GSLIB

• Gather/Scatter for nearest neighbor data exchange
• XXT solver (parallel direct solver)
• AMG solver
• Robust spectral element interpolation for a given set of points

Build Instructions

The build system relies on GNU Make with the make command. To compile gslib just run:

cd src
make CC=mpicc CFLAGS="-O2"

This will create a library called libgs.a. They key ADDUS determines the name mangling (add underscore) for the Fortran interface.

Applications

[1] Nek5000: Nek5000 is the open-source, highly-scalable, spectral element code.

[2] Nektar++: Nektar++ is the open-source spectral/hp element code.