Fix Parallel Split-K on Gemm Operation Profiler #1109
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Parallel Split-k on Gemm Operation seems to be broken without the below change. The batch_stride is used for reduction workspace stride between the parallel partitions grid_z are writing to. (Fixes #1108 )
cc: @ANIKET-SHIVAM , @hwu36 , @IonThruster , @thakkarV