关于启用GPU加速后循环运行时可能出现的崩溃问题

[sudahhh]

您好，我再运用GPU加速循环计算icgn算法也就是icgn->compute(queue)时可能会遇到崩溃情况，通过调试显示是在OpenCorrGPU.dll中有异常，具体为除数为0(integar division by zero)见附件图。但是由于好像GPU的源码没有开放，而且循环出现崩溃的张数也不恒定，可能几十张，也可能几百张，也可能是几千张，就还没有找到原因想来问一问，只用CPU跑是没有什么问题的。

附件：

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[vincentjzy]

The screenshot looks burry, so we cannot read the information within it. We guess that the error may occur if one of the subset falls in the dark region or goes out of the image. In this case, divison by zeor may happen during the calculation of denominator. Indeed, we made GPU acceleration module to achieve maximum speed. Thus, there is few data check like the CPU module, as the if-else judgement offsets the efficiency of GPU to a large extent. Please check the setting of POI and make sure there are placed in ROI properly.