hermes::DPE Class Reference

#include <data_placement_engine.h>

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Public Member Functions
	DPE (PlacementPolicy policy)
virtual Status	Placement (const std::vector< size_t > &blob_sizes, const std::vector< u64 > &node_state, const std::vector< TargetID > &targets, const api::Context &ctx, std::vector< PlacementSchema > &output)=0

Public Attributes
std::vector< f32 >	bandwidths

Protected Member Functions
std::vector< int >	GetValidSplitChoices (size_t blob_size)
bool	SplitBlob (size_t blob_size)
void	GetSplitSizes (size_t blob_size, std::vector< size_t > &output)

Protected Attributes
PlacementPolicy	policy_

Detailed Description

A class to represent data placement engine

Constructor & Destructor Documentation

DPE()

hermes::DPE::DPE ( PlacementPolicy  policy )

inlineexplicit

constructor function

Member Function Documentation

Placement()

virtual Status hermes::DPE::Placement ( const std::vector< size_t > &  blob_sizes, const std::vector< u64 > &  node_state, const std::vector< TargetID > &  targets, const api::Context &  ctx, std::vector< PlacementSchema > &  output  )

pure virtual

set placement schema given BLOB sizes, node states, targets, and context.

Implemented in hermes::RoundRobin, hermes::Random, and hermes::MinimizeIoTime.

GetValidSplitChoices()

std::vector< int > hermes::DPE::GetValidSplitChoices ( size_t  blob_size )

protected

get valid choices for splitting BLOB.

< KB

< KB

< KB

< MB

< MB

< MB

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SplitBlob()

bool hermes::DPE::SplitBlob ( size_t  blob_size )

protected

< KB

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GetSplitSizes()

void hermes::DPE::GetSplitSizes ( size_t  blob_size, std::vector< size_t > &  output  )

protected

get split sizes for blob_size.

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Member Data Documentation

policy_

PlacementPolicy hermes::DPE::policy_

protected

data placement policy

bandwidths

std::vector<f32> hermes::DPE::bandwidths

a vector of bandwidths

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The documentation for this class was generated from the following files:

• /home/runner/work/hermes/hermes/src/data_placement_engine.h
• /home/runner/work/hermes/hermes/src/data_placement_engine.cc