Bug#961186: scalapack: provide a 64-bit build

Source: scalapack Followup-For: Bug #961186 64 bit support now added upstream (git not yet released), -fdefault-integer-8 (perhaps also -DInt=long ?) with 64-bit BLAS. https://github.com/Reference-ScaLAPACK/scalapack/commit/8ab1b6ed1ed7630a4c166d548fd7a3bc62784bb2 https://github.com/Reference-Sca

Bug#961186: scalapack: provide a 64-bit build

Source: scalapack Severity: normal We're discussing introducing a 64 bit-build for the computational stack. This refers to 64-bit addressing to cells in meshes, etc. c.f. Bug#953116 (petsc) Bug#961108 (openmpi) https://lists.debian.org/debian-science/2020/05/msg00051.html BLAS is already 64-bit