Difference between revisions of "The NaplesPU Hardware architecture"

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The '''nu+''' manycore is a parametrizable regular mesh Network on Chip (NoC) of configurable tile, developed by CeRICT in the framework of the MANGO FETHPC project. The main objective of \nuplus is to enable resource-efficient HPC based on special-purpose customized hardware. Our aim is to build an application-driven architecture to achieve the best hardware/software configuration for any data-parallel kernel. Specialized data-parallel accelerators have been known to provide higher efficiency than general-purpose processors for codes with significant amounts of regular data-level parallelism (DLP). However every parallel kernel has its own \textit{ideal} configuration.
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The '''nu+''' manycore is a parametrizable regular mesh Network on Chip (NoC) of configurable tile, developed by CeRICT in the framework of the MANGO FETHPC project. The main objective of \nuplus is to enable resource-efficient HPC based on special-purpose customized hardware. Our aim is to build an application-driven architecture to achieve the best hardware/software configuration for any data-parallel kernel. Specialized data-parallel accelerators have been known to provide higher efficiency than general-purpose processors for codes with significant amounts of regular data-level parallelism (DLP). However every parallel kernel has its own ideal configuration.
  
 
Each nu+ tile has the same basic components, it provides a configrable GPU-like open-source softcore meant to be used as a configurable FPGA overlay. This HPC-oriented accelerator merges the SIMT paradigm with vector processor model. Futhermore, each tile has a Cache Controller and a Directory Controller, those components handle data coherence between different cores in different tiles.
 
Each nu+ tile has the same basic components, it provides a configrable GPU-like open-source softcore meant to be used as a configurable FPGA overlay. This HPC-oriented accelerator merges the SIMT paradigm with vector processor model. Futhermore, each tile has a Cache Controller and a Directory Controller, those components handle data coherence between different cores in different tiles.
  
[[File:Manycore.png|400px|nu+ manycore architecture]]
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[[File:Manycore.png|800px|nu+ manycore architecture]]
  
 
User design can set an high number of parameter for every need, such as:  
 
User design can set an high number of parameter for every need, such as:  

Revision as of 15:41, 20 September 2017

The nu+ manycore is a parametrizable regular mesh Network on Chip (NoC) of configurable tile, developed by CeRICT in the framework of the MANGO FETHPC project. The main objective of \nuplus is to enable resource-efficient HPC based on special-purpose customized hardware. Our aim is to build an application-driven architecture to achieve the best hardware/software configuration for any data-parallel kernel. Specialized data-parallel accelerators have been known to provide higher efficiency than general-purpose processors for codes with significant amounts of regular data-level parallelism (DLP). However every parallel kernel has its own ideal configuration.

Each nu+ tile has the same basic components, it provides a configrable GPU-like open-source softcore meant to be used as a configurable FPGA overlay. This HPC-oriented accelerator merges the SIMT paradigm with vector processor model. Futhermore, each tile has a Cache Controller and a Directory Controller, those components handle data coherence between different cores in different tiles.

nu+ manycore architecture

User design can set an high number of parameter for every need, such as:

  • NoC topology and Tile number.
  • Threads per core number. Each thread has a different PC, so one core can executes as many program as many threads it has.
  • Hardware lanes per thread. Each thread can be a vector operation (here called hardware lane).
  • Register file size (scalar and vector).
  • L1 and L2 cache size and way number.


There are all the hardware main section. Each of them covers important aspects of the hardware.

Hardware sections

nu+ core architecture

Coherence architecture

Network architecture

Synchronization architecture

DSU architecture