CUDA 9.2 Bug - Githubissues

ComputationalRadiationPhysics / jungfrau-photoncounter

Conversion of Jungfrau pixel detector data to photon count rate

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CUDA 9.2 Bug #65

Closed kloppstock closed 4 years ago

kloppstock commented 4 years ago

Due to a bug affecting the cluster kernel, CUDA 10 or higher is currently required. Additionally, extracting the element layer size from the work group size also causes problems (in CUDA 9 and 10) in the cluster kernel. This is currently fixed by passing the Accelerator struct as a template parameter so that the compiler can use this information already at compile time.

kloppstock commented 4 years ago

Due to other similar bugs (see Issue #66), a workaround was implemented which is currently uploaded to the clustering-bug branch.

kloppstock commented 4 years ago

An uninitialized variable was found in code related to the ClusterKernel (sum in findSumAndMax()). With this fixed, similar bugs did not occur even with the workaround removed.