Simulation Cluster is a parallel simulation environment,Uses existing simulators as simulation engine,Supports all
 
three major simulators (Incisive/VCS/Questa),A SimCluster master manages Ttime scheduling and signal
 
propagation,Engines run in lock-step and are delta-cycle accurate
 
 
*Powerful analysis helps characterize existing design and simulation runtime data
 
*Auto-partitioning generates a set of Verilog targets to run 
 
*SimCluster manager establishes communication channels and controls various simulation engines  
 
Simulation Analyzer
 
•Profile existing simulation to better guide partitioner
 
       >Runs on existing single process simulation
 
•Analysis data used in pre-partitioning
 
      >Estimates workload per module based on toggle coverage samples
 
      >Finds and characterizes clock domains in gate-level designs
 
          Used for clock-based synchronization during parallel simulation
 
      >Generates design hierarchy report
 
•Analysis data used in post-partitioning
 
•Profiles partition IO’s switching characteristics to better understand process synchronization overhead
 
Partitioning Strategy
 
•SimCluster performs coarse-grained static partitioning
 
      >For a hierarchical design, partition at major block boundaries
 
      >For a flattened gate-level design, partition based on minimal cut and workload balance
 
•A partitioner is provided for easier partitioning
 
      >Supports Verilog RTL/gate and SDF partitioning
 
      >Generates files needed for running SimCluster
 
•Compilation time reduces after partitioning because each partition contains only part of the design
 
•FSDB dumping becomes faster because each partition dumps its own
 
      >Full fsdb can be merged from different partitions after simulation
 
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