Intro

The vecmath project provides a collection of vectorized based math utilities based on VecCore library.

Requirements

• VecCore(starting from cee2341)
• Optional: Vc, UMESIMD as VecCore backends

How to use.

1) Use VecMath installed package

Install this library.

mkdir build/ && cd build/
cmake ../ -DCMAKE_INSTALL_PREFIX=$PREFIX \
	      -DVecCore_DIR="path to dir with VecCoreConfig.cmake"  #if VecCore is not installed inside prefix
make install

Use it from your project

In your CMakeLists.txt:

find_package(VecMath 0.1.0 REQUIRED COMPONENTS Vc) #or any other VecCore backend

#...

target_link_libraries(YOUR_TARGET VecMath::VecMath)

or if you can't use new cmake target_link_libraries use old interface

include_directories(${VecMath_INCLUDE_DIRS})
add_definitions(${VecMath_DEFINITIONS})

target_link_libraries(YOUR_TARGET ${VecMath_LIBRARIES})

Pass this to cmake generation of your project to find VecMath(if it is not in CMAKE_INSTALL_PREFIX): -DVecMath_DIR="Path to dir where VecMathConfig.cmake is installed"

2) Build VecMath in source as a git submodule

Create git submodule in YOU_PROJECT/VecMath pointing to this repository

cd YOUR_PROJECT
git submodule add https://gitlab.cern.ch/GeantV/VecMath.git

In your CMakeLists.txt:

set(VecCore_BACKEND Vc) #or any other VecCore backend
add_subdirectory(VecMath)

#...

target_link_libraries(YOUR_TARGET VecMath)

API

Inside you .cxx file

#include <VecMath/Math.h>
#include <VecMath/Rng.h>