UnsatisfiedLinkError: 'boolean ai.djl.pytorch.jni.PyTorchLibrary.torchIsContiguous(long)'

[david-sitsky]

Description

I am using:

ai.djl.pytorch:pytorch-engine:0.28.0-SNAPSHOT
ai.djl.pytorch:pytorch-jni:2.2.2-0.28.0-SNAPSHOT
ai.djl.pytorch:pytorch-native-cpu:2.2.2:linux-x86_64

My program has started to just fail given an update from snapshot. This seems related to this PR: #3137 which has added a method to PyTorchLibrary.torchIsContiguous() which was merged recently.

java.lang.UnsatisfiedLinkError: 'boolean ai.djl.pytorch.jni.PyTorchLibrary.torchIsContiguous(long)'
        at ai.djl.pytorch.jni.PyTorchLibrary.torchIsContiguous(Native Method) ~[pytorch-engine-0.28.0-SNAPSHOT.jar:?]
        at ai.djl.pytorch.jni.JniUtils.getByteBuffer(JniUtils.java:1682) ~[pytorch-engine-0.28.0-SNAPSHOT.jar:?]
        at ai.djl.pytorch.engine.PtNDArray.toByteBuffer(PtNDArray.java:233) ~[pytorch-engine-0.28.0-SNAPSHOT.jar:?]
        at ai.djl.ndarray.NDArray.toFloatArray(NDArray.java:277) ~[api-0.28.0-SNAPSHOT.jar:?]
...
        at ai.djl.inference.Predictor.batchPredict(Predictor.java:190) ~[api-0.28.0-SNAPSHOT.jar:?]
        at ai.djl.inference.Predictor.predict(Predictor.java:132) ~[api-0.28.0-SNAPSHOT.jar:?]

I suspect this is related to what GitHub actions have run and perhaps what is still pending? I thought I'd report it just in case.

Is there a way to order the actions to prevent this from happening in the future?

[frankfliu]

There are some jni code change recently. Please remove cache and refresh the dependencies. This inconsistence only affect -SNAPSHOT build.

[david-sitsky]

My apologies.. I had an errand PYTORCH_LIBRARY_PATH setting in place pointing to an older version. Once that was removed all looked fine again.

I read 0.28.0 is planned to be released sometime in May? Is that looking likely? I'll hoping to move off snapshots soon.. :)