|  | VTK
    9.0.1
    | 
 
 
 
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   28 #ifndef vtkBlockDistribution_h 
   29 #define vtkBlockDistribution_h 
   98   return (this->NumElements / this->NumProcessors) +
 
   99     (rank < this->NumElements % this->NumProcessors ? 1 : 0);
 
  106   vtkIdType smallBlockSize = this->NumElements / this->NumProcessors;
 
  107   vtkIdType cutoffProcessor = this->NumElements % this->NumProcessors;
 
  108   vtkIdType cutoffIndex = cutoffProcessor * (smallBlockSize + 1);
 
  110   if (globalIndex < cutoffIndex)
 
  112     return globalIndex / (smallBlockSize + 1);
 
  116     return cutoffProcessor + (globalIndex - cutoffIndex) / smallBlockSize;
 
  132   vtkIdType estimate = rank * (this->NumElements / this->NumProcessors + 1);
 
  133   vtkIdType cutoffProcessor = this->NumElements % this->NumProcessors;
 
  134   if (rank < cutoffProcessor)
 
  140     return estimate - (rank - cutoffProcessor);
 
  
vtkIdType GetProcessorOfElement(vtkIdType globalIndex)
Retrieve the process number in [0, GetNumProcessors()) where the element with the given global index ...
vtkBlockDistribution(vtkIdType N, vtkIdType P)
Create a block distribution with N elements on P processors.
vtkIdType GetLocalIndexOfElement(vtkIdType globalIndex)
Retrieve the local index (offset) on the processor determined by GetProcessorOfElement that refers to...
A helper class that manages a block distribution of N elements of data.
vtkIdType GetBlockSize(vtkIdType rank)
Get the block size for the processor with the given rank.
vtkIdType GetNumProcessors()
Retrieves the number of processors for which this block distribution was built.
vtkIdType GetFirstGlobalIndexOnProcessor(vtkIdType rank)
Retrieve the first global index stored on the processor with the given rank.
vtkIdType GetNumElements()
Retrieves the number of elements for which this block distribution was built.
vtkIdType GetGlobalIndex(vtkIdType localIndex, vtkIdType rank)
Retrieve the global index associated with the given local index on the processor with the given rank.