basic concepts
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POLITECNICO DI MILANO
Reconfiguration: basic Reconfiguration: basic conceptsconcepts
Marco D. Santambrogio: [email protected]
3DDRESD 3DDRESD 3rd Edition, Goglio 20083rd Edition, Goglio 2008
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OutlineOutline
Reconfiguration, does stranger
Reconfigurable computingDefinitions5WReconfiguration in everyday lifeReconfigurable Architectures Characterizationbrain to bit
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What’s nextWhat’s next
Reconfiguration, does stranger
Reconfigurable computingDefinitions5WReconfiguration in everyday lifeReconfigurable Architectures Characterizationbrain to bit
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Reconfiguration, does Reconfiguration, does strangerstranger
Recovery
Recovery
from a
from a
damagedamage
Structural Structural modificationmodification
Behavioral Behavioral evolutionevolution
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What’s nextWhat’s next
Reconfiguration, does stranger
Reconfigurable computingDefinitions5WReconfiguration in everyday lifeReconfigurable Architectures Characterizationbrain to bit
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Reconfigurable ComputingReconfigurable Computing
“Reconfigurable computing is intended to fill the gap between hardware and software, achieving potentially
much higher performance than software, while maintaining a higher level of flexibility than hardware”
(K. Compton and S. Hauck, Reconfigurable Computing: a Survey of Systems and Software, 2002)
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Some DefinitionsSome Definitions
Object CodeObject Code: the executable active physical (either HW or SW) implementation of a given functionality
Reconfigurable ComputingReconfigurable Computing: the ability of altering a concrete architecture (microarchitecture), once it has been deployed, to meet at the best the execution mode of object code
Reconfiguration ControllerReconfiguration Controller: the element that is responsible for the physical implementation of a reconfiguration process i.e., in Xilinx FPGA the ICAP controller
Reconfiguration ManagerReconfiguration Manager: the element that is responsible for the management of a reconfiguration process i.e., in ATMEL the AVR microcontroller, in Xilinx the PPC405
RelocationRelocation: the ability of moving an object code from a location to a new one
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5 W5 W
whowho controls the reconfiguration
wherewhere the reconfiguration cotroller is located
whenwhen the configurations are generated
whichwhich is the granularity of the reconfiguration
in whatwhat dimension the reconfiguration operates
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Reconfiguration in everyday Reconfiguration in everyday lifelife
Soccer
Hockey
Football(Complete – Static)
(Partial – Dynamic)
(Partial – Static)
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Reconfigurable Architectures Reconfigurable Architectures CharacterizationCharacterization
SoC (System on Chip)Embedded Vs ExternalComplete Vs PartialDynamic VS Static
SoMC (System on Multipe-Chip)
Embedded Vs External Complete Vs PartialDynamic VS Static
static
Partial CompleteEmbedded
Complete/PartialWho
(a) (b) (c) (d)
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brain to bitbrain to bit
High Level
(brain)
Low Level (bit)
Requirements
System Models
Design SpaceExploration
ImplementationAnd
Optimization
Validation and Verification
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More DefinitionsMore Definitions
CoreCore: a specific representation of a functionality. It is possible, for example, to have a core described in VHDL, in C or in an intermediate representation (e.g. a DFG)
IP-CoreIP-Core: a core described using a HD Language combined with its communication infrastructure (i.e. the bus interface)
Reconfigurable Functional UnitReconfigurable Functional Unit: an IP-Core that can be plugged and/or unplugged at runtime in an already working architecture
Reconfigurable RegionReconfigurable Region: a portion of the device area used to implement a reconfigurable core
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Our scenarioOur scenario
Low Level (bit)
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QuestionsQuestions