Section ACC

• Configuration options for the ACC-Driver.

• Section path: CP2K_INPUT / GLOBAL / DBCSR / ACC

• This section cannot be repeated.

• Subsections

  • none

• Keywords

  • AVOID_AFTER_BUSY
  • BINNING_BINSIZE
  • BINNING_NBINS
  • MIN_FLOP_PROCESS
  • MIN_FLOP_SORT
  • POSTERIOR_BUFFERS
  • POSTERIOR_STREAMS
  • PRIORITY_BUFFERS
  • PRIORITY_STREAMS
  • PROCESS_INHOMOGENOUS
  • STACK_SORT

• Keyword descriptions

  AVOID_AFTER_BUSY
  	AVOID_AFTER_BUSY {Logical}
  	If enabled, stacks are not processed by the acc-driver after it has signaled congestion during a round of flushing. For the next round of flusing the driver is used again.
  	This keyword cannot be repeated and it expects precisely one logical.
  	Default value: .FALSE.

  BINNING_BINSIZE
  	BINNING_BINSIZE {Integer}
  	Size of bins used when ordering the stacks with the binning-scheme.
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 16

  BINNING_NBINS
  	BINNING_NBINS {Integer}
  	Number of bins used when ordering the stacks with the binning-scheme.
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 4096

  MIN_FLOP_PROCESS
  	MIN_FLOP_PROCESS {Integer}
  	Only process stacks with more than the given number of floating-point operations per stack-entry (2*m*n*k).
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 0

  MIN_FLOP_SORT
  	MIN_FLOP_SORT {Integer}
  	Only sort stacks with more than the given number of floating-point operations per stack-entry (2*m*n*k). Alternatively, the stacks are roughly ordered through a binning-scheme by Peter Messmer. (Depends on ACC%STACK_SORT)
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 4000

  POSTERIOR_BUFFERS
  	POSTERIOR_BUFFERS {Integer}
  	Number of transfer-buffers associated with low priority streams.
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 80

  POSTERIOR_STREAMS
  	POSTERIOR_STREAMS {Integer}
  	Number of acc streams created with low priority.
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 4

  PRIORITY_BUFFERS
  	PRIORITY_BUFFERS {Integer}
  	Number of transfer-buffers associated with high priority streams.
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 40

  PRIORITY_STREAMS
  	PRIORITY_STREAMS {Integer}
  	Number of acc streams created with high priority.
  	This keyword cannot be repeated and it expects precisely one integer.
  	Default value: 4

  PROCESS_INHOMOGENOUS
  	PROCESS_INHOMOGENOUS {Logical}
  	If enabled, inhomogenous stacks are also processed by the acc driver.
  	This keyword cannot be repeated and it expects precisely one logical.
  	Default value: .TRUE.

  STACK_SORT
  	STACK_SORT {Logical}
  	Sort multiplication stacks according to C-access.
  	This keyword cannot be repeated and it expects precisely one logical.
  	Default value: .TRUE.