MCIntegrator++

C++ Library for computing numerical integrals with the Monte Carlo method. Includes some convenient (optional) methods for automatic step calibration, decorrelation and error estimation. Provides a simple interface to execute the MC integration in parallel, via Message Passing Interface (MPI).

In doc/ there is a user manual in pdf (not accurate for current master!) and a config for doxygen.

In examples/, test/ and benchmark/ there are examples, tests and benchmarks for the library.

In script/ we collect useful scripts and in res/ we provide resources, like a true random seed file.

Some subdirectories come with an own README.md file which provides further information.

Supported Systems

Currently, we automatically test the library on Arch Linux (GCC 8) and MacOS (with clang as well as brewed GCC 8). However, in principle any system with C++11 supporting compiler should work.

Requirements

CMake, to use our build process
(optional) a MPI implementation, to use parallelized integration
(optional) valgrind, to run ./run.sh in test/
(optional) pdflatex, to compile the tex file in doc/
(optional) doxygen, to generate doxygen documentation in doc/doxygen

Build the library

Copy the file config_template.sh to config.sh, edit it to your liking and then simply execute the command

./build.sh

Note that we build out-of-tree, so the compiled library and executable files can be found in the directories under ./build/.

First steps

You may want to read doc/user_manual.pdf to get a quick overview of the libraries functionality. However, it is not guaranteed to be perfectly up-to-date and accurate. Therefore, the best way to get your own code started is by studying the examples in examples/. See examples/README.md for further guidance.

Multi-threading: MPI

This library supports multi-threaded MC integration with a distributed-memory paradigm, thanks to Message Passing interface (MPI).