Struct FixedFunction 

pub struct FixedFunction {
    pub stage_id: String,
    pub input_elems: usize,
    pub output_elems: usize,
    pub dtype: DType,
}

A stage baked into hardware that cannot be reprogrammed at run time.

An FPGA bitstream implements exactly one datapath. Synthesis takes minutes, so the mesh cannot ship it a graph the way it ships one to a CPU/GPU worker — which is why rlx-fpga is a code generator and deliberately does not implement the runtime Backend trait. Instead the board joins as a rank that advertises this descriptor, and the coordinator only ever assigns it the matching stage.

Fields

stage_id: String

Identifier of the synthesized stage. The coordinator sets the same id on the StageSpec it ships; a mismatch is refused before any work moves.

input_elems: usize

Element count of the activation this datapath consumes.

output_elems: usize

Element count it produces.

dtype: DType

Element type the datapath was synthesized for (INT8 datapaths are common on FPGA; the host still exchanges f32 on the wire and the board shim does the conversion).

Implementations

impl FixedFunction

pub fn new( stage_id: impl Into<String>, input_elems: usize, output_elems: usize, dtype: DType, ) -> Self

pub fn accepts(&self, spec: &StageSpec) -> Result<(), String>

Whether this hardware can run spec. Checked by the coordinator before shipping, so a mismatch is a clear error at placement time rather than a hang or a wrong number at execution time.

Trait Implementations

impl Clone for FixedFunction

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FixedFunction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FixedFunction

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FixedFunction

impl PartialEq for FixedFunction

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for FixedFunction

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FixedFunction