guan404ming commented on code in PR #690:
URL: https://github.com/apache/mahout/pull/690#discussion_r2594481190
##########
qdp/qdp-core/src/gpu/encodings/amplitude.rs:
##########
@@ -121,6 +122,129 @@ impl QuantumEncoder for AmplitudeEncoder {
fn description(&self) -> &'static str {
"Amplitude encoding with L2 normalization"
}
+
+ /// Override to avoid intermediate Vec allocation. Processes chunks
directly to GPU offsets.
+ fn encode_chunked(
+ &self,
+ device: &Arc<CudaDevice>,
+ chunks: &[Float64Array],
+ num_qubits: usize,
+ ) -> Result<GpuStateVector> {
+ #[cfg(target_os = "linux")]
+ {
+ let total_len: usize = chunks.iter().map(|c| c.len()).sum();
Review Comment:
Shall we reuse the pre-process module here?
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