opencl: mark argsort
unsupported if cols exceed workgroup limit
#15375
+17
−3
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In the current implementation, the workgroup size is
(cols, 1, 1)
. For large tensors, the workgroup size may exceed the kernel limit, resulting in kernel launch failure. E.g., in the new test case added in #15354, the max workgroup size for this kernel on A750 is 896 but 1024 is required.This PR marks such
argsort
as unsupported. Also print out the max workgroup size supported by the device (the upper bound of the max workgroup size supported by a particular kernel) for reference.