Saena

Saena is the name of falcon, the fastest animal, in Avesta (an old Persian book), and this library is supposed to be the falcon in multigrid solvers.

Dependencies

There are some dependencies which are installed automatically by running the install.sh file. Some of those dependencies are ZFP and SuperLU. SuperLU also depends on ParMETIS. The other ones that may be needed to be installed before compiling Saena are the following.

1- Boost:

For Linux this may help:

sudo apt-get install libboost-all-dev

2- Intel MKL:

If you don't already have Intel MKL on your machine, it can be installed in a couple of ways explained on its website:

https://software.intel.com/en-us/get-started-with-mkl-for-linux

The easiest way may be using the newer intel compilers, which includes mkl; Or just installing the standalone version:

https://software.seek.intel.com/performance-libraries

Datatypes

The following datatype are used in Saena:

typedef int    index_t; // index type
typedef long   nnz_t;   // nonzero type
typedef double value_t; // value type

They can be changed in include/data_type.h.

ParMETIS and SuperLU index sizes are set to 32. They can be changed too (they should be changed together):

• ParMETIS: set XSDK_INDEX_SIZE in external/SuperLU_DIST_5.4.0/CMakeLists.txt.
• SuperLU: set IDXTYPEWIDTH in external/parmetis-4.0.3/metis/include/metis.h.