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Control processing

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Miguel Martinez
Miguel Martinez

This document discusses resource analysis and configuration analysis for signal processor design. It explains that the resource analysis will guide design choices and may require modifying the algorithm's data flow to fit available processing resources. It then describes the configuration analysis step, where a hardware configuration is selected and the data flow graphs are partitioned to calculate resource requirements. Various partitionings are tried and tested until an acceptable design is achieved that meets all performance requirements.

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Control processing Data estorage Data communication Signal processing Element resource parameters Throughput instructions per second Arithmetic capacity Signal processing execution time Data flow Memory storage capacity (data, program) Data formats / wordlengths Addressing capabilities Bandwich (read, write) Input output Interfaces to other elements Data formas Bandwidth 1.4 signal processor resource parameters Designed, the resource analysis will drive desing choices. For exiting signal processors, the resource analysis may dictate that the algorithm data flow be reworked to fit into the available processing resources. A methodology for perfoming the resource analysis is presented in chapter 10. Step 5. Configuration analysis In the configuration analysis step we assign a hardware configuration and partition the data flow graphs to the elements of the configuration. The processing resource requeriment are calculated for the defined configuration based on the partitioned processing. Various parti tionings are tried,
and the partitioning with the lowest resource utilization is selected. If none of the partitioning alternatives are acceptable, the configuration is modified based on the resources required for the case that most closely fits the configuration. Concurrently , the configurations non-signal-processing performance is estimated. If all requirements are met, the design is finished; otherwise, the analysis must be iterated until an acceptable design is achieved. This can result in a reduction in performance requirements to achieve an acceptable design. Relationship of chpters To system design methodology Chapter 2 is key to step 2 (signal analysis) and step 3 (signal processing design) of the system design methodology. Chapter 3 provides a signal analysis

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Control processing

  • 1. Control processing Data estorage Data communication Signal processing Element resource parameters Throughput instructions per second Arithmetic capacity Signal processing execution time Data flow Memory storage capacity (data, program) Data formats / wordlengths Addressing capabilities Bandwich (read, write) Input output Interfaces to other elements Data formas Bandwidth 1.4 signal processor resource parameters Designed, the resource analysis will drive desing choices. For exiting signal processors, the resource analysis may dictate that the algorithm data flow be reworked to fit into the available processing resources. A methodology for perfoming the resource analysis is presented in chapter 10. Step 5. Configuration analysis In the configuration analysis step we assign a hardware configuration and partition the data flow graphs to the elements of the configuration. The processing resource requeriment are calculated for the defined configuration based on the partitioned processing. Various parti tionings are tried,
  • 2. and the partitioning with the lowest resource utilization is selected. If none of the partitioning alternatives are acceptable, the configuration is modified based on the resources required for the case that most closely fits the configuration. Concurrently , the configurations non-signal-processing performance is estimated. If all requirements are met, the design is finished; otherwise, the analysis must be iterated until an acceptable design is achieved. This can result in a reduction in performance requirements to achieve an acceptable design. Relationship of chpters To system design methodology Chapter 2 is key to step 2 (signal analysis) and step 3 (signal processing design) of the system design methodology. Chapter 3 provides a signal analysis