Parallelism in ScaLAPACK
Level 3 BLAS block operations
- All the reduction routines
Pipelining
- QR Algorithm, Triangular Solvers, classic factorizations
Task parallelism
- Sign function eigenvalue computations
Divide and Conquer
- Tridiagonal and band solvers, symmetric eigenvalue problem and Sign function
Cyclic reduction
- Reduced system in the band solver