TENSOR

Configuration options for Tensors. [Edit on GitHub]

Keywords

• TAS_SPLIT_FACTOR

Keyword descriptions

TAS_SPLIT_FACTOR: real = 1.00000000E+000

Parameter for hybrid DBCSR-TAS matrix-matrix multiplication algorithm: a TAS matrix is split into s submatrices with s = N_max/(N_min*f) with f given by this parameter and N_max/N_min the max/min occupancies of the matrices involved in a multiplication. A large value makes the multiplication Cannon-based (s=1) and a small value (> 0) makes the multiplication based on TAS algorithm (s=number of MPI ranks) [Edit on GitHub]