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hipSYCL

illuhad / hipSYCL

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Incorrect results for sub_group::get_group_id() on CUDA

illuhad
illuhad commented Sep 6, 2021

Bug summary
There is evidence that sub_group::get_group_id() does not return the same value as threadIdx.x / warpSize (assuming 1D kernel), as expected on CUDA. We should check the implementation of this function. Our implementation of this function performs bit manipulation magic, presumably the optimization went to far...

To Reproduce
Compare sub_group{}.get_group_id() or `sub

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Rtoax / 2D3D-TI-FD-RTM-cuda

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这是一个基于NVIDIA cuda的开源程序，其中包括了二维和三维VTI介质正演模拟和逆时偏移成像，二维TTI介质逆时偏移成像，以及以上介质的ADCIGs提取[translation: This is an open source program based on NVIDIA cuda, which includes two-dimensional and three-dimensional VTI media forward simulation and reverse time migration imaging, two-dimensional TTI media reverse time migration imaging, and ADCIGs extraction of the above media]

nvidia-cuda anisotropy finite-different reverse-time-migration angle-domain-common-imaging-gathers
  • Updated Jun 18, 2021
  • Cuda

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