Section TENSOR

• Configuration options for Tensors.

• Section path: CP2K_INPUT / GLOBAL / DBCSR / TENSOR

• This section cannot be repeated.

• Subsections

  • none

• Keywords

  • TAS_SPLIT_FACTOR

• Keyword descriptions

  TAS_SPLIT_FACTOR
  	TAS_SPLIT_FACTOR {Real}
  	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)
  	This keyword cannot be repeated and it expects precisely one real.
  	Default value: 1.00000000E+000