Difference between revisions of "SC System"

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The nu+ single core system is defined in the ''nuplus_system.sv'' module, under src/sc/system folder. The following figure depicts the organization of the nu+ Single Core version:
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The NaplesPU single core system is defined in the <code>npu_system.sv</code> module, under src/sc/system folder. The following figure depicts the organization of the NaplesPU Single Core version:
  
[[File:Nup sc system.png|470px|Single Core System]]
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[[File:NPU sc system.png|470px|Single Core System]]
  
 
The single core version instantiates the following modules:
 
The single core version instantiates the following modules:
  
# nu+ core: module nuplus_core (described in [[Core|nu+ core architecture]])
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# NaplesPU core: module <code>npu_core</code> (described in [[Core|NaplesPU core architecture]])
# item interface: nuplus_item_interface module, allows host-device communication and performance info fetching.
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# item interface: <code>npu_item_interface</code> module allows host-device communication and performance info fetching.
# transaction logger: nuplus_core_logger module, which logs both incoming responses from the main memory and issued requests from the core to the memory. This module stores up to CORE_LOG_SIZE (default 512) for the core issued transactions, and MEM_LOG_SIZE (default 512)
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# transaction logger: <code>npu_core_logger</code> module logs both incoming responses from the main memory and issued requests from the core to the memory. This module stores up to CORE_LOG_SIZE (default 512) for the core issued transactions, and MEM_LOG_SIZE (default 512)
# core interface: core_interface module, connects the nu+ core and the cache-controller for the single core version, module sc_cache_controller
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# core interface: <code>core_interface</code> module connects the NaplesPU core and the cache-controller for the single core version, module <code>sc_cache_controller</code>
# cache controller: sc_cache_controller module, the cache controller for the single core version of the nu+ architecture, described in [[SC_CC|Cache Controller]]  
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# cache controller: <code>sc_cache_controller</code> module, the cache controller for the single core version of the NaplesPU architecture, described in [[SC_CC|Cache Controller]]  
# system bus: mux_multimaster module, shared multi-master bus. It allows both the core and the host-interface to concurrently access the main memory and custom devices
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# system bus: <code>mux_multimaster</code> module, shared multi-master bus. It allows both the core and the host-interface to concurrently access the main memory and custom devices
# test device: io_device_test module, an example of a memory mapped custom device in the nu+ system
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# test device: <code>io_device_test</code> module, an example of a memory mapped custom device in the NaplesPU system
# synchronization core: synchronization_core module, acts as the synchronization master allowing thread synchronization through barriers. The module is the same as the many core version, although it requires minor adjustments:
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# synchronization core: <code>synchronization_core</code> module, acts as the synchronization master allowing thread synchronization through barriers. The module is the same as the many core version, although it requires minor adjustments:
  
 
  assign network_available    = 1'b1;
 
  assign network_available    = 1'b1;

Latest revision as of 15:17, 25 June 2019

The NaplesPU single core system is defined in the npu_system.sv module, under src/sc/system folder. The following figure depicts the organization of the NaplesPU Single Core version:

Single Core System

The single core version instantiates the following modules:

  1. NaplesPU core: module npu_core (described in NaplesPU core architecture)
  2. item interface: npu_item_interface module allows host-device communication and performance info fetching.
  3. transaction logger: npu_core_logger module logs both incoming responses from the main memory and issued requests from the core to the memory. This module stores up to CORE_LOG_SIZE (default 512) for the core issued transactions, and MEM_LOG_SIZE (default 512)
  4. core interface: core_interface module connects the NaplesPU core and the cache-controller for the single core version, module sc_cache_controller
  5. cache controller: sc_cache_controller module, the cache controller for the single core version of the NaplesPU architecture, described in Cache Controller
  6. system bus: mux_multimaster module, shared multi-master bus. It allows both the core and the host-interface to concurrently access the main memory and custom devices
  7. test device: io_device_test module, an example of a memory mapped custom device in the NaplesPU system
  8. synchronization core: synchronization_core module, acts as the synchronization master allowing thread synchronization through barriers. The module is the same as the many core version, although it requires minor adjustments:
assign network_available     = 1'b1;
assign ni_account_mess_valid = c2n_account_valid;

Since the single core version of the system has no network, the network availability input port has to be constantly high.