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DML_EXECUTION_FLAGS enumeration (directml.h)

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Supplies options to DirectML to control execution of operators. These flags can be bitwise OR'd together to specify multiple flags at once.

Syntax

typedef enum DML_EXECUTION_FLAGS {
  DML_EXECUTION_FLAG_NONE = 0,
  DML_EXECUTION_FLAG_ALLOW_HALF_PRECISION_COMPUTATION = 0x1,
  DML_EXECUTION_FLAG_DISABLE_META_COMMANDS = 0x2,
  DML_EXECUTION_FLAG_DESCRIPTORS_VOLATILE = 0x4
} ;

Constants

 
DML_EXECUTION_FLAG_NONE
Value: 0
No execution flags are specified.
DML_EXECUTION_FLAG_ALLOW_HALF_PRECISION_COMPUTATION
Value: 0x1
Allows DirectML to perform computation using half-precision floating-point (FP16), if supported by the hardware device.
DML_EXECUTION_FLAG_DISABLE_META_COMMANDS
Value: 0x2
Forces DirectML execute the operator using DirectCompute instead of meta commands. DirectML uses meta commands by default, if available.
DML_EXECUTION_FLAG_DESCRIPTORS_VOLATILE
Value: 0x4
Allows changes to bindings after an operator's execution has been recorded in a command list, but before it has been submitted to the command queue. By default, without this flag set, you must set all bindings on the binding table before you record an operator into a command list.

This flag allows you to perform late binding—that is, to set (or to change) bindings on operators that you've already recorded into a command list. However, this may result in a performance penalty on some hardware, as it prohibits drivers from promoting static descriptor accesses to root descriptor accesses.

For more info, see DESCRIPTORS_VOLATILE.

Requirements

Requirement Value
Header directml.h

See also

Binding in DirectML