Low energy consumption mantissa multiplication for floating point multiply-add operations
Patent
·
OSTI ID:1576396
A floating point multiply-add unit having inputs coupled to receive a floating point multiplier data element, a floating point multiplicand data element, and a floating point addend data element. The multiply-add unit including a mantissa multiplier to multiply a mantissa of the multiplier data element and a mantissa of the multiplicand data element to calculate a mantissa product. The mantissa multiplier including a most significant bit portion to calculate most significant bits of the mantissa product, and a least significant bit portion to calculate least significant bits of the mantissa product. The mantissa multiplier has a plurality of different possible sizes of the least significant bit portion. Energy consumption reduction logic to selectively reduce energy consumption of the least significant bit portion, but not the most significant bit portion, to cause the least significant bit portion to not calculate the least significant bits of the mantissa product.
- Research Organization:
- Intel Corp., Santa Clara, CA (United States)
- Sponsoring Organization:
- USDOE
- Assignee:
- Intel Corporation (Santa Clara, CA)
- Patent Number(s):
- 10,402,168
- Application Number:
- 15/283,295
- OSTI ID:
- 1576396
- Country of Publication:
- United States
- Language:
- English
Similar Records
A pipelined 50-MHz CMOS 64-bit floating-point arithmetic processor
Open source high performance floating-point modules.
Generating and executing programs for a floating point single instruction multiple data instruction set architecture
Journal Article
·
Sun Oct 01 00:00:00 EDT 1989
· IEEE Journal of Solid-State Circuits (Institute of Electrical and Electronics Engineers); (USA)
·
OSTI ID:7131067
Open source high performance floating-point modules.
Conference
·
Tue Jan 31 23:00:00 EST 2006
·
OSTI ID:943916
Generating and executing programs for a floating point single instruction multiple data instruction set architecture
Patent
·
Tue Apr 16 00:00:00 EDT 2013
·
OSTI ID:1083443