Struct SessionOptions 

pub struct SessionOptions {
    pub provider: ExecutionProvider,
    pub device_id: Option<i32>,
    pub threads: Option<usize>,
    pub directml_static_shape_workaround: bool,
    pub cpu_fallback: bool,
}

Fields

provider: ExecutionProvider

device_id: Option<i32>

DirectML adapter index; None lets the runtime pick.

threads: Option<usize>

Explicit intra-op threads. Opts the session out of the shared pool.

directml_static_shape_workaround: bool

Set for graphs with a fixed time dimension run on DirectML: applies the HeardRight-measured fusion workaround (ORT-DirectML 1.24.4 silently returns near-zero output for static-shape conformer encoders). Remove once a fixed onnxruntime-directml release passes the corpus.

cpu_fallback: bool

When the requested accelerator is unsupported on this OS, fails to register, or fails to load the model, build a CPU session instead. Off by default: failures are errors. The fallback is never silent; BuiltSession::fallback records why it happened.

Implementations

impl SessionOptions

pub fn new(provider: ExecutionProvider) -> Self

pub fn with_device_id(self, device_id: Option<i32>) -> Self

pub fn with_threads(self, threads: Option<usize>) -> Self

pub fn with_cpu_fallback(self, cpu_fallback: bool) -> Self

pub fn cpu_for_stage(&self) -> Self

Same options forced to CPU, for dispatch-bound stages (mel, decoder/joint).

pub fn build_from_file(&self, path: &Path) -> Result<Session, SessionError>

pub fn build_from_memory(&self, bytes: &[u8]) -> Result<Session, SessionError>

pub fn build_from_file_reported( &self, path: &Path, ) -> Result<BuiltSession, SessionError>

Like Self::build_from_file, also reporting the effective provider.

pub fn build_from_memory_reported( &self, bytes: &[u8], ) -> Result<BuiltSession, SessionError>

Like Self::build_from_memory, also reporting the effective provider.

Trait Implementations

impl Clone for SessionOptions

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 SessionOptions

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

Formats the value using the given formatter.

impl Default for SessionOptions

fn default() -> Self

Returns the “default value” for a type.