| Back to the main page of this manual | Input reference of CP2K version 2022.1 | 
CP2K_INPUT /
               FORCE_EVAL /
               PW_DFT /
               CONTROL| BETA_CHUNK_SIZE {Integer} | |
| Number of atoms in a chunk of beta-projectors. | |
| This keyword cannot be repeated and it expects precisely one integer. | |
| Default value: 256 | 
| CYCLIC_BLOCK_SIZE {Integer} | |
| Block size for ScaLAPACK and ELPA. | |
| This keyword cannot be repeated and it expects precisely one integer. | |
| Default value: -1 | 
| FFT_MODE {Keyword} | |
| Coarse grid FFT mode (`serial` or `parallel`). | |
| This keyword cannot be repeated and it expects precisely one keyword. | |
| Default value: SERIAL | |
| List of valid keywords: 
 | 
| GEN_EVP_SOLVER_NAME {Keyword} | |
| Generalized eigen-value solver to use. | |
| This keyword cannot be repeated and it expects precisely one keyword. | |
| Default value: AUTO | |
| List of valid keywords: 
 | 
| MPI_GRID_DIMS {Integer} {Integer} | |
| the mpi grid is setting the parameters for blacs grid / band parallelisation, the rest going to k-point parallelization. | |
| This keyword cannot be repeated and it expects precisely 2 integers. | |
| Default values: 1 1 | 
| NUM_BANDS_TO_PRINT {Integer} | |
| Number of eigen-values that are printed to the standard output. | |
| This keyword cannot be repeated and it expects precisely one integer. | |
| Default value: 10 | 
| PRINT_CHECKSUM {Logical} | |
| If true then the checksums of some arrays will be printed (useful during debug). | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_FORCES {Logical} | |
| If true then the atomic forces are printed at the end of SCF run. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_HASH {Logical} | |
| If true then the hash sums of some arrays will be printed. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_MEMORY_USAGE {Logical} | |
| If true then memory usage will be printed to the standard output. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_NEIGHBORS {Logical} | |
| If true then the list of nearest neighbours for each atom is printed to the standard output. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_PERFORMANCE {Logical} | |
| If true then performance of some compute-intensive kernels will be printed to the standard output. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_STRESS {Logical} | |
| If true then the stress tensor components are printed at the end of SCF run. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PRINT_TIMERS {Logical} | |
| If true then the timer statistics is printed at the end of SCF run. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| PROCESSING_UNIT {Keyword} | |
| Main processing unit to use during the execution. | |
| This keyword cannot be repeated and it expects precisely one keyword. | |
| Default value: AUTO | |
| List of valid keywords: 
 | 
| REDUCE_GVEC {Logical} | |
| Reduce G-vectors by inversion symmetry. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| RMT_MAX {Real} | |
| Maximum allowed muffin-tin radius in case of LAPW. | |
| This keyword cannot be repeated and it expects precisely one real. | |
| Default value: 2.20000000E+000 | 
| SPGLIB_TOLERANCE {Real} | |
| Tolerance of the spglib in finding crystal symmetries | |
| This keyword cannot be repeated and it expects precisely one real. | |
| Default value: 1.00000000E-004 | 
| STD_EVP_SOLVER_NAME {Keyword} | |
| Standard eigen-value solver to use. | |
| This keyword cannot be repeated and it expects precisely one keyword. | |
| Default value: AUTO | |
| List of valid keywords: 
 | 
| USE_SECOND_VARIATION {Logical} | |
| True if second-variational diagonalization is used in LAPW method. | |
| This keyword cannot be repeated and it expects precisely one logical. | |
| The lone keyword behaves as a switch to .TRUE. | |
| Default value: .TRUE. | 
| VERBOSITY {Integer} | |
| Level of verbosity. | |
| This keyword cannot be repeated and it expects precisely one integer. | |
| Default value: 0 | 
| VERIFICATION {Integer} | |
| Level of internal verification. | |
| This keyword cannot be repeated and it expects precisely one integer. | |
| Default value: 0 | 
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