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Backport gh-2002 #2004

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Merged
merged 2 commits into from
Feb 20, 2025
Merged

Backport gh-2002 #2004

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676075a
Fix memory leaks in synchronizing kernel calls
ndgrigorian Feb 20, 2025
fd47767
Add gh-2002 to 0.19.0 changelog
ndgrigorian Feb 20, 2025
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,7 @@ A number of adjustments were also made to improve performance of `dpctl` reducti
* Corrected uses of NumPy constructors with `tensor.usm_ndarray` inputs in test suite [gh-1968](https://github.com/IntelPython/dpctl/pull/1968)
* Fixed array API namespace inspection utilities showing `complex128` as a valid dtype on devices without double precision and `device` keywords not working with `dpctl.SyclQueue` or filter strings [gh-1979](https://github.com/IntelPython/dpctl/pull/1979)
* Fixed a bug in `test_sycl_device_interface.cpp` which would cause compilation to fail with Clang version 20.0 [gh-1989](https://github.com/IntelPython/dpctl/pull/1989)
* Fixed memory leaks in smart-pointer-managed USM temporaries in synchronizing kernel calls [gh-2002](https://github.com/IntelPython/dpctl/pull/2002)

### Maintenance

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8 changes: 4 additions & 4 deletions dpctl/tensor/libtensor/source/accumulators.cpp
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Expand Up @@ -210,7 +210,7 @@ std::size_t py_mask_positions(const dpctl::tensor::usm_ndarray &mask,
sycl::event::wait(host_task_events);

// ensure deleter of smart pointer is invoked with GIL released
shape_strides_owner.release();
shape_strides_owner.reset(nullptr);
}
throw std::runtime_error("Unexpected error");
}
Expand All @@ -231,7 +231,7 @@ std::size_t py_mask_positions(const dpctl::tensor::usm_ndarray &mask,

sycl::event::wait(host_task_events);
// ensure deleter of smart pointer is invoked with GIL released
shape_strides_owner.release();
shape_strides_owner.reset(nullptr);
}

return total_set;
Expand Down Expand Up @@ -367,7 +367,7 @@ std::size_t py_cumsum_1d(const dpctl::tensor::usm_ndarray &src,
sycl::event::wait(host_task_events);

// ensure USM deleter is called with GIL released
shape_strides_owner.release();
shape_strides_owner.reset(nullptr);
}
throw std::runtime_error("Unexpected error");
}
Expand All @@ -387,7 +387,7 @@ std::size_t py_cumsum_1d(const dpctl::tensor::usm_ndarray &src,
sycl::event::wait(host_task_events);

// ensure USM deleter is called with GIL released
shape_strides_owner.release();
shape_strides_owner.reset(nullptr);
}

return total;
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2 changes: 1 addition & 1 deletion dpctl/tensor/libtensor/source/copy_numpy_ndarray_into_usm_ndarray.cpp
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Expand Up @@ -325,7 +325,7 @@ void copy_numpy_ndarray_into_usm_ndarray(
dst_offset, depends, {copy_shape_ev});

// invoke USM deleter in smart pointer while GIL is held
shape_strides_owner.release();
shape_strides_owner.reset(nullptr);
}

return;
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