RooFit::MultiProcess::HeatmapAnalyzer Class Reference

Reads and processes logfiles produced by RooFit::MultiProcess::ProcessTimer.

RooFit::MultiProcess::ProcessTimer records timings of multiple processes simultaneously and allows for these timings to be written out in json format, one for each process. This class, the HeatmapAnalyzer, can read these json files and produce a heatmap from them with partial derivatives on the y-axis, likelihood evaluations on the x-axis, and time expenditures on the z-axis. This class also contains some convenience functions for inspecting these log files.

Note that this class requires the logfiles to contain three specific keys in the json:

• master:gradient containing an array of gradient timestamps
• *eval_task*<task_number> containing an array of task evaluation timestamps.
• *eval_partition* containing an array of partition evaluation timestamps

Definition at line 28 of file HeatmapAnalyzer.h.

Public Member Functions
	HeatmapAnalyzer (std::string const &logs_dir)
	HeatmapAnalyzer Constructor.
std::unique_ptr< TH2I >	analyze (int analyzed_gradient)
	This method is the main functionality in this class.
json const	getMetadata ()
std::vector< std::string > const	getPartitionNames ()
std::vector< std::string > const	getTaskNames ()

Private Member Functions
std::string	findTaskForDuration (json durations, int start_t, int end_t)
void	sortTaskNames (std::vector< std::string > &task_names)

Private Attributes
std::vector< json >	durations_
std::vector< std::string >	eval_partitions_names_
json	gradients_
TH2I	matrix_
json	metadata_
std::vector< std::string >	tasks_names_

#include <RooFit/MultiProcess/HeatmapAnalyzer.h>

Constructor & Destructor Documentation

HeatmapAnalyzer()

RooFit::MultiProcess::HeatmapAnalyzer::HeatmapAnalyzer

(

std::string const &

logs_dir

)

HeatmapAnalyzer Constructor.

This method reads the input files in the folder specified by the user and creates internal attributes used by the other methods in this class.

Parameters

[in]

logs_dir

Directory where log files are stored in the format outputted by RooFit::MultiProcess::ProcessTimer. There can be other files in this directory as well.

Definition at line 47 of file HeatmapAnalyzer.cxx.

Member Function Documentation

analyze()

std::unique_ptr< TH2I > RooFit::MultiProcess::HeatmapAnalyzer::analyze

(

int

analyzed_gradient

)

This method is the main functionality in this class.

It does the heavy lifting of matching duration timestamps to tasks and partition evaluations.

Parameters

[in]

analyzed_gradient

Gradient to analyze. For example, setting to 1 analyzes the first gradient (ordered by time) in the logs.

Definition at line 92 of file HeatmapAnalyzer.cxx.

findTaskForDuration()

std::string RooFit::MultiProcess::HeatmapAnalyzer::findTaskForDuration ( json  durations, int  start_t, int  end_t  )

private

Definition at line 179 of file HeatmapAnalyzer.cxx.

getMetadata()

json const RooFit::MultiProcess::HeatmapAnalyzer::getMetadata

(

)

Definition at line 174 of file HeatmapAnalyzer.cxx.

getPartitionNames()

std::vector< std::string > const RooFit::MultiProcess::HeatmapAnalyzer::getPartitionNames

(

)

Definition at line 169 of file HeatmapAnalyzer.cxx.

getTaskNames()

std::vector< std::string > const RooFit::MultiProcess::HeatmapAnalyzer::getTaskNames

(

)

Definition at line 164 of file HeatmapAnalyzer.cxx.

sortTaskNames()

void RooFit::MultiProcess::HeatmapAnalyzer::sortTaskNames ( std::vector< std::string > &  task_names )

private

Definition at line 194 of file HeatmapAnalyzer.cxx.

Member Data Documentation

durations_

std::vector<json> RooFit::MultiProcess::HeatmapAnalyzer::durations_

private

Definition at line 49 of file HeatmapAnalyzer.h.

eval_partitions_names_

std::vector<std::string> RooFit::MultiProcess::HeatmapAnalyzer::eval_partitions_names_

private

Definition at line 52 of file HeatmapAnalyzer.h.

gradients_

json RooFit::MultiProcess::HeatmapAnalyzer::gradients_

private

Definition at line 47 of file HeatmapAnalyzer.h.

matrix_

TH2I RooFit::MultiProcess::HeatmapAnalyzer::matrix_

private

Definition at line 45 of file HeatmapAnalyzer.h.

metadata_

json RooFit::MultiProcess::HeatmapAnalyzer::metadata_

private

Definition at line 48 of file HeatmapAnalyzer.h.

tasks_names_

std::vector<std::string> RooFit::MultiProcess::HeatmapAnalyzer::tasks_names_

private

Definition at line 51 of file HeatmapAnalyzer.h.