energy and thermal budget evaluation logic.

Selective migration of workloads between heterogeneous compute elements based on evaluation of migration performance benefit and available energy and thermal budgets

A heterogeneous processor architecture is described. For example, a processor according to one embodiment of the invention comprises: a set of large physical processor cores; a set of small physical processor cores having relatively lower performance processing capabilities and relatively lower power usage relative to the large physical processor cores; virtual-to-physical (V-P) mapping logic to expose the set of large physical processor cores to software through a corresponding set of virtual cores and to hide the set of small physical processor core from the software.

Apparatus and method for heterogeneous processors mapping to virtual cores

A heterogeneous processor architecture is described. For example, a processor according to one embodiment of the invention comprises: a set of two or more small physical processor cores; at least one large physical processor core having relatively higher performance processing capabilities and relatively higher power usage relative to the small physical processor cores; virtual-to-physical (V-P) mapping logic to expose the set of two or more small physical processor cores to software through a corresponding set of virtual cores and to hide the at least one large physical processor core from the software.

Hetergeneous processor apparatus and method

A processor is operable to process conditional branches. The processor includes instruction fetch logic to fetch a conditional short forward branch. The conditional short forward branch is to include a conditional branch instruction and a set of one or more instructions that are to sequentially follow the conditional branch instruction in program order. The set of the one or more instructions are between the conditional branch instruction and a forward branch target instruction that is to be indicated by the conditional branch instruction. The processor also includes instruction conversion logic coupled with the instruction fetch logic. The instruction conversion logic is to convert the conditional short forward branch to a computationally equivalent set of one or more predicated instructions. Other processors are also disclosed, as are various methods and systems.

Converting conditional short forward branches to computationally equivalent predicated instructions

A heterogeneous processor architecture is described. For example, a processor according to one embodiment of the invention comprises: a first set of one or more physical processor cores having first processing characteristics; a second set of one or more physical processor cores having second processing characteristics different from the first processing characteristics; virtual-to-physical (V-P) mapping logic to expose a plurality of virtual processors to software, the plurality of virtual processors to appear to the software as a plurality of homogeneous processor cores, the software to allocate threads to the virtual processors as if the virtual processors were homogeneous processor cores; wherein the V-P mapping logic is to map each virtual processor to a physical processor within the first set of physical processor cores or the second set of physical processor cores such that a thread allocated to a first virtual processor by software is executed by a physical processor mapped to the first virtual processor from the first set or the second set of physical processors.

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Santa Clara, CA, United States of America

Mishali Naik