g++ -std=c++11 -mavx ./main.cpp
SpMV method: choose one of FULL, COO, CSR, ELL, or DIA options.
Using Vector Sparsity: if you want to be used choose y, otherwise n.
Using SIMD: if you want to be used choose y, otherwise n. (note: it is implemented for COO, CSR, and ELL methods.)
Parallelism: if you want to run parallel choose y, otherwise n. (note: it is implemented for CSR and ELL methods.)