article · 2013

IEEE Computer Architecture Letters Operand Registers and Explicit Operand Forwarding

James Balfour, R. Curtis Harting, William J. Dally Fellow

Cited by 0Abstract and details only

Abstract

Abstract—Operand register files are small, inexpensive register files that are integrated with function units in the execute stage of the pipeline, effectively extending the pipeline operand registers into register files. Explicit operand forwarding lets software opportunistically orchestrate the routing of operands through the forwarding network to avoid writing ephemeral values to registers. Both mechanisms let software capture short-term reuse and locality close to the function units, improving energy efficiency by allowing a significant fraction of operands to be delivered from inexpensive registers that are integrated with the function units. An evaluation shows that capturing operand bandwidth close to the function units allows operand registers to reduce the energy consumed in the register files and forwarding network of an embedded processor by 61%, and allows explicit forwarding to reduce the energy consumed by 26%. Index Terms—energy efficient register organization, operand registers, explicit operand forwarding, embedded processor I.

Cite this paper

APA 7

Balfour, J., Harting, R. C., & Fellow, W. J. D. (2013). IEEE Computer Architecture Letters Operand Registers and Explicit Operand Forwarding.

MLA 9

Balfour, James, et al. “IEEE Computer Architecture Letters Operand Registers and Explicit Operand Forwarding.” 2013.

Chicago

Balfour, James, R. Curtis Harting, and William J. Dally Fellow. 2013. “IEEE Computer Architecture Letters Operand Registers and Explicit Operand Forwarding.”

Harvard

Balfour, J., Harting, R.C. and Fellow, W.J.D. (2013) ‘IEEE Computer Architecture Letters Operand Registers and Explicit Operand Forwarding’.

BibTeX

@article{balfour2013ieee,
  title = {{IEEE Computer Architecture Letters Operand Registers and Explicit Operand Forwarding}},
  author = {Balfour, James and Harting, R. Curtis and Fellow, William J. Dally},
  year = {2013}
}

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