Package org.apache.sysds.hops.cost
Class CostEstimatorStaticRuntime
- java.lang.Object
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- org.apache.sysds.hops.cost.CostEstimator
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- org.apache.sysds.hops.cost.CostEstimatorStaticRuntime
 
 
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 public class CostEstimatorStaticRuntime extends CostEstimator 
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Field SummaryFields Modifier and Type Field Description static doubleDEFAULT_MBS_HDFSREAD_BINARYBLOCK_SPARSE
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Constructor SummaryConstructors Constructor Description CostEstimatorStaticRuntime()
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Method SummaryAll Methods Static Methods Concrete Methods Modifier and Type Method Description static doublegetFSReadTime(long dm, long dn, double ds)Returns the estimated read time from local FS.static doublegetFSWriteTime(long dm, long dn, double ds)- 
Methods inherited from class org.apache.sysds.hops.cost.CostEstimatorgetTimeEstimate, getTimeEstimate
 
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Field Detail- 
DEFAULT_MBS_HDFSREAD_BINARYBLOCK_SPARSEpublic static final double DEFAULT_MBS_HDFSREAD_BINARYBLOCK_SPARSE - See Also:
- Constant Field Values
 
 
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Method Detail- 
getFSReadTimepublic static double getFSReadTime(long dm, long dn, double ds)Returns the estimated read time from local FS. NOTE: Does not handle unknowns.- Parameters:
- dm- rows?
- dn- columns?
- ds- sparsity factor?
- Returns:
- estimated local file system read time
 
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getFSWriteTimepublic static double getFSWriteTime(long dm, long dn, double ds)
 
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