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Refine LHCb analysis example #741

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merged 10 commits into from
Jun 14, 2023
Merged

Refine LHCb analysis example #741

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1fbb958
Improve terminal output
bernhardmgruber May 31, 2023
9372192
Switch to C++20
bernhardmgruber May 31, 2023
be58ae8
Show how to download the input file
bernhardmgruber May 31, 2023
cbe6d1b
Add missing columns and preserve file order
bernhardmgruber May 31, 2023
717de86
Avoid "_copy" in dumped ROOT histograms
bernhardmgruber Jun 5, 2023
1ab0fb6
Add another mapping
bernhardmgruber Jun 5, 2023
70f4fff
Refactor file writing
bernhardmgruber Jun 5, 2023
e4c149d
All to customize bits for layout 6 and 8
bernhardmgruber Jun 7, 2023
b13e6ff
Dump smaller layout visualization
bernhardmgruber Jun 7, 2023
4b2f936
Including missing bitpack runs
bernhardmgruber Jun 7, 2023
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2 changes: 1 addition & 1 deletion examples/root/lhcb_analysis/CMakeLists.txt
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Expand Up @@ -10,7 +10,7 @@ if (NOT TARGET llama::llama)
find_package(llama REQUIRED)
endif()
add_executable(${PROJECT_NAME} lhcb.cpp)
#target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_20)
target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_20)
target_link_libraries(${PROJECT_NAME} PRIVATE
ROOT::Hist ROOT::Graf ROOT::Gpad ROOT::ROOTNTuple llama::llama OpenMP::OpenMP_CXX)
if (MSVC)
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7 changes: 3 additions & 4 deletions examples/root/lhcb_analysis/README.md
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Expand Up @@ -2,9 +2,8 @@ This example is a LLAMA version from the IO benchmark found here:
https://github.com/jblomer/iotools/blob/master/lhcb.cxx

The lhcb analysis example requires an input file, which can be downloaded here:
https://root.cern/files/RNTuple/

The file is typically called B2HHH~zstd.ntuple

https://root.cern/files/RNTuple/.
The file is typically called B2HHH~zstd.ntuple, so you can run:
`curl https://root.cern/files/RNTuple/B2HHH~zstd.ntuple -o B2HHH~zstd.ntuple`
If you get an error due to a version incompatibility of the file, try this workaround:
https://github.com/jblomer/iotools/issues/9
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