ScaLAPACK¶
About¶
ScaLAPACK is a LAPACK replacement/enhancement that runs on parallel distributed memory machines (using MPI).
Supported versions¶
To check which ScaLAPACK versions and build types are currently supported on Discoverer, execute on the login node:
module avail scalapack
Note
Currently, we support only GCC build that works in conjunction with Open MPI 4.1.6 build. All other builds should be considered non-supported or retired.
The recipe used for compiling the programming code of ScaLAPACK on Discoverer, as well as the logs collected during the building process, are publicly available at:
https://gitlab.discoverer.bg/vkolev/recipes/-/tree/main/scalapack
Warning
Intel oneAPI comes with its own ScaLAPACK library, which is included in MKL. We do not recommend the use of that ScaLAPACK library installation. There is a general problem with using Intel MPI library on Discoverer compute nodes, which affects the MPI-based MKL subroutines.
Loading/Compiler affinity¶
To obtain access to the latest LAPACK load the environment module that matches your compiler requirements and MPI library affinity:
Intel oneAPI builds (retired)¶
- Open MPI
module load scalapack/2/latest-intel-openmpi
- MPICH
module load scalapack/2/latest-intel-mpich
NVIDIA HPC SDK build (retired)¶
- Open MPI
module load scalapack/2/latest-nvidia-openmpi
- MPICH
module load scalapack/2/latest-nvidia-mpich
AMD AOCC build (retired)¶
- Open MPI
module load scalapack/2/latest-aocc-openmpi
- MPICH
module load scalapack/2/latest-aocc-mpich
Getting help¶
See Getting help