Language

VT conforms to and requires C++17.

Library Dependencies

• MPI 3+
• OpenMP 3+ (optional, if threading is enabled)

The remainder of libraries are all embedded with the proper version in VT's source code. For a list of the libraries (along with the associated license agreements for them) that VT embeds, refer to Third-Party Libraries (TPLs)

Supported Compilers

A supported compiler is one which a mainline VT build SHOULD be able to target. Other compilers are expected to work if they sufficiently implement the C++17 standard.

These are chosen due to usage in research and HPC builds. It is recommended to use newer compiler versions whenever possible.

• GNU compilers (gcc) >= 8.2
• Clang/llvm (clang) >= 8.0
• Intel compilers (icc) >= 19.0.5
• NVidia cuda compiler (nvcc) (10.1, 11.0)
• Portland Group (pgi) (??)
• IBM compilers (xlc) (??)

The list of supported compilers (and minimum versions) can change with newer VT releases.

Current Build Status Configurations

Branch	Architecture	Compiler Type	Compiler Version	Status
develop	ubuntu 18.04	GNU	gcc-8
develop	ubuntu 18.04	GNU	gcc-9
develop	ubuntu 18.04	GNU	gcc-10
develop	Mac OS X	Clang	clang-8
develop	alpine	Clang	clang-8
develop	ubuntu 18.04	Intel	icpx
develop	ubuntu 18.04	Intel	icpc
develop	ubuntu 18.04	Nvidia	nvcc-10.1
develop	ubuntu 18.04	Nvidia	nvcc-11.0

Compiler Features

Tracing

Tracing requires __PRETTY_FUNCTION__, as first implemented as a GCC extension.