class FifoOption(enum.Enum)
| Info | Value |
|---|---|
| Package | mvnc |
| Module | mvncapi |
| Version | 2.0 |
| See also | Fifo, Fifo.set_option(), Fifo.get_option() |
FifoOption is an enumeration that defines Fifo options that can be read with Fifo.get_option() or set with Fifo.set_option().
| Option | Option Type | Possible Values | Description |
|---|---|---|---|
| RW_TYPE | int | Values in the FifoType enumeration | The type of Fifo (read-only or write-only). |
| RW_CONSUMER_COUNT | int | 1 | The number of times an element must be read by a graph or the API before the element is removed (default 1). The API can always only read once even if this is greater than 1. Only 1 currently supported. |
| RW_DATA_TYPE | int | Values in the FifoDataType enumeration | The type of data that will be placed in the Fifo (default: 32FP). Regardless of what data types the input and output Fifos are configured for, the API will convert tensors to 16FP while performing inferences. |
| RW_DONT_BLOCK | int | 0 | 0: Fifo.write_elem() will block if the input Fifo is full and Fifo.read_elem() will block if the output Fifo is empty (default). 1: Not yet implemented. |
| RO_CAPACITY | int | Unbounded positive int | The maximum number of elements the Fifo can hold. This is set with Graph.allocate_with_fifos() or Fifo.allocate(). |
| RO_READ_FILL_LEVEL | int | Unbounded positive int | The number of tensors (Fifo elements) in the queue for a readable Fifo. |
| RO_WRITE_FILL_LEVEL | int | Unbounded positive int | The number of tensors (Fifo elements) in the queue for a writable Fifo. |
| RO_GRAPH_TENSOR_DESCRIPTOR | TensorDescriptor | N/A | A TensorDescriptor, which describes the shape of tensors that this Fifo will hold. This is set with Graph.allocate_with_fifos() or Fifo.allocate(). |
| RO_STATE | int | Values in the FifoState enumeration | The current state of the Fifo. |
| RO_NAME | str | Fifo name string | The name of the Fifo that was set when the Fifo was created. |
| RW_HOST_TENSOR_DESCRIPTOR | TensorDescriptor | N/A | The application tensor descriptor. This defaults to channel minor format (RGB/BGR) with 32FP FifoDataType. See TensorDescriptor for more information. |
Notes
- Options prefixed with ‘RW’ have read/write permission and are both gettable and settable.
- Options prefixed with ‘RO’ have read-only permission and are only gettable.
- All settable Fifo options except for RW_HOST_TENSOR_DESCRIPTOR must be set before Fifo.allocate() is called for this Fifo.