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Fix missing move to model device for EkfacInfluence implementation #570

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May 3, 2024
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7 changes: 7 additions & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
@@ -1,5 +1,12 @@
# Changelog

## Unreleased

### Fixed

- Fixed missing move of tensors to model device in `EkfacInfluence`
implementation [PR #570](https://github.com/aai-institute/pyDVL/pull/570)

## 0.9.1 - Bug fixes, logging improvement

### Fixed
Expand Down
17 changes: 10 additions & 7 deletions src/pydvl/influence/torch/influence_function_model.py
Original file line number Diff line number Diff line change
Expand Up @@ -303,13 +303,13 @@ def influences_from_factors(
"""
if mode == InfluenceMode.Up:
return (
z_test_factors
z_test_factors.to(self.model_device)
@ self._loss_grad(x.to(self.model_device), y.to(self.model_device)).T
)
elif mode == InfluenceMode.Perturbation:
return torch.einsum(
"ia,j...a->ij...",
z_test_factors,
z_test_factors.to(self.model_device),
self._flat_loss_mixed_grad(
x.to(self.model_device), y.to(self.model_device)
),
Expand Down Expand Up @@ -1195,7 +1195,7 @@ def _get_kfac_blocks(
data, disable=not self.progress, desc="K-FAC blocks - batch progress"
):
data_len += x.shape[0]
pred_y = self.model(x)
pred_y = self.model(x.to(self.model_device))
loss = empirical_cross_entropy_loss_fn(pred_y)
loss.backward()

Expand Down Expand Up @@ -1319,7 +1319,7 @@ def _update_diag(
data, disable=not self.progress, desc="Update Diagonal - batch progress"
):
data_len += x.shape[0]
pred_y = self.model(x)
pred_y = self.model(x.to(self.model_device))
loss = empirical_cross_entropy_loss_fn(pred_y)
loss.backward()

Expand Down Expand Up @@ -1526,7 +1526,10 @@ def influences_from_factors_by_layer(
influences = {}
for layer_id, layer_z_test in z_test_factors.items():
end_idx = start_idx + layer_z_test.shape[1]
influences[layer_id] = layer_z_test @ total_grad[:, start_idx:end_idx].T
influences[layer_id] = (
layer_z_test.to(self.model_device)
@ total_grad[:, start_idx:end_idx].T
)
start_idx = end_idx
return influences
elif mode == InfluenceMode.Perturbation:
Expand All @@ -1539,7 +1542,7 @@ def influences_from_factors_by_layer(
end_idx = start_idx + layer_z_test.shape[1]
influences[layer_id] = torch.einsum(
"ia,j...a->ij...",
layer_z_test,
layer_z_test.to(self.model_device),
total_mixed_grad[:, start_idx:end_idx],
)
start_idx = end_idx
Expand Down Expand Up @@ -1626,7 +1629,7 @@ def explore_hessian_regularization(
being dictionaries containing the influences for each layer of the model,
with the layer name as key.
"""
grad = self._loss_grad(x, y)
grad = self._loss_grad(x.to(self.model_device), y.to(self.model_device))
influences_by_reg_value = {}
for reg_value in regularization_values:
reg_factors = self._solve_hvp_by_layer(
Expand Down
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