# \#gpu

**URL:** https://discourse.itk.org/tag/gpu/182.md

[Latest](https://discourse.itk.org/latest.md) · [Categories](https://discourse.itk.org/categories.md) · [Tags](https://discourse.itk.org/tags.md)

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## [Not able to get RTK speedups on GPU](https://discourse.itk.org/t/not-able-to-get-rtk-speedups-on-gpu/7507)

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**Author:** [@whitaker](https://discourse.itk.org/u/whitaker)\
**Replies:** 11\
**Last updated:** [July 28, 2025, 9:24pm UTC](https://discourse.itk.org/t/not-able-to-get-rtk-speedups-on-gpu/7507 "2025-07-28T21:24:47Z")

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Hi. I am using RTK to do iterative reconstruction. Everything seems to be working, except when trying to run things on the GPU. Everything compiles fine and it runs. However, when the GPU-compiled programs run, they …

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## [Strange dependency between GPU & CPU filters](https://discourse.itk.org/t/strange-dependency-between-gpu-cpu-filters/5188)

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**Author:** [@Fijoy\_Vadakkumpadan](https://discourse.itk.org/u/Fijoy_Vadakkumpadan)\
**Replies:** 2\
**Last updated:** [July 18, 2022, 5:33am UTC](https://discourse.itk.org/t/strange-dependency-between-gpu-cpu-filters/5188 "2022-07-18T05:33:24Z")

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Do GPU filters in ITK have some hidden dependency on corresponding CPU filters? I’m seeing this unexpected behavior in my application where a GPU filter usage aborts my application with an exception (the kind that canno…

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## [Is it possible to use GPU for resample filter in simpleITK and Windows?](https://discourse.itk.org/t/is-it-possible-to-use-gpu-for-resample-filter-in-simpleitk-and-windows/4357)

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**Author:** [@TY\_Park](https://discourse.itk.org/u/TY_Park)\
**Replies:** 3\
**Last updated:** [August 25, 2021, 6:26pm UTC](https://discourse.itk.org/t/is-it-possible-to-use-gpu-for-resample-filter-in-simpleitk-and-windows/4357 "2021-08-25T18:26:01Z")

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Is it possible to use GPU for image resample in simpleITK or ITK? I checked the previous post, in that, one of the answers was to use the “itk-elastic-opencl” But it seems like work only on Linux Is there any other wa…

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## [GPU support in Python packages](https://discourse.itk.org/t/gpu-support-in-python-packages/4267)

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**Author:** [@zhuangming.shen](https://discourse.itk.org/u/zhuangming.shen)\
**Replies:** 1\
**Last updated:** [July 14, 2021, 2:21pm UTC](https://discourse.itk.org/t/gpu-support-in-python-packages/4267 "2021-07-14T14:21:49Z")

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Hi @matt.mccormick, is the python-supported ITK+GPU available in ITK 4.13.3 ? Thanks in advance.

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## [Is it possible to measure memory transfer time and kernel execution time in ITK + GPU?](https://discourse.itk.org/t/is-it-possible-to-measure-memory-transfer-time-and-kernel-execution-time-in-itk-gpu/4261)

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**Author:** [@Rafael\_Palomar](https://discourse.itk.org/u/Rafael_Palomar)\
**Replies:** 2\
**Last updated:** [July 14, 2021, 8:21am UTC](https://discourse.itk.org/t/is-it-possible-to-measure-memory-transfer-time-and-kernel-execution-time-in-itk-gpu/4261 "2021-07-14T08:21:36Z")

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When benchmarking GPU algorithms it is important to measure kernel execution time separated from memory transfer times (CPU-\>GPU and GPU-\>CPU). Is it possible to measure these times separately for existing algorithms (e…

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## [itk and gpu computation](https://discourse.itk.org/t/itk-and-gpu-computation/3800)

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**Author:** [@pierrectl](https://discourse.itk.org/u/pierrectl)\
**Replies:** 3\
**Last updated:** [January 29, 2021, 10:38pm UTC](https://discourse.itk.org/t/itk-and-gpu-computation/3800 "2021-01-29T22:38:28Z")

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Hello everybody, I browsed through the forum in order to find if some itk pipelines such as registration processes can be computed by the gpu of my computer. I saw this topic from 2017: https://discourse.itk.org/t/is-it…