18143990. SPECULATIVE REGISTER RECLAMATION simplified abstract (Hewlett Packard Enterprise Development LP)

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SPECULATIVE REGISTER RECLAMATION

Organization Name

Hewlett Packard Enterprise Development LP

Inventor(s)

Sanyam Mehta of Hopkins MN (US)

SPECULATIVE REGISTER RECLAMATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 18143990 titled 'SPECULATIVE REGISTER RECLAMATION

The abstract describes a system that manages the allocation of logical registers to physical registers in a computer processor based on the execution patterns of instructions.

  • The system reassigns a logical register to a different physical register if the current and prior instructions are executed in different iterations.
  • If the current logical register was previously mapped to a specific physical register, the system redefines the mapping to optimize performance.
  • The system releases a physical register for reuse if it is eligible for early release and the current and original instructions are executed in the same or consecutive iterations.

Potential Applications: - This technology can be applied in high-performance computing systems to optimize register allocation and improve overall processor efficiency. - It can also be used in embedded systems and real-time applications where efficient resource management is crucial.

Problems Solved: - Efficient register allocation is essential for maximizing processor performance, and this system addresses the challenges associated with dynamic register management. - By optimizing register allocation based on instruction execution patterns, the system helps reduce bottlenecks and improve overall system efficiency.

Benefits: - Improved processor performance and efficiency. - Enhanced resource utilization and reduced latency in executing instructions.

Commercial Applications: Optimizing register allocation in high-performance computing systems, embedded systems, and real-time applications can lead to faster processing speeds, improved system responsiveness, and overall better performance in various computing environments.

Questions about the technology: 1. How does this system compare to traditional register allocation methods in terms of performance and efficiency? 2. Are there any limitations or constraints to consider when implementing this technology in different computing systems?


Original Abstract Submitted

A system determines an original instruction with a first logical register (LR) mapped to a first physical register (PR). The system determines a current instruction with a current LR. A prior instruction is associated with a second LR mapped to a second PR. The system allocates the current LR to a third PR. Responsive to determining that the current and prior instructions are executed in different iterations, the system marks the second PR as not eligible for early release. Responsive to determining that the current LR is previously mapped to the first PR, the allocation comprises a redefinition of the first LR. Responsive to determining that the first PR is eligible for early release and that the current and original instructions are executed in the same or consecutive iterations, the system releases the first PR based upon the redefinition and not the prior instruction completing or the current instruction committing.

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