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https://issues.apache.org/jira/browse/MAHOUT-725?focusedWorklogId=998541&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-998541
]
ASF GitHub Bot logged work on MAHOUT-725:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 03/Jan/26 14:04
Start Date: 03/Jan/26 14:04
Worklog Time Spent: 10m
Work Description: rich7420 commented on code in PR #763:
URL: https://github.com/apache/mahout/pull/763#discussion_r2658939535
##########
qdp/qdp-python/src/lib.rs:
##########
@@ -215,6 +246,40 @@ impl QdpEngine {
})
}
+ /// Encode from PyTorch Tensor
+ ///
+ /// Args:
+ /// tensor: PyTorch Tensor (must be on CPU)
+ /// num_qubits: Number of qubits for encoding
+ /// encoding_method: Encoding strategy
+ ///
+ /// Returns:
+ /// QuantumTensor: DLPack-compatible tensor
+ fn encode_tensor(
+ &self,
+ tensor: &Bound<'_, PyAny>,
+ num_qubits: usize,
+ encoding_method: &str,
+ ) -> PyResult<QuantumTensor> {
+ validate_tensor(tensor)?;
+
+ // Convert to flat list for encoding
+ let data: Vec<f64> = tensor
+ .call_method0("flatten")?
+ .call_method0("tolist")?
+ .extract()?;
Review Comment:
It seems here do twice copy.
```
PyTorch tensor → Python list
Python list → Rust Vec<f64>
```
We should improve this in follow-up PR use like numpy() or
`PinnedHostBuffer` way to decrease memory copy time.
Please comments in this part.
Issue Time Tracking
-------------------
Worklog Id: (was: 998541)
Time Spent: 2h 20m (was: 2h 10m)
> Where is org.apache.mahout.cf.taste.impl.model.jdbc in v0.6?
> ------------------------------------------------------------
>
> Key: MAHOUT-725
> URL: https://issues.apache.org/jira/browse/MAHOUT-725
> Project: Mahout
> Issue Type: Question
> Affects Versions: 0.6
> Reporter: Daniel Xiaodan Zhou
> Assignee: Sean R. Owen
> Priority: Major
> Labels: gsoc2011
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> Hello, I'm working on a GSoC2011 project which is to integrate Mahout into
> Drupal to provide content recommender services. I'm now considering whether
> to use the JDBCDataModel provided by Mahout, or retrieve data into memory
> myself and user GenericDataModel. I see
> org.apache.mahout.cf.taste.impl.model.jdbc is missing in Mahout v0.6. If
> JDBCDataModel is removed in future release of Mahout, I'll just ignore it.
> Any suggestions? Thanks!
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