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initial version 1.0
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‎entries/hgrosser/README.md‎

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# 1 billion row Challenge entry by Hartmut Grosser #
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# Version #
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Version 1.0
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# How to compile #
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The program was developed with FPC 3.2.2 and Lazarus 2.2.4
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# How to start #
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```
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Usage: hgrosser <path to input file> [buffer size in kb (Default=128 kb)]
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Example: hgrosser ./measurements.txt 128
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```
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There are no switches like '-i' etc, only values.
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Please start the program 3 times with buffer sizes of '128', '192' and '256'.
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# How the program works #
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The Program works with 1 thread.
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To speed things up:
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- the input file is read via procedure 'blockread' ...
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- into an AnsiString, so that function 'PosEx' can be used to parse it
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- to manage the city names, a 'TFPHashList' is used
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- temperatures are stored as integers (multiplied by 10)

‎entries/hgrosser/src/1brc.lpi‎

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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="12"/>
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<PathDelim Value="\"/>
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<General>
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<Flags>
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<MainUnitHasCreateFormStatements Value="False"/>
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<MainUnitHasTitleStatement Value="False"/>
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<MainUnitHasScaledStatement Value="False"/>
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<CompatibilityMode Value="True"/>
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</Flags>
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<SessionStorage Value="InIDEConfig"/>
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<Title Value="1brc"/>
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<UseAppBundle Value="False"/>
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<ResourceType Value="res"/>
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</General>
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<i18n>
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<EnableI18N LFM="False"/>
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</i18n>
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<BuildModes Count="1">
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<Item1 Name="Default" Default="True"/>
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</BuildModes>
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<PublishOptions>
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<Version Value="2"/>
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</PublishOptions>
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<RunParams>
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<local>
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<LaunchingApplication Use="True" PathPlusParams="\usr\bin\python3 \usr\bin\gnome-terminal -t &apos;Lazarus Run Output&apos; -- $(LazarusDir)\tools\runwait.sh $(TargetCmdLine)"/>
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</local>
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<FormatVersion Value="2"/>
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<Modes Count="1">
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<Mode0 Name="default">
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<local>
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<LaunchingApplication Use="True" PathPlusParams="\usr\bin\python3 \usr\bin\gnome-terminal -t &apos;Lazarus Run Output&apos; -- $(LazarusDir)\tools\runwait.sh $(TargetCmdLine)"/>
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</local>
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</Mode0>
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</Modes>
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</RunParams>
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<Units Count="1">
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<Unit0>
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<Filename Value="1brc.pas"/>
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<IsPartOfProject Value="True"/>
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</Unit0>
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</Units>
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</ProjectOptions>
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<CompilerOptions>
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<Version Value="11"/>
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<Target>
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<Filename Value="../../../bin/hgrosser"/>
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</Target>
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<SearchPaths>
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<IncludeFiles Value="$(ProjOutDir)"/>
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<UnitOutputDirectory Value="../../../bin/lib/$(TargetCPU)-$(TargetOS)"/>
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</SearchPaths>
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<Parsing>
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<SyntaxOptions>
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<SyntaxMode Value="tp"/>
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</SyntaxOptions>
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</Parsing>
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<CodeGeneration>
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<Checks>
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<IOChecks Value="True"/>
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<RangeChecks Value="True"/>
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<OverflowChecks Value="True"/>
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<StackChecks Value="True"/>
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</Checks>
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<VerifyObjMethodCallValidity Value="True"/>
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</CodeGeneration>
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</CompilerOptions>
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<Debugging>
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<Exceptions Count="3">
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<Item1>
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<Name Value="EAbort"/>
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</Item1>
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<Item2>
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<Name Value="ECodetoolError"/>
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</Item2>
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<Item3>
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<Name Value="EFOpenError"/>
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</Item3>
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</Exceptions>
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</Debugging>
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</CONFIG>

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