Package org.apache.sysds.hops.estim
Class SparsityEstimator
- java.lang.Object
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- org.apache.sysds.hops.estim.SparsityEstimator
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- Direct Known Subclasses:
EstimatorBasicAvg,EstimatorBasicWorst,EstimatorBitsetMM,EstimatorDensityMap,EstimatorLayeredGraph,EstimatorMatrixHistogram,EstimatorSample,EstimatorSampleRa
public abstract class SparsityEstimator extends Object
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classSparsityEstimator.OpCode
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Field Summary
Fields Modifier and Type Field Description static intMIN_PAR_THRESHOLDstatic booleanMULTI_THREADED_BUILDstatic booleanMULTI_THREADED_ESTIM
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Constructor Summary
Constructors Constructor Description SparsityEstimator()
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description abstract DataCharacteristicsestim(MMNode root)Estimates the output sparsity of a DAG of matrix multiplications for the given operator graph of a single root node.abstract doubleestim(MatrixBlock m, SparsityEstimator.OpCode op)Estimates the output sparsity for a given unary operation.abstract doubleestim(MatrixBlock m1, MatrixBlock m2)Estimates the output sparsity for a single matrix multiplication.abstract doubleestim(MatrixBlock m1, MatrixBlock m2, SparsityEstimator.OpCode op)Estimates the output sparsity for a given binary operation.
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Field Detail
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MULTI_THREADED_BUILD
public static boolean MULTI_THREADED_BUILD
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MULTI_THREADED_ESTIM
public static boolean MULTI_THREADED_ESTIM
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MIN_PAR_THRESHOLD
public static final int MIN_PAR_THRESHOLD
- See Also:
- Constant Field Values
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Method Detail
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estim
public abstract DataCharacteristics estim(MMNode root)
Estimates the output sparsity of a DAG of matrix multiplications for the given operator graph of a single root node.- Parameters:
root- DAG root node- Returns:
- output data characteristics
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estim
public abstract double estim(MatrixBlock m1, MatrixBlock m2)
Estimates the output sparsity for a single matrix multiplication.- Parameters:
m1- left-hand-side operandm2- right-hand-side operand- Returns:
- sparsity
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estim
public abstract double estim(MatrixBlock m1, MatrixBlock m2, SparsityEstimator.OpCode op)
Estimates the output sparsity for a given binary operation.- Parameters:
m1- left-hand-side operandm2- right-hand-side operandop- operator code- Returns:
- sparsity
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estim
public abstract double estim(MatrixBlock m, SparsityEstimator.OpCode op)
Estimates the output sparsity for a given unary operation.- Parameters:
m- left-hand-side operandop- operator code- Returns:
- sparsity
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