Back to the main page of this manual  Input reference of CP2K version 8.0 
CP2K_INPUT /
GLOBAL /
DBCSR /
TENSOR
TAS_SPLIT_FACTOR {Real} 

Parameter for hybrid DBCSRTAS matrixmatrix 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 Cannonbased (s=1) and a small value (> 0) makes the multiplication based on TAS algorithm (s=number of MPI ranks) [Edit on GitHub]  
This keyword cannot be repeated and it expects precisely one real.  
Default value:
1.00000000E+000 
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