Netlib Scalapack

Scalapack with CMake enhancements to make Scalapack easier to use directly in other projects. The Scalapack source code is unmodified. MPI is required for Scalapack. Scalapack 2.1 works with OpenMPI 4.x, while Scalapack 2.0 worked with OpenMPI < 4.

Prereq

• Linux: apt install cmake gfortran libopenmpi-dev liblapack-dev
• Mac: brew install gcc cmake open-mpi lapack

Windows MSYS2

pacman -S mingw-w64-x86_64-gcc-fortran mingw-w64-x86_64-msmpi mingw-w64-x86_64-lapack

and install Microsoft MS-MPI to get mpiexec.exe

Build

cmake -B build
cmake --build build

# optional self-tests
ctest --test-dir build

To avoid searching for Lapack (forcing Lapack to be built) use CMake option:

cmake -B build -Dfind_lapack=off

options

The default is to build real32, real64. The options for precision are just like LAPACK:

option(BUILD_SINGLE "Build single precision real" ON)
option(BUILD_DOUBLE "Build double precision real" ON)
option(BUILD_COMPLEX "Build single precision complex")
option(BUILD_COMPLEX16 "Build double precision complex")

Notes

Scalapack is included with Intel oneAPI, for Windows as well.